Movement of substances across a cell membrane without using energy is called active transport is false.
what is active transport?This refers to the process by which molecules or ions move across a cell membrane from a region of lower concentration to a region of a higher concentration, that is against the concentration gradient. Active transport needs cellular energy to achieve this movement.
Typical examples of active transport are as follows the uptake of glucose in the intestines in humans and the uptake of mineral ions into root hair cells of plants.
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when a bacterium such as e. coli is shifted from a warmer growth temperature to cooler growth temperature, it might compensate by:
Sixth, a bacteria like E. coli adjusts by inserting long-chain fatty acids into its membrane when it is moved from a warmer to a cooler growing temperature.
What makes a bacterium different from a bacteria?The solitary word for "bacteria," which is a plural term, is "bacterium." To put it another way, you only use the word "bacteria" if there are multiple bacteria present. Otherwise, you use "bacterium" because there's only one.
Which is meant by bacterium?A bacterium is an organism that lacks a definite nucleus but is very small and classified as a microorganism in biology. The name itself is derived from the Greek term bakterion, which means "small stick or rod" and describes the form of a bacteria under a microscope.
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Drag each of the following labels into the appropriate box to identify which division of the autonomic nervous system is dominant during the activity. Parasympathetic or Sympathetic.
Digesting, defecation, diuresis, running, stress, excitement, and fight-or-flight.
Dominance with Empathy, When you're anxious, in danger, or physically active, this system becomes more active.
What of the following can be separated into sympathetic and parasympathetic divisions?Motor impulses are supplied to cardiac muscle, smooth muscle, and glandular epithelium by the autonomic nervous system, also known as the visceral efferent neural system. There are further divisions for the sympathetic and parasympathetic systems.
The autonomic nervous system's primary division is which one?In the condition known as sympathetic dominance, your immediate thoughts, actions, and reactions are under the control of the sympathetic side of your autonomic nervous system. This condition, which you can be in when you're "stressed," is frequently referred to as "Fight or Flight."
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Place the events of excitation contraction coupling in order from the action potential being produced at the neuromuscular junction to finish.
a. Ca2+ diffuses out into the sarcoplasm
b.Ca2+ release channels in SR open
c. Action Potentials conducted along transverse tubules
d. AP opens voltage gated Ca2+ channels in T-tubules
e. Ca2+ binds to troponin beginning contraction
The junctional folds and sarcolemma serve as the starting point for the excitation-contraction coupling events, which then move on through the T tubules and sarcoplasmic reticulum before acting at the sarcomere.
What takes place when a muscle contracts?Muscle contraction occurs when tension-producing areas within muscle cells are activated.Muscle tension can be generated without a change in muscle length, such as while keeping a heavy object in place, hence muscle contraction does not always imply muscle shortening in physiology.Actin and myosin filaments glide past one another to cause muscle contraction. It is generally accepted that cross-bridges that protrude from myosin filaments and engage in cyclic interactions with actin filaments when ATP is hydrolyzed are what propel this process.Action Potentials carried out via transverse tubules are performed by Ca2+ release channels in SR.Ca2+ spreads into the sarcoplasm.Troponin binds to Ca2+ to start contraction.AP activates voltage gated the T-tubules' Ca2+ channelsTo learn more about muscular contraction refer to:
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which describes interactions between substances and stomata during photosynthesis? check all that apply.
Oxygen is released through stomata and Carbon dioxide enters stomata describes interactions between substances and stomata during photosynthesis.
Energy is needed for all biological activities, including those in humans and microbes. Many creatures consume other organisms while they are eating in order to acquire stored energy. But from where does the energy that food contains come? The source of all of this energy is photosynthesis. All life on earth depends on photosynthesis; this includes both plants and animals. It is the only biological process capable of converting solar energy, which comes from space, into the chemical molecules (carbohydrates) that every living thing uses to fuel its metabolism.
Only plants, algae, and a kind of bacteria known as cyanobacteria are able to carry out photosynthesis (Figure 1). They are referred to as photoautotrophs, which literally translates to "self-feeders utilizing light," because they produce their own food using light. Because they must rely on the sugars produced by photosynthetic organisms for their energy requirements, other creatures, such as mammals, fungi, and the majority of other bacteria, are referred to be heterotrophs
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which cascade begins with the first protein in the complement series that is activated by an antibody that has been made in response to a microbe?
The first protein in the complement series that is activated by an antibody produced in response to a bacterium initiates the complement cascade.
What does the word "cascade" mean?A series of chemical events that take place inside a biological cell in response to a stimulus is known as a biochemical cascade, sometimes referred to as a signaling cascade or signaling pathway.
The complement cascade is a series of events where, once an antibody attaches to a foreign particle and detects it, the component proteins are complicatedly triggered by one another, resulting in the elimination of the pathogen or foreign particle via phagocytosis.
Which antibody activates the complement cascade?It is well known that both IgG and IgM can activate complement via the classical pathway by binding of C1q to the Fc regions of these immunoglobulins.
Three biochemical pathways activate the complement system: the classical complement pathway, the alternative complement pathway, and the lectin pathway.
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Harmful bacteria enter a peron' body through contaminated food. A a reult, the peron vomit. Thi repone MOST likely fight infection by —
Harmful bacteria enter a person's body through contaminated food and as a result, the person vomits so this response fights infection by gastroenteritis.
The most common reason for gastroenteritis is a virus. The most sorts are rotavirus and norovirus. Rotavirus is that the world's most typical reason for diarrhoea in infants and young youngsters. Norovirus is that the most typical reason for serious malady and additionally foodborne disease outbreaks within the U.S.
Contaminated food is mostly outlined as foods that are spoiled or tainted as a result of they either contain microorganisms, like microorganism or parasites, or toxic substances that create them unfit for consumption. A food material are often biological, chemical or physical in nature, with the previous being additional common.
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if two plant species have similar dispersal and competitive abilities, what factor might help determine which species occupies an early seral stage?
The priority effect can determine which species occupies an early seral stage, when two plant species have similar dispersal and competitive abilities.
Natural occurrences are always the cause of succession. After primary succession or separately from primary succession, secondary succession can occur. In contrast to late successional plants, The priority effect which frequently exhibit the opposite traits, early successional plants typically have high rates of photosynthesis and respiration, high rates of resource intake, and high light adjustment plant species . The priority effect impacts pertain to the sequence or time of plant species introduction, including how The priority effect early arrivals at a place affect later arrivals' establishment, development, or reproduction in either a good or negative way.
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gout is caused by deposition of uric acid crystals in joints. it results from the metabolic breakdown of purines, which are found in many foods and are part of normal human tissue. traditionally, doctors have recommended that people with gout avoid or limit consuming foods that are high in purines. based on this information, which macromolecule that is naturally found in the human body would be most problematic for these patients?
Nucleic acid macromolecule which is present naturally in human body would be the most problematic for these patients.
what is Gout attack?
Anyone can develop gout, a common and complicated form of arthritis. It is characterized by frequent big toe pain and sudden, acute bouts of swelling, redness, and soreness in one or more joints.
Gout attacks can come on abruptly, frequently causing you to wake up in the middle of the night feeling as though your big toe is on fire. Even the weight of the bedsheet may appear unpleasant on the affected joint because it is so hot, swollen, and sensitive.
Uric acid, which causes gout, is a byproduct of purine metabolism, which is produced when nucleic acids (DNA and RNA) and ATP are broken down. Uric acid can also be produced from proteins.
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Plants take in __________ from the environment and release __________ back into the environment.
Intake of carbon dioxide from the atmosphere and emission of oxygen are both accomplished by plants.
Where do the plants absorb and expel?Through their roots, plants absorb the water they require from the soil. Plants can absorb the gas carbon dioxide from the air by way of microscopic holes in their leaves. Once they have carbon dioxide and water, they can use solar energy to create food.
What kind of waste gas does a plant release?Through the stomata, extra oxygen gas created by photosynthesis is expelled during the day. Normally, photosynthesis consumes the carbon dioxide produced by respiration.
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After nutrients have been absorbed into the bloodstream, waste products are stored in the.
The trash is transferred to the large intestine, or bowel, after all the nutrients have been absorbed in blood. The waste (faeces) is stored in the rectum once the water has been eliminated.
Feces is the name for the generated solid waste. It keeps moving through the sigmoid and descending colons. Prior to expulsion, the large intestine briefly retains the faeces. The ingested materials are delivered by blood vessels to various body organs where they are employed to assemble complex materials, such the proteins needed by human body. The big intestine receives the food that was not digested and was not absorbed.
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The two main divisions of the human nervous system are ……. and central nervous system.
(A) Enteric nervous system.
(B) Somatic nervous system.
(C) Peripheral nervous system
(D) Parasympathetic division
(E) Sympathetic division
The two main divisions of the human nervous system are Peripheral nervous system and central nervous system.
What is peripheral nervous system ?One of the two parts that make up the nervous system of bilateral animals is the peripheral nervous system; the other part is the central nervous system. Outside of the brain and spinal cord, the PNS is made up of nerves and ganglia.Your brain and spinal cord are inside your body, but peripheral nerves are not. Your brain and the rest of your body communicate with each other through them. There are two primary sections that make up the peripheral nervous system: ANS: autonomic nervous system regulates glands and involuntary bodily processes.The somatic nervous system, which also includes the sensory nervous system and the somatosensory system, is made up of many nerves that serve both the somatic and sensory purposes.Somatosensory information is carried via cranial nerves in the head and neck. With a few exceptions, the twelve cranial nerves, ten of which come from the brainstem, mostly regulate the functions of the head's anatomical structures.To learn more about peripheral nervous refer :
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a nonsense mutation typically reduces the length of the polypeptide and thus alters its function. this is due to the fact that the of the protein is terminated prematurely. State True or False your answer:
a. True
b. False
a nonsense mutation typically reduces the length of the polypeptide and thus alters its function. this is due to the fact that the of the protein is terminated prematurely is true.
What transpires in the event of a nonsense mutation?A DNA alteration that causes a protein to cease or end its translation sooner than predicted is known as a nonsense mutation or its synonym, a stop mutation. This is a frequent kind of mutation that affects both humans and other animals and results in the expression of a protein that is either truncated or ineffective.
This typical reading frame will be disrupted by a mutation, which will result in an inaccurate reading of the whole gene sequence. As a result, the protein may receive the incorrect amino acids or it may develop a codon that prevents the protein from getting longer.
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Explain how mitochondrial failure is involved in shivering and slow, shallow breathing.
According to www.chop.edu:
"Respiratory problems may occur when mitochondrial disease impairs the function of muscles that control breathing or swallowing. Weakness in these muscles can make it difficult to swallow properly or clear the airway by effective coughing."
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What is "biological altruism" WILL GIVE BRAINLIEST!
Answer: Biological altruism is a type of behavior in which an individual organism acts in a way that benefits other organisms, even at a cost to itself. This type of behavior is often seen in social animals, such as bees or ants, where individuals work together for the good of the group. The key feature of biological altruism is that it is an evolved trait, meaning that it has been selected for over time because it provides a reproductive advantage to the individual or group.
At which stage of meiosis i does the exchange in genetic material between homologous chromosomes result in recombinant chromosomes?
Answer:
Prophase I
Explanation:
The chromosomes condense and become visible inside the nucleus during Prophase I.
Biomolecules contain a variety of atoms. Which biomolecule maintains a ratio of 1 carbon atom to 2 hydrogen atoms to 1 oxygen atom?.
The biomolecule that maintains a ratio of 1 carbon atom to 2 hydrogen atoms to 1 oxygen atom is glucose. Glucose is a simple sugar that is a common source of energy for living organisms. It is a six-carbon molecule that contains twelve hydrogen atoms and six oxygen atoms, giving it a chemical formula of C6H12O6.
Glucose is an important biomolecule that plays a central role in metabolism. It is produced by photosynthetic organisms, such as plants and algae, through the process of photosynthesis, where it is synthesized from carbon dioxide and water using light energy from the sun. It can then be stored in the form of glycogen in animals and plants, or converted into other molecules, such as fatty acids or ethanol, for energy storage or other purposes.
Overall, glucose is a biomolecule that maintains a ratio of 1 carbon atom to 2 hydrogen atoms to 1 oxygen atom, and it plays a crucial role in the metabolism of living organisms.
A distribution of variation in a trait, such as height, that does not have any clear cut boundaries between types
a. Haploid Law of Segregation
b. Cystic fibrosis
c. Autosome Law of Independent Assortment
d. Huntington's disease diploid continuous
A distribution of variation in a trait, such as height, that does not have any clear cut boundaries between types (c) Autosome Law of Independent Assortment.
The alleles of two or more different genes are separately selected into gametes, in accordance with Mendel's law of independent assortment. In other words, an allele for one gene does not affect the allele for another gene that a gamete acquires.
During meiosis, a mechanism known as independent assortment causes the chromosomes to randomly travel to different poles. After meiosis, a gamete will have 23 chromosomes, but independent assortment implies that each gamete will have one of numerous possible chromosome combinations.
During cell division during meiosis, homologous chromosomes are distributed at random to daughter cells, whereas different chromosomes segregate separately from one another. The term for this is independent assortment. It produces gametes with distinctive chromosomal arrangements.
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In eukaryotes, dna is wrapped around ______________ proteins, forming structures called _____________.
histones ,The arrangement & organization of connected components in a physical thing or system, or the organized object or system, is referred to as a structure.
What characteristics make a cell eukaryotic?Any cell or creature with a distinct nucleus is called a eukaryote.The nucleus of a eukaryotic cell, which houses the well-defined chromosomes (bodies that hold the genetic material), is surrounded by a nuclear membrane.
What are the five eukaryotes?Animals, plants, fungus, and protists are the four categories of eukaryotes.Protists are a class of eukaryotic organisms that include protozoa, slime molds, and some types of algae but are not classified as animals, plants, or fungi.Protists and fungi are typically unicellular, whereas mammals and plants are multicellular.
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the following is now known about biofeedback as an effective relaxation technique.
Biofeedback as an effective relaxation technique in which a mind-body method that includes controlling uncontrollable bodily functions through the use of visual or aural input.
With the aid of visual or aural feedback, people can learn to recognise the bodily manifestations of stress and anxiety, such as elevated heart rate, body temperature, and tense muscles. People are able to learn how to relax their minds and bodies and better cope with the symptoms of stress by employing biofeedback.
The purpose of biofeedback is to alter the body in a subtle way such that a desired consequence occurs. This might entail letting go of some muscles, a slower heartbeat, or a lessening of pain. Some symptoms include blood flow, blood pressure, heart rate, muscle tension and pain perception.
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Many eukaryotic cells can be grown in tissue culture in the laboratory. Suppose you have two tissue cultures, one in g1 phase and one in s phase. How would you determine which culture was in g1 and which was in s?.
We can determine which culture was in g1 and which was in s : by looking at the state of DNA molecule and presence of histones, centrioles and spindle fibers.
What do you understand by interphase?Interphase occurs before cell division and it is composed of G1, S and G2 stages.
During G1 stage, cell duplicates in size and also organelles and other cytoplasmatic structures duplicate. High intense biochemical activity is the characteristic of this stage. During S stage, DNA replication process occurs. Synthesis of histones and other associated proteins also occurs at this point.
G2 stage is the final one before cellular division. Slow process of DNA condensation occurs and duplication of centrioles completes.
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Base your answers to questions 1 and 2 on the diagram below of a
mitochondrion and on your knowledge of biology.
H₂O
CO₂
02
Pyruvic acid
1. All the arrows are associated with the process of
(1) carbon fixation
(3) anaerobic respiration
(2) photochemical reaction (4) aerobic respiration
when the mitochondrion and on your understanding of biology. Pyruvic acid: H2O CO2 02
4 is the right answer.
What does pyruvic acid do to the body?At the confluence of the breakdown of carbs, lipids, and proteins (catabolism) and their synthesis (anabolism), pyruvic acid plays a crucial role. Five metabolic pathways all involve a complicated series of enzyme reactions that result in pyruvate from sugar (or carbohydrate, in the form of glucose or fructose).
What exactly does aerobic respiration mean?Watch your pronunciation. Ayr-OH-bik Res-pih-RAy-shun a chemical reaction that uses oxygen to create energy from carbohydrates (sugars).
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Which organism is likely to carry out the process shown in the diagram?
CO, + H,O
Heat
Chloroplast
Mitochondrion
MASS
Respiration
-0₂
Sugar
ATP
Answer: Chloroplast
Explanation:
what term can we use to describe the relationship between a bearded seal and ice?
Answer:the trust each other and other words is inseparable
Explanation:
in guinea pigs, having black fur is a dominant trait. a student has a pet guinea pig with white fur. what can be concluded about the guinea pig?
There are various explanations behind the name. Historically, the term "Guinea" referred to a region of West Africa, and some people may have believed that the animal of dominant trait. , like the pigs , originated there.
What makes guinea pigs special?Guinea pigs make social, simple-to-tame, and long-lasting pocket pets. They make excellent pets due to their amiable temperament. They are highly intelligent as well. The most content guinea pigs are those who live with other guinea pigs.
What causes guinea pigs to smile?Balls, tunnels, and tubes are popular simple toys for guinea pigs. In guinea pig cages, tubes and tunnels make excellent sleeping and hiding places. Sometimes, especially when being stroked, guinea pigs do like human contact.
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Based upon previous lessons in Metric measurement, what would your mass be on the moon with low gravity if you weigh 100 lbs.? (Hint: 2.2lbs = 1kg) Use conversion factors. __4. What would be the volume (cm3 ) of the 3 marbles if they each have a radius of 0.75cm and were not in the graduated cylinder with water? Assuming that volume of a sphere is V = 4/3 πr3
Answer: 10.5kg
Explanation: 100x2.2/1kg
3
Run the sheep simulation a few times with various conditions. Adjust some of the variables including "reaping", amount of grass, and birthrate to see if you can make a more stable population. What is the highest carrying capacity of sheep possible? What conditions are required to allow this carrying capacity
Custom says you can keep about four ewes per acre. Such high numbers require optimal scenarios good soils and lots of inputs.
Carrying capacity is expressed as the number of animals that can graze over a period of time. In other words, carrying capacity is the amount of feed available to grazing animals. This is expressed as the number of available animal unit months or the number of animal units grazed in a month.
Capacity indicates how many animals a pasture can support over a period of time. Carrying capacity is a measure of available grass or fodder. Livestock density indicates how many livestock graze or use the land over a period of time. You can reasonably expect to have 6-10 sheep on 1 acre of pasture and up to 100 sheep on 30 acres of pasture.
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What is the order from least complex to most complex?
Answer:
Explanation:
The major levels of organization in the body, from the simplest to the most complex are: atoms, molecules, organelles, cells, tissues, organs, organ systems, and the human organism.
Why is mitosis a longer and more complicated process of cell division than binary fission.
Binary fission is a shorter, simpler procedure than mitosis because (B) mitosis contains checkpoints that must be reached in order for the cycle to continue.
Due to the absence of spindle formation and sister chromatids during binary fission, the mitotic process takes longer than that of binary fission. Asexual reproduction takes place in organisms through the processes of binary fission and mitosis. Eukaryotic creatures undergo mitosis, whereas prokaryotic cells undergo binary fission. Both processes result in the production of two daughter cells that are identical to one another and which duplicate DNA. Mitosis requires a nucleus since it occurs in eukaryotes, which are organisms with cell nuclei.
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Replication of the lagging strand of dna is accomplished by adding new __________. This creates ______________ on the lagging strand.
Replication of the lagging strand of DNA is accomplished by adding new short RNA primers. This creates Okazaki fragments on the lagging strand.
RNA primers are the short strands of RNA of few nucleotides that are essential to begin the synthesis of DNA at the lagging strand during replication. This primers is synthesized using the enzyme called primase. RNA primers provide the binding site for DNA Polymerase.
Okazaki fragments are the short strands of DNA that are synthesized from the RNA primers. These are discontinuous in nature. In prokaryotes the length of Okazaki fragments can be from 1000-2000 nucleotides, while in the eukaryotes, it can rage only for about 100-200 nucleotides.
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Based on the experimental results, which of the following describes the most likely defect in muscle cells of patients with type 2 diabetes?
Answer:
Skeletal Muscle Insulin Resistance Is the Primary Defect in Type 2 Diabetes.
Explanation:
Answer: Insulin does not activate its receptor.
Explanation: Type II Diabetes is vaguely a desensitization of insulin receptors to insulin, and it is shown in the first graph where glucose transport in the diabetic muscle cells is much lower than that of the control group.