Answer:
The water within the cell moved through the cell membrane into the solution with the lower water concentration.
Explanation:
According to this question, a scientist removed the leaf of a plant originally grown in a freshwater aquarium and placed it in a hypertonic solution containing 8% salt. Firstly, A HYPERTONIC SOLUTION is that solution which contains a higher solute concentration than that of the intracellular environment.
Due to this concentration gradient i.e. difference in concentration, OSMOSIS process will be triggered. Osmosis is the movement of water from the region of low solute concentration (the leaf cells) to a high solute concentration (the salt solution) via a semi-permeable membrane (cell membrane).
Therefore, osmotic process causes water to move from the leaf cells into the salt solution via the cell membrane. hence, causing the cells of the leaf to shrink.
Is it possible to have a cell without a membrane?
Answer:
Without the cell membrane, any chemical would be allowed to enter. Membranes are very important because they help protect the cell. Materials move across the membrane by diffusion. Diffusion is the movement of oxygen, nutrients, and other molecules.
Explanation:
Which event causes tides?
the blowing of the wind
the movement of warm and cool water
the interaction of the moon, the Sun, and Earth
the mixing of surface water and deep ocean water
Answer:
C
Explanation:
Tides occur when the Earth, the Sun, and the Moon are in a line. The gravitational forces of the Moon and the Sun both contribute to the tides. Spring tides occur during the full moon and the new moon.
The event that causes tides is the interaction of the moon, the Sun, and Earth.
Causes of tidesThe sea level can be affected by the interaction of the moon, the Sun, and Earth in a process called tides
Tides can be defined as the waves that moves through the ocean or sea, causing a rise or a fall in the levels of the sea as an interaction of the sun and the moon.
Therefore, the event that causes tides is the interaction of the moon, the Sun, and Earth.
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Which of the claims below does this model support? Select all the claims that are supported.
A. The number of trophic levels is unlimited
B. The number of trophic levels is limited, and typically is less than 10.
C. On average, about 10 percent of available energy is transferred from one trophic level to the next.
D. Among consumers in an ecosystem, first-level consumers have the most available energy
E The maximum amount of energy in a trophic level is 10,000 Joules.
Answer:
B. The number of trophic levels is limited, and typically is less than 10.
C. On average, about 10 percent of available energy is transferred from one trophic level to the next.
D. Among consumers in an ecosystem, first-level consumers have the most available energy
Explanation:
The number of trophic levels are limited. when one available energy is transferred from one trophic level to another trophic level, about 10 percent of energy is transferred whereas the rest of the energy about 90 percent is released in the form of heat energy. The first-level consumers have the most available energy due to higher biomass.
Answer:
Its b, c, d
Explanation:
i just did it.
Remember that a theory does not become a law because, by definition, a theory can always be altered whereas a law is fact and does not change.
Give an example of a theory in science:
Give an example of a scientific law:
Rank the cycles covered in order from I being least necessary to 4 being most necessary. Provide an explanation for your ranking.
I've used every single one of these strategies to rank fast, and they've never let me down.
Steal your competitors' keywords. ...
Get in the local pack. ...
Make sure your site is mobile friendly. ...
Organically include your location in your URL. ...
Write high-quality, long-form content.
GUYS PLEASE 1. What is the smallest unit of a molecular compound with the properties of that compound?
Answer:
An atom is the smallest particle of an element while the molecule is the smallest particle of a compound.
What is the consequence of global warming
Answer:
climate change, rising temperatures affecting wildfires, ocean warning etc.
Also PLEASE PLEASE PLEASE PLEASE give m brainiest i need it please I WOULD REALLY APPRECIATE IT ALOT
Explanation:
21. Which of the following statements about catabolic pathways is false?
a. Carbohydrates can feed into oxidative phosphorylation.
b. Glycogen can be broken down into glucose and feed into glycolysis.
c. Amino acids can feed into pyruvate oxidation.
d. Fatty acids can feed into the citric acid cycle.
from my point of view I think the answer should amino acid can fit into pyruvate oxidation
Carbohydrates can not feed into oxidative phosphorylation, firstly carbohydrates catabolize through glycolysis and the citric acid cycle and release electrons which feed into oxidative phosphorylation.
What are catabolic pathways?Acetyl-CoA, a chemical that "feeds" the citric acid cycle, can be produced from pyruvate (a byproduct of glycolysis), fatty acid -oxidation, ketone bodies, and amino acid metabolism.
The citric acid cycle is "cataplerotic" when molecules from other routes enter it for catabolism. Amino acids catalyze the breakdown of pyruvate.
Alanine, serine, glycine (through serine), and cysteine are among the amino acids with three carbon atoms that are transformed into pyruvate (the entry point for the citric acid cycle or gluconeogenesis)
Therefore, carbohydrates can feed into oxidative phosphorylation is false about the catabolic pathway, hence option A is correct.
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Where are you most likely to find ligaments in the body?
A joints between long bones
B joints between two or more irregular bones
C joints between a long bone and a short bone
D joints between muscles and bones
Answer:
( A. joints between long bones )
Answer: joints between long bones
Explanation:
Plz help!! I need help
Answer:
a} Allosteric regulation is just any form of regulation where the regulatory molecule (an activator or inhibitor) binds to an enzyme someplace other than the active site.The shape of the active site is changed, allowing substrate to bind at a higher affinity.
b) The molecules that bind cellular respiration enzymes act as signals, giving the enzyme information about the cell's energy state. ATP, ADP, and NADH are examples of molecules that regulate cellular respiration enzymes. ATP, for instance, is a "stop" signal: high levels mean that the cell has enough ATP and does not need to make more through cellular respiration.
c) This is a case of feedback inhibition i in which a product feeds back to shut down its pathways.
The Somatic Nervous System controls all our voluntary muscle movements.
Group of answer choices
True
False
Answer:
it is true true
Explanation:
Answer:
its true
Explanation:
can somebody give me an answer for this! QUICK!! I’ll give a thanks, 10 points and brainliest!
Answer: b
Explanation: Living organisms use energy released by respiration for their life processes. There are two types of respiration – aerobic (which needs oxygen) and anaerobic (which doesn't need oxygen).
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1. If a cell's organelle worked in an actual human factory and had the role of the electric generator,
which organelle would it be?
O mitochondrion
O lysosome
ribosome
Golgi apparatus
Answer:
mitochondrion
Explanation:
Which subatomic particle determines an element's chemical properties?
Proteus
Electron
Center
Nucleon
Answer:
Electron
Explanation:
I got a 100 on my test trust me its Electron
The subatomic particles which determine an element's chemical properties are electrons. Electrons are present in the specific orbitals in an atom. Thus, the correct option is B.
What is an electron?An electron is a negatively charged subatomic particle. An electron can be either bound to an atom or in free state. An electron which is bound to an atom in an orbital is one of the three types of particles present within the atom. Other primary subatomic particles which are present in an atom include protons and neutrons. Together, electrons, protons and neutrons form the nucleus of an atom.
Electrons were discovered by J.J. Thomson in 1897. The mass of an electron is 9.109×10⁻³¹ kilograms and the charge is −1.602176634×10⁻¹⁹ C.
Therefore, the correct option is B.
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Who wants brainliest? Answer those 2 questions
Answer:
This type of natural selection occurs when there are selective pressures working against two extremes of a trait and therefore the intermediate or “middle” trait is selected for. If we look at a distribution of traits in the population, it is noticeable that a standard distribution is followed: Example: For a plant, the plants that are very tall are exposed to more wind and are at risk of being blown over. The plants that are very short fail to get enough sunlight to prosper. Therefore, the plants that are a middle height between the two get both enough sunlight and protection from the wind.
This type of natural selection occurs when selective pressures are working in favour of one extreme of a trait. Therefore when looking at a distribution of traits in a population, a graph tends to lean more to one side: Example: Giraffes with the longest necks are able to reach more leaves to each. Selective pressures will work in the advantage of the longer neck giraffes and therefore the distribution of the trait within the population will shift towards the longer neck trait.
This type of natural selection occurs when selective pressures are working in favour of the two extremes and against the intermediate trait. This type of selection is not as common. When looking at a trait distribution, there are two higher peaks on both ends with a minimum in the middle as such: Example: An area that has black, white and grey bunnies contains both black and white rocks. Both the traits for white and black will be favored by natural selection since they both prove useful for camouflage. The intermediate trait of grey does not prove as useful and therefore selective pressures act against the trait.
Genes help to define who an individual is inside and out. In addition to visible traits like weight and eye color, psychological qualities such as personality traits, intelligence, risk of mental illness, and more have been linked to genetics.
Explanation:
This is what I could find.
How are chloroplasts like mitochondria?
Group of answer choices
They both contain DNA.
They are both found in animal cells.
They look alike.
They can both use energy from sunlight.
Answer: Chloroplasts, like mitochondria, produce energy for plant cells. Both mitochondria and chloroplasts have their own circular DNA and can function independently of the eukaryotic host cell. Hope this helps! I don't like giving direct answers I feel you should have a chance to learn.
Explanation:
Wetlands are natural parts of watershed systems. Wetlands provide benefits many benefits. Which of these is a way that wetlands directly benefit humans?
- provide nesting grounds for birds
- decrease erosion along shorelines
- reduce flooding in adjacent towns
- increase biodiversity near the ocean
wetlands help us by reducing flooding in adjacent towns
Answer:
the answer is c because it soaks up the water so it cant flood the towns
Explanation:
What kind of leaf is this
Can someone please answer these 3 questions pls.
ASAP PLEASE!
Stomata are tiny openings found in plant leaves. Specialized cells known as guard cells surround the stomata and open and close the openings. When it is very hot, plants may close their stomata to prevent water loss. When plants close their stomata, what else is affected?
Group of answer choices
Plants cannot take in water from the air.
Plants cannot release glucose made in photosynthesis.
Plants cannot take in the carbon dioxide they need for photosynthesis.
Plants cannot take in the sunlight they need for photosynthesis.
Answer:
Plants cannot take in the carbon dioxide they need for photosynthesis.
i did the same exact question (As you can see) and it even says correct. theres the proof.
How do changes in the environment influence ecosystem stability?
Role of Lipids and Carbohydrates - Type Lipid or Carbohydrate behind each question. 16. Provide long term energy storage. 17. Provide insulation and protection. 18. Short term energy supply 19. Composes cellulose in trees and plants. 20. Main component of cell membranes 21. Provide a waterproof coating on leaves and feathers. 22. Composes chitin exoskeleton of insects. 23. Act as chemical messengers in the body.
Answer:
16. Carbohydrates
17. Lipids
18. Carbohydrates
19. Carbohydrates
20. Lipids
21. Lipids
22. Carbohydrates
23. Lipids
Explanation:
Carbohydrates are organic molecules composed of carbon, hydrogen and oxygen. Carbohydrates can be classified into three types: monosaccharides (e.g. glucose), disaccharides (e.g., lactose), and polysaccharides (e.g., starch). Cellulose is a carbohydrate where many glucose rings chain together, while chitin is a polysaccharide consisting of chains of modified glucose molecules.
Lipids represent a diverse group of organic molecules that include, among others, fats, waxes, oils, hormones, etc. Lipids play a role by insulating (and protecting) the body. For example, there is a layer of fats beneath the skin which enables to maintain body temperature relatively constant. In animals, lipids constitute about 50% of the mass of cell membranes. These membrane lipids are mainly phospholipids, glycolipids and cholesterol. There are hormones that derive from lipids such as steroid hormones, which derive from cholesterol. Some examples of steroid hormones are testosterone, estrogen and cortisol.
Every single cell organism is able to survive because it carries out
Every single cell of an organism is able to survive independently because it carries out metabolic processes at its own.
What is Metabolism?Metabolism can be defined as the chemical changes or reactions which take place in a cell or an organism. These changes make energy and the compounds which cells and organisms need to grow, reproduce, and stay healthy.
Metabolism is divided into two classes: anabolism and catabolism. Anabolism involves the synthesis of a complex compound from simpler or smaller molecules or atoms. Catabolism involves the breakdown of a complex molecule into smaller and simpler ones.
Living organisms are able to perform the metabolic processes such as respiration, excretion, reproduction, and digestion which is a distinguishing factor from that of non-living organisms.
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How many characteristics are required for something to be considered alive?
If a cell's organelle worked in an actual human factory and had the role of the electric generator, which organelle would it be?
Answer: mitochondria
Explanation:
An electric generator produces energy to do work. A mitochondria produces ATP to power the cell.
How are the craters the same?
Answer:
The craters on what? Is there supposed to be a picture added to this?
Explanation:
Which model represents the intermediate step between glycolysis and the citric acid cycle?
Nuclear energy is currently used in which three kinds of vehicles?
O cars, submarines, spacecraft
O submarines, ships, spacecraft
O spacecraft, airplanes, cars
O airplanes, submarines, ships
Answer:
B: submarines, ships, spacecraft
Explanation:
Answer:
The answer is B - Submarines, ships, spacecrafts
Explanation:
I just took the Impact of Human Activity Unit Test. Person above me is correct
If excessive amounts of hot water are discharged into a lake, the immediate result will most likely be
Answer:
all of the wildlife within the lake would go into shock
Explanation:
wildlife such as fish go into shock very easily when it comes to change in temperatures! a goldfish dropped straight from it's baggy into a bowl is far more likely to go into shock and die than one who was adjusted to the water temp first.
All organisms utilize adenosine triphosphate (ATP) as their major source of energy. The molecules
of ATP and ADP (adenosine diphosphate) + P: (inorganic phosphate) form a cycle to allow for a
constant source of energy-rich ATP molecules.
Which of the following MOST accurately describes the role of ATP as a source of energy?
O ATP absorbs energy as it is converted into ADP + Pi.
ADP + P; release energy as they are converted into ATP.
O When ATP is converted into ADP + Pi , energy is released and used by the cell.
O When ADP + Pi are converted into ATP, energy is released and used by the cell.
Answer:
When ATP is converted into ADP + P energy is released and used by the cell.
Explanation: ATP contains energy, when a certain part breaks off it converts into ADP and releases energy for the cell tp use.
When ATP is converted into ADP + Pi , energy is released and used by the cell is the most accurately describes the role of ATP as a source of energy.
What is ATP?An organic substance called adenosine triphosphate (ATP) gives energy to a variety of biological functions in living cells, including muscular contraction, nerve impulse transmission, condensate dissolving, and chemical synthesis.
ATP is frequently referred to as the "molecular unit of currency" of intracellular energy transfer and is present in all known forms of life. It either transforms into adenosine monophosphate (AMP) or adenosine diphosphate (ADP) when absorbed in metabolic activities (AMP).
ATP is replenished by other processes. Every day, the human body recycles the equivalent amount of ATP to its own body weight. Additionally, it serves as a coenzyme and a precursor to DNA and RNA.
Therefore, When ATP is converted into ADP + Pi , energy is released and used by the cell is the most accurately describes the role of ATP as a source of energy.
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