Explain how concentration gradients across membranes are maintained

Answers

Answer 1

Answer:  

The idea of concentrations and gradients within them is important when understanding the movement of substances across cell membranes. The more particles there are in a certain volume, the more concentrated those particles are. A solution with a low solute concentration has a high water concentration, and a high water potential.


Related Questions

The phylogenetic tree shown shows the evolutionary relationships among finches
What can be concluded from this diagram?
A. Warbler finches and cactus finches are the most closely related.
B. Tree finches and warbler finches are the least closely related.
C. No finches have a common ancestor.
D. Tree finches and cactus finches have a common ancestor.

Answers

I’m going to say d or b. But mainly D
Hope this helps :)

The phylogenetic tree shown shows tree finches and cactus finches have a common ancestor. So, the correct option is D.

What is Phylogenetic tree?

A branching diagram that depicts the evolutionary relationships between a set of creatures, species, or genes is called a phylogenetic tree, sometimes referred to as an evolutionary tree. On the basis of the similarities and contrasts in their physical or genetic traits, it depicts the evolutionary history of these groups.

We can draw the conclusion that cactus and tree finches are more closely connected to one another than they are to any other finch species on the tree. The diagram does not indicate if tree finches and warbler finches are more or less closely related to one another, or whether cactus finches and warbler finches are.

Therefore, the correct option is D.

Learn more about Phylogenetic tree, here:

https://brainly.com/question/30820701

#SPJ2

GIVING BRAINLIEST!!!!!!

describe how the intestines, liver, stomach, and pancreas all work together.

Answers

Answer:

They work together in the digestive system to make the food originate from the esophagus to the anus.

Explanation:

Answer:

Glands in your stomach lining make stomach acid and enzymes that break down food. Muscles of your stomach mix the food with these digestive juices. Your pancreas makes a digestive juice that has enzymes that break down carbohydrates, fats, and proteins, along with your liver that makes a digestive juice called bile, which helps digest fats and some vitamins. The pancreas delivers the digestive juice to the small intestine through small tubes called ducts. Bacteria in your small intestine make some of the enzymes you need to digest carbohydrates. It also absorbs water with other nutrients. Bacteria in your large intestine help break down remaining nutrients and make vitamin K NIH external link. Waste products of digestion, including parts of food that are still too large, become stool.

Some extra info:

Stomach. Glands in your stomach lining make stomach acid and enzymes that break down food. Muscles of your stomach mix the food with these digestive juices.  

Pancreas. Your pancreas makes a digestive juice that has enzymes that break down carbohydrates, fats, and proteins. The pancreas delivers the digestive juice to the small intestine through small tubes called ducts.

Liver. Your liver makes a digestive juice called bile that helps digest fats and some vitamins. Bile ducts carry bile from your liver to your gallbladder for storage, or to the small intestine for use.  

Small intestine. Your small intestine makes digestive juice, which mixes with bile and pancreatic juice to complete the breakdown of proteins, carbohydrates, and fats. Bacteria in your small intestine make some of the enzymes you need to digest carbohydrates. Your small intestine moves water from your bloodstream into your GI tract to help break down food. Your small intestine also absorbs water with other nutrients.

Large intestine. In your large intestine, more water moves from your GI tract into your bloodstream. Bacteria in your large intestine help break down remaining nutrients and make vitamin K NIH external link. Waste products of digestion, including parts of food that are still too large, become stool.  

Hope this helps, have a great day/night!

* will give brainliest*
Name an animal that both directly and indirectly benefits humans. Explain your response.

Answers

Answer:

honeybees

Explanation:

we directly use the honey they produce and we also depend on them to pollinate crops. Bees also pollinate other plants that porvide several indirect benefits to humans

Answer:

My answer: Honeybees

Honeybees give us honey, we directly use honeybees to gather their honey. Honeybees indirectly pollinate crops, flowers, and other various plants.

Explanation:

PLATOs answer: Honeybees both directly and indirectly benefit humans. We directly use the honey they produce, and we also depend on them to pollinate crops. Bees also pollinate other plants that provide several indirect benefits to humans. These benefits include reducing carbon dioxide in the atmosphere and providing food for the herbivores on which we depend.

Which of the following lists the hierarchy of life from MOST complex to LEAST complex?


A) organism, organ system, organ, tissue, cell


B) cell, tissue, organ, organ system, organism


C) organ system, organism, cell, organ, tissue

Answers

Answer:

a

Explanation:

PLEASE HELP I WILL MARK BRAINLIEST‼️
EXTRA POINTS‼️‼️‼️

Answers

Answer:

15200

Explanation:

76,000 divided by 5

If a DNA sequence reads 3 – ACTTGC – 5, then what is the matching sequence on the opposing strand?

Answers

Answer:

5' - TGAACG - 3'

Explanation:

Adenine base pairs with Thymine

Guanine base pairs with Cytosine

Give three examples of commons, and then list some resources available from each. ​

Answers

Answer:

air, water, and a habitable earth

Explanation:

the resources are oxygen from air, fish from water, and fruits, vegetables, meat, and herbs that can help with health.

What were the results Mendel consistently identified in his experiment

Answers

Answer:
Developed the model of heredity that now bears his name by experiments on various characteristics of pea plants:

Based on the diagrams above, what is the percent change in the amount of runoff in urban areas compared to forested areas?

Answers

Answer:

It’s D

Explanation:

450 % change occur in the amount of runoff in urban area as compared to forest area.

Percent change

450 % is the percent change in the amount of runoff in urban areas as compared to forested areas. We can see in the diagram that in forest area only 10% is runoff water while some is absorbed by the soil and other evaporated in the air.

While on the other hand, in urban area 55% of water leaves the area through runoff which is 45 % higher than forest area so when we put these values in the formula of percent change we get 450 % so we can conclude that 450 % change occur in the amount of runoff in urban area as compared to forest area.

Learn more about runoff here: https://brainly.com/question/3228016

Learn more: https://brainly.com/question/23056991

The mass of an object doubles. What happens to the gravitational force between it and another object whose mass stays the same, assuming they remain the same distance apart?

A. The amount of the gravitational force quadruples.
B. The amount of the gravitational force doubles.
C. The amount of the gravitational force decreases by one-half.
D. The amount of the gravitational force remains the same.

Answers

Answer:

part b is the right answer

Explanation:

The amount of the gravitational force doubles

When the mass of an object doubles; The amount of gravitational force between it and another object whose mass stays the same doubles.

Gravitational force

According to Newton's law of universal gravitation;

The gravitational force between two objects is directly proportional to the product of their mass and Inversely proportional to the square of their distance apart.

On this note, since the mass of the other object is kept constant; the gravitational force is doubled when the mass of the object is doubled.

Read more on gravitational force;

https://brainly.com/question/19050897

1. Explain "haploid"
pairs.

Answers

Answer:

Haploid describes a cell that contains a single set of chromosomes. ... In humans, gametes are haploid cells that contain 23 chromosomes, each of which a one of a chromosome pair that exists in diplod cells. The number of chromosomes in a single set is represented as n, which is also called the haploid number.

Use your knowledge of the mechanism of photosynthesis and the data presented in the chart to determine which of the statements is a correct explanation for the students' data.Group of answer choicesCup 2 had the highest rate of photosynthesis because it had the highest ratio of disks floating to wattage of light.Cup 1 had a low rate of photosynthesis because 0.5 grams of baking soda did not provide a sufficient amount of CO2.Cup 3 had the same rate of photosynthesis as Cup 1 because they had the same ratio of disks floating to wattage of light.Cup 4 had the lowest rate of photosynthesis because it had the least CO2.

Answers

Answer:

D. Cup 4 had the lowest rate of photosynthesis because it had the least CO2.

Explanation:

Carbondioxide gas is the main reactant for the process of photosynthesis which decides the production of food in the leaves. If plants has high amount of carbondioxide gas and water so in the presence of sunlight it produces more food in the leaves in the form of glucose so we can conclude that the  lowest rate of photosynthesis occurs due to presence of least concentration of carbondioxide gas in the cup 4.

How does an amino acid-based hormone changes a cells activity

Answers

Answer:

such as glucagon, bind to membrane-bound receptors. The binding of the hormone triggers a signal transduction pathway, a process of molecular changes that turns the hormone's extracellular signal into an intracellular response.

Explanation:

How does an amino acid-based hormone changes a cells activity ?

The majority of amino acid-based hormones, such as glucagon, bind to membrane-bound receptors. The binding of the hormone triggers a signal transduction pathway, a process of molecular changes that turns the hormone's extracellular signal into an intracellular response.

I really hope this helps!! Have an amazing day <3

What kingdoms are Protist's NOT part of?​

Answers

Answer:

Eukaryote; isn't a plant animal, or fungus

Explanation:

Because Protist has many organisms that are related to the other kingdoms of animals, plants, and fungi. Protists is a word that is know used as a "eukaryote that isn't a plant, animal, or fungus."

Dna Aca ata tag ctt ttg att

Answers

Answer:

UGU UAU AUC GAA AAC UAA

Explanation:

Hello There!

These are the transcription pairings

Adenine (A) to Uracil (U)

Thymine (T) to Adenine (A)

Cytosine (C) to Guanine (G)

Guanine (G) to Cytosine (C)

So given the DNA strand ACA ATA TAG CTT TTG ATT

We pair each nucleotide with its matching nucleotide (parings are provided above)

A to U

C to G

A to U

A to U

T to A

A to U

T to A

A to U

T to A

A to U

G to C

C to G

T to A

T to A

T to A

T to A

G to C

A to U

T to A

T to A

The finished mRNA strand looks like this

UGU UAU AUC GAA AAC UAA

Xylem and phloem carry out specific functions in a plant. Which of the following terms does not apply to either xylem or phloem? a. Specialized cells b. Eukaryotic cells c. Differentiated cells d. Prokaryotic cells

Answers

D. Prokaryotic cells

What evidence can scientists collect from body fossils? Select all correct answers
the fossils can tell scientists about the size and shape of the organism
scientists can learn about the daily activity of the organism
By comparing the fossil to a living organism, scientists can determine the group of living thing the
fossil was part of
Scientists can learn about how the organism functioned when it was alive

Answers

Answer:

all of them

Explanation:

The shape, size, daily activities, structure, and function of an organism can be determined by the fossil. Hence all options are correct.

What is a fossil?

Any surviving remains, impression, or evidence of a once-living thing from a previous geological epoch is referred to as a fossil. Examples include exoskeletons, bones, shells, animal or microbe imprints in stone, items preserved in amber, hair, petrified wood, and DNA traces. The fossil record is the collection of all fossils.

The study of ancient plants and animals that have subsequently faced extinction or have evolved into present species is made possible by the discovery of fossils.

Important evidence for evolution and the environmental adaptability of plants and animals can be found in fossils. Hence, all options are correct.

Learn more about fossils, here:

https://brainly.com/question/6867325

#SPJ2

Hey everyone I will be choosing brainliest for the best answer and pls no scamming.

How to do a stoichiometry problem? I have trouble with them.

Answers

Answer:

There are four steps in solving a stoichiometry problem:

Write the balanced chemical equation.

Convert the units of the given substance (A) to moles.

Use the mole ratio to calculate the moles of wanted substance (B).

Convert moles of the wanted substance to the desired units.

Explanation:

(https://socratic.org/questions/how-to-solve-the-problems-of-stiohiomerty-what-is-the-formula-of-stiohiomerty) This site will give you all the info you need on how to solve it! Gives examples too!

It’s b because I took the test

4. A student studying interactions between body systems constructs this table. The
student plans to fill out the table with phrases that describe an interaction between
each pair of systems.
Skeletal Circulatory Muscular Digestive Respiratory Urinary
Nervous
Skeletal
Circulatory
Muscular
Digestive
Respiratory
Urinary
Nervous
х
Which of these phrases could be placed in the position marked with an X?

Answers

Answer:I think it’s “provides nutrients to muscle cells

Explanation:

*lf a strand has 35% adenine, what percent will be cytosine?

Answers

Answer:

35% - adenine

35% - thymine

Then you have cytosine which is paired with guanine and they will both have a percent of 15.

15% - guanine

15% - cytosine

Explanation:


What is the genotype ratio for the offspring in this Punnett Square?

help

Answers

Answer:

1:2:1

Explanation:

When we say genotype, we are talking about the different type of allele combinations. Phenotype is when you are looking at dominant recessive ratios.

What is the genetic relationship between individuals Level 1 - 2 and Level
III - 4

Answers

Answer:

Grandmother - grandson.

Explanation:

The genetic relationship between individuals Level 1 - 2 and Level  III - 4 is grandmother - grandson because the gap between individuals is two generations. The circular shape represents male while on the other hand, the square shape represents female individual. So we know that in the first level, the second individual is square which means it is a female while on the other hand, in the third level, the fourth individual is circular that represents male so it is a relationship of grandmother - grandson.

The punnets square shown presents a cross between two piranha. Both parents have large teeth. According to the chart which combination describes the offspring expected for the cross?
A) 50% large toothed 50% small toothed
B)75% small toothed and 25% large toothed
C) 75% large toothed and 25% small toothed
D) 100% large toothed

Answers

The answer would be c :)

Match the definition to the correct ecological level.

Question 1 options:

Biome


Biosphere


Ecosystem


Community


Individual


Population

1.
One organism

2.
A group of organisms of the same species in the same area.

3.
All the living things in an area.

4.
Biotic and abiotic factors in an area.

5.
All the ecosystems in a climatic region.

6.
All areas that can support life.

Answers

Answer:

1.

Individual

2.

Population

3.

Community

4.

Ecosystem

5.

Biome

6.

Biosphere

Definition to the correct ecological level are:

1. Individual is one organism.

What is an individual?

The individual is a single organism or a specific species.

2. Population is a group of organisms of the same species in the same area.

What is a population in ecology?

A population is a group of organisms of the same species in the same area.

3. All the living things in an area is called Community.

What is a Community in ecology?

A community is a group of different populations interacting in an ecosystem.

4. Ecosystem is biotic and abiotic factors in an area.

What is an ecosystem in ecology?

An ecosystem is a geographic area where plants, animals, and other organisms, as well as weather and landscape, work together to form a bubble of life.

5. All the ecosystems in a climatic region is called Biome.

What is Biome?

A biome is an area classified according to the species that live in that location.

6. Biosphere support all areas that can support life.

What is Biosphere?

The biosphere is a global ecosystem composed of living organisms (biota) and the abiotic (nonliving) factors from which they derive energy and nutrients.

To learn more about the ecosystem click here:

https://brainly.com/question/1673533

Un estudiante presenta una condicion especial llamada gigantismo su altura es mucho mayor que la de los compañeros de la misma edad y se descarta que la causa sea un problema heredero podemos suponer que este estudiante tiene insuficiente de la hormona esta hormona no ingresa a las celulas en su mecanismo de accion por se.

Answers

La respuesta correcta para esta pregunta abierta es la siguiente.

A pesar de que se te olvidó incluir las opciones o incisos para responder a tu pregunta, podemos comentar lo siguiente, basándonos en nuestro conocimiento sobre la materia.

Podemos pensar que la hormona que no produce este niño que sufre de gigantismo es la hormona llamada somatotropina. Esta hormona es muy importante durante el crecimiento y desarrollo del niño en la infancia porque secreta la adenohipófisis, una glándula vital para el correcto y proporcionado desarrollo en la etapa de la niñez.

Entonces, si no hay una secreción correcta de la hormona somatotropina, ésta hace que el niño desarrolle la condición llamada gigantismo.

Entonces podríamos decir lo siguiente.

Un estudiante presenta una condición especial llamada gigantismo su altura es mucho mayor que la de los compañeros de la misma edad y se descarta que la causa sea un problema heredero podemos suponer que este estudiante tiene insuficiente de la hormona de crecimiento o somatotropina. Esta hormona no ingresa a las células en su mecanismo de accion por ser una derivación de aminoácidos.

Question 23 of 35 Which phrase describes a plant spore but not a plant seed? A. Made of multiple cells B. Made in flowers C. Made of a single cell D. Made in cones

Answers

Answer:

the answer is C) made of a single cell

What does glycolysis produce for each glucose? (1 point)
1 ATP, 3 NADH, and 1 FADH2
2 ATPs and 2 NADH
4 ATPS, 6 NADH, and 2 FADH2
3 NADH and 1 FADH2

Answers

Answer:

2 ATPs and 2 NADH

glycolysis produce for each glucose?

Answer:

#2  -  "2 ATPs and 2 NADH"

Explanation:


Translation occurs in the _______
of a eukaryotic cell.
A ribosome
B chromosome
C cytosome.
D autosome

Answers

Answer:

A

Explanation:

D isn't a real thing in the cell

It’s “A” aka Ribosome

Bc Translation Occurs In A Structure Called The Ribosome, Which Is A Factory For The Synthesis Of Proteins. The Ribosome Has A Large Subunit And Is A Complex Molecule Composed Of Several Ribosomal RNA Molecules And A Number Of Proteins.

Your Welcome And Have A Great Great Rest Of Your Day :D

What is the primary cause of groundwater shortage?
A)
pollution
B)
use exceeding the rate of replenishment
C)
lack of precipitation
D)
all of the above

Answers

Answer:

D. All of the above

Explanation:

Pollution makes ground water un-usable

Rate of Replenishment causes droughts, at the rate we use it.

Lack of precipitation results in little rainfall, making no groundwater

Answer:

D

Explanation:

PLEASE HELP ASAP!!!!!!!!!!!!!!!!!!! Will mark brainliest!!!!!!!!!!!!!!


According to the cladogram which of the following is the derived characteristic shared by amphibians and reptiles


bony skeleton

lungs

Answers

Answer:

C.) lungs

Explanation:

In the cladogram, amohibians and reptiles are seperated under the 'lungs' branch.

Therefore, having lungs is a shared characteristic among amphibians and reptiles

According to the cladogram bony skeleton and lungsare the derived characteristic shared by amphibians and reptiles. Hence the correct option is C.

A bony skeleton is a derived characteristic shared by both amphibians and reptiles. Unlike more ancient organisms like cartilaginous fish, which have a skeletal structure made of cartilage, both amphibians and reptiles have evolved to possess a bony skeleton composed of hard, calcified bones. This bony framework provides greater support and protection.

Lungs are another derived characteristic shared by amphibians and reptiles. As vertebrates that have adapted to life on land, both groups require a reliable respiratory system to breathe air. Lungs are specialized respiratory organs that enable these organisms to extract oxygen from the air and release carbon dioxide.

Hence the correct option is C.

The given question is incomplete, the complete question is

According to the cladogram which of the following is the derived characteristic shared by amphibians and reptilesbony skeletonlungs.

a. Bony skeleton

b. Lungs

c. Both a and b

d. Neither a nor b

To know more about amphibians here

https://brainly.com/question/27961653

#SPJ2

Other Questions
HELP PLEASE ILL MARK BRAINEST IF UR RIGHT. Gems math which is greater 20.903 or 2.209 I had trouble plotting the midpoint lol but can someone plz help me :c You have just heard that a relative of yours is in hospital for a minor operation. You are expected to write a letter intended to express concern.-say how sorry you are-ask about the patient's wellbeing-give some light headed news from home The dot plots show the total number of hours students spent on homework for one week attwo different schools.Which statement is supported by the information in the dot plots? What situation made you feel so worthless? Please help The position of masses 4kg, 6kg, 7kg, 10kg, 2kg, and 12kg are (-1,1), (4,2), (-3,-2), (5,-4), (-2,4) and (3,-5) respectively. Determine the position of the center of mass of this system? HELP BRAINLIEST!Which of the following is most critical for the advancement of multimedia as an industry?O innovation in software and hardware developmento better training for artists and designersO making computer software companies open for public investmentO advances in 3D computer coding development an airplane traveled 1000 miles in 2 hours how long would it take that plane to travel 5000 miles if it travels at the same speed5hours 6hours7hours10hours 12hours Together Alex and Lily have 12 cats. If Alex has 3, write an equation to find out how many lily has. Create a class schedule for you in high school. What classes would youwant to take? You must have between 6-8 classes, with a short 1-2sentence description of each. You can use block scheduling(A day/Bday)or regular (all classes in one day) and you must be in school for atleast 7 hours per day. You can also choose the times for your classes2. You will also create 2-3 new electives that you want to see in the school in the future.3. What should the maximum number of kids per class? Justify your answer in a sentence or 2 Do you think that the federal government ought to have offered compensationin money or landformer slaves? The roots of a quadratic function are 6 and -2. Which is a possible vertex of the function?A (-2,-4)B (-8,-2)C (-2,0)D (-8,4) Is (2,1) a solution to y> 2x-1 What is the surface area of the rectangular pyramid Logos is an appeal to logic, Ethos is an appeal to Ethics and Pathos is an appeal toemotion.Read the statement below and choose which of the following this is an example of:"In Congo last year, I visited a home for orphaned street kids who were terriblymangled and disfigured by polio."How is Ben Affleck trying to appeal to the audience? Why do you think he is usingthis tactic? (Ben Affleck Congo speech) A car travels for 10s at a steady speed of 20 m/s along a straight road. The traffic lights ahead change to red, and the car slows down with a constant deceleration, so that it halts after a further 8s. Can you please help me i don't know how to do this plz help Samantha is identifying different minerals she found on vacation which property of the mineral will Samanthabe LEAST able to determine by using only her cyes?A colorB. hardcoCluster