You are examining the data from two time points taken in an experiment. At time 1 there was an extracellular concentration of Na of 115 mM outside the cell and 8mM inside the cell. An amino acid, lycine, is at 20mM outside and 40mM inside. At the second time measured Na is 100mM outside the cell and 23 mM inside the cell. Lycine is 15 mM outside the cell and 45mM inside. What is the best explanation

Answers

Answer 1

Answer:

See the answer below

Explanation:

The best explanation would be that both Na and the amino acid lycine are simultaneously diffusing (in bound form) from the outside to the inside of the cell.  

Considering the Na alone, one would see that the concentration outside the cell decreased in equal amount (15 mM) as the increase in the intracellular concentration of the same molecule.

Also considering the amino acid alone, the extracellular concentration increased by the same magnitude (5 mM) as the decrease in the intracellular concentration of the same molecule.

Hence, it could only be that both molecules bind together and diffused from the region of higher concentration (outside of the cell) to the region of lower concentration (inside).


Related Questions

In the plasma membrane, the phospholipid heads Group of answer choices are isotonic and do not respond to water. are hydrophobic and face inward, shielded from water. are hydrophilic and face inward, shielded from water. are hydrophilic and face outward toward the aqueous solution on both sides of the membrane. are hydrophobic and face outward toward the aqueous solution on both sides of the membrane.

Answers

Answer:

hydrophilic and face outward toward the aqueous solution on both sides of the membrane

Explanation:

The cell membrane is mainly composed of phospholipids, which are arranged in a lipid bilayer. In general, phospholipids consist of a glycerol unit, a phosphate group, and two fatty acids. In a lipid bilayer, hydrophilic (polar) phosphate heads are always oriented outwards and interact with surrounding water molecules; whereas hydrophobic fatty acid tails are oriented towards the center of the lipid bilayer away from water. It is for that reason that phospholipids are considered to be amphipathic molecules, where fatty acids confer hydrophobic properties and polar phosphate groups confer hydrophilic properties.

Which phrase describes a feature of groundwater?

Answers

Answer:

feeds rivers

Explanation:

Answer:

A

Explanation:

The difference between a plant with lateral buds and a plant with no lateral buds ​

Answers

terminal buds develop at the top of a stem, lateral buds develop on the sides

what is photosynthesis?


........​

Answers

Answer:

Photosynthesis is the process by which green plants and some other organisms use sunlight to synthesize nutrients from carbon dioxide and water.

Explanation:

Photosynthesis in plants generally involves the green pigment chlorophyll and generates oxygen as a by-product.

Explanation:

photosynthesis, the process by which green plants and certain other organisms transform light energy into chemical energy. During photosynthesis in green plants, light energy is captured and used to convert water, carbon dioxide, and minerals into oxygen and energy-rich organic compounds.[tex]\pmb{ }[/tex]

The place where photosynthesis occurs is the:
A. mitochondrial membranes.
B. thylakoid membrane.
C. plasma membrane.
D. ribosone.
it's not chloroplast.

Answers

Answer:

B

Explanation:

it's thylakoid membrane

Answer:

Thylakoid membrane.

Explanation:

Hope this helps!

why heart is vrey important.

Answers

Answer:

It is important because if our heart isn't there we people can't survive if for a second to our heart doesn't beats then we won't survive it's really important

The heart is important because it pumps blood around your body, delivering oxygen and nutrients to your cells and removing waste products. 

Can someone please help me with this biology question?

Answers

i think it is a not sure though

Answer:

I think it's C. The female parent hemophiliac..eta

but I would wait for a second opinion

Im confused can someone assist me ?

Answers

Answer:

recessive trait ,I think it

different seeds need different cultivation. justify in 200 words.

for 18 points​

Answers

Answer:

Cultivation is the process of growing crops. we need different seeds to cultivate different types of food. Similarly, different seeds need different cultivation. For eg: we grow potatoes in well-drained loam soil. But we grow rice in muddy soil. Every seed has a different way to produce food. They need different temperate or climates, different types of soil, to grow them. They have their own time or season to grow and produce food. If we try to grow plants or vegetables in the wrong season or the wrong process, then we can't get a good result. For eg: If we try to grow rice in drained soil then it will not give us a good result or if we try to grow potatoes in muddy soil we cant get our good result.

So, we can say that different seeds need different cultivation.

hope this helps. please mark me as brainlist

plzzzzzz hellppppp......​

Answers

The answers for 1 are…..
a) The process is called glucose homeostasis.
b) i) The hormone is Glucagon.
ii) The organ is the pancreases.
iii) The compound is is pyruvate?
Hope this helps, please give me brainliest:))

Gangguan pada sistem pencernaan sering kali terjadi karena kebiasaan buruk, seperti pola makan yang tidak teratur dan sembarangan. Salah satu dampak dari kebiasaan buruk yaitu penyakit maag atau gastritis. Coba jelaskan oleh Anda mengapa dapat terjadi?​

Answers

Answer:

i don't know answer of this question

Answer:

Periode yang lama tanpa makanan cenderung menyebabkan refluks asam, gastritis, dan asam lambung. Jumlah cairan pencernaan yang berlebihan dapat mengikis lapisan usus Anda dan menyebabkan bisul

Give a reason why lack of roughage in diet often lead to constipation?​

Answers

Answer:

Roughages increase fecal volume and promote peristalsis

Explanation:

Constipation refers to the condition in which bowel evacuations occur infrequently, leading to health problems. Some of the most common causes of constipation include 1-insufficient intake of dietary fibers or roughages, 2-poor hydration, 3-lack of physical exercise, 4-abuse of laxatives, etc. Dietary fibers are divided into two classes based on their water solubility: soluble and insoluble. These fibers represent the part of plant foods that the body can't digest, which absorbs and retains water (soluble fibers) as foods pass through the bowel and create bulk (insoluble fibers), thereby leading to regular bowel habits.

fundamental molecules produced in photosynthesis is

(a) glucose (b) amino acids (c) fatty acids (d) nucleotide​

Answers

glucose is the fundamental molecules produced in photosynthesis

plz mark me as brilliant answer

Science is not a process, but just a body of facts that
accumulates overtime.
TRUE
FALSE

Answers

Answer:

False

Explanation:

Science is more about gaining knowledge than it is about simply having knowledge. Science is a way of learning about the natural world that is based on evidence and logic. In other words, science is a process, not just a body of facts. Through the process of science, our knowledge of the world advances.

A small size is advantageous for marine organisms because it ________. increases the surface area to volume ratio that in turn reduces frictional resistance to sinking increases the ability to absorb nutrients increases the ability of wastes to diffuse out of the organism All of the above

Answers

Answer:

increases the ability of wastes to diffuse out of the organism

Explanation:

A small size of an organism is advantageous for marine organisms because it increases the ability of wastes to diffuse out of the body of organism. Small size of an organism produces less amount of waste material and these organism does not need a very special and complex excretory system so simple diffusion of waste material occurs from the body in order to clean the body.

How many hydrogen atoms are there in the molecule H2S04?
O A. 1
B. 3
C. 4.
O D. 2

Answers

Answer:

two hydrogen atom

Explanation:

Sulfuric Acid, H2SO4 is a chemical compound made up of two hydrogen atom, one sulfer atom, and four oxygen atoms.

What maintains the concentration gradient across
respiration membranes?
A. Ventilation
B. Cartilage
C. Spiracles
D. Cohesion

Answers

spiracles which is c

Explain how 2 polynucleotides can twist helically around each other to form a double helix of DNA?

Answers

Explanation:

The antiparallel arrangement of the two strands is what causes the twist. Because the strands run in opposite directions, they pull the sides of the molecule in opposite directions, causing the whole thing to twist around itself. Most naturally occurring DNA spirals clockwise.

A technique that can be used to separate proteins based primarily on the presence of non-polar residues on their surface is called A) ion-exchange chromatography. B) gel filtration chromatography. C) affinity chromatography. D) gel electrophoresis. E) hydrophobic interaction chromatography.

Answers

Answer:

E) hydrophobic interaction chromatography.

Explanation:

Hydrophobic interaction chromatography (HIC) is a methodology used to separate protein molecules depending on their hydrophobicity. HIC enables the separation and purification of proteins by using a reversible interaction between the target protein and the hydrophobic ligand of a HIC resin such as, for example, methacrylate-based beads. This interaction is influenced by the running buffer (high salt concentrations favor hydrophobic interactions). HIC enables the separation of proteins under low denaturation conditions, thereby preserving their biological functions.

The property of matter that allows a solid to flow is____.


1. Sublimation

2. Conductivity

3. Subduction

4. Plasticity

Answers

Answer:

hey mate I am 90 per cent sure that ans is option 2 ) conductivity

b3coz

Conductivity in metal is a measure of a material's ability to transmit heat, or electricity (or sound). The reciprocal of conductivity is resistance, or the ability to reduce the flow of those. ... Metals conduct electricity by allowing free electrons to move between the atoms

Answer:

2. Conductivity

Explanation:

Conductivity allows atoms to flow in solid by passing on vibration energy when any form of energy is applied.

A bat is a mammal even though it flies in air. give reason​

Answers

Answer:

Bats are mammals. As the bats are warm blooded, and they can fly like the birds, bats are known as flying animal. Means they have two unique characteristics. They can fly like birds, and can give birth and suckle to their young ones like animals.

Answer:

because it has wings

Explanation:

the answer is simple

bat fly

blue whale swim

but both are mammal

Please help! Show work please!

Answers

Answer:

7. 18m = 1800 cm = 18×10² cm

8. 23 dm = 0.23 hm

9. 5 cm = 50 mm

10. 5.3 hL = 530000 mL

11. 167 mm = 0.167 m

12. 1.589 daL = 158.9 dL

13. 35.45 mg = 0.0003545 hg

14. 43 dam = 4300 dm

15. 500 kg = 500000 g

16. 700mL = 0.0007 KL

17. 130 dag = 1.3 kg

18. 59.932 mm = 59.932 × 10 –⁵ km = 59.932 × 10^–5 km

* Note; 1 m —> 100 cm1 dm —> 0.001 hm1 cm —> 10 mm1 hL —> 100000 mL = 10⁵ mL1mm —> 0.001 m1 dal —> 100 dL1 mg —> 0.00001 hg = 10^–5 hg1 dam—> 100 dm1 kg —> 1000 g1 mL —> 0.000001 kL = 10^–61 dag —> 0.01 kg1 mm —> 0.00001 km = 10^–5 km

I hope I helped you^_^

Due RN pls help!!!


Summarize the nervous system’s influence on the respiratory system.


a. It stimulates pathogen response.



b. It regulates breathing rate.



c. It controls muscle contraction.



d. It regulates heart rate.

Answers

Answer:

C

Explanation:

It controls muscle contraction

Answer:

C

Explanation:

Breathing pretty much requires complex interactions of central nervous system with the respiratory system. Therefore as you breathe muscle contraction occurs making the nervous system and respiratory system work hand in hand.

hope this makes sense.

:)

Xerophytic plants have thick stem why.​

Answers

Answer:

to store large masses of water for survival since they live in areas of little water.

What is the purpose of a Punnett square?

Answers

Answer:

Punnett square is a chart that allows you to determine the expected percentages of different genotypes in the offspring of two parents

A Punnett square is a chart that allows you to determine the expected percentages of different genotypes in the offspring of two parents. A Punnett square allows the prediction of the percentages of phenotypes in the offspring of a cross from known genotypes.

in guinea pigs long hair is dominant over short hair. describe the results of a cross between a long haired, heterozygous guinea pig with a short haired guinea pig

Answers

Answer:

50% chance of long hair heterozygous

50% chance of short hair

Explanation:

    L   l

l   Ll   ll

l   Ll   ll            <------ punnet square

L = dominant long hair

l = recessive short hair

50% chance of long hair heterozygous

50% chance of short hair

the difference between the cellular make-up of a living organism and an aluminum cari is the ___

Answers

Answer:

The difference between the cellular make - up of a living organism and aluminum can is the ability to use energy .

sustitución de una es estructura que el animal ha perdido​

Answers

Answer:

we'll need a translator to get what you expressing

What is absorption?
A. getting rid of the parts of the food that the body couldn't
use
B. absorbing nutrients into the blood stream from the food
that was eaten
C. the breaking down of the food that has entered the body
D. putting food and drinks into your body

Answers

Answer:

option(B)

Explanation:

Absorbing nutrients into the blood stream from the food  that was eaten is called absorption.

What is science DO NOT COPY AND PASTE!!!

Answers

Accorfing to me science is all about logic and imagination.First, imaginating and putting own views then finding reasons behind it and proving.........

Answer:

Science is the study of both living and non-living things that are present in the huge diversity in this mysterious yet unique world.

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