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ratelena [41]
3 years ago
7

A red blood cell placed in pure water would ________. Select one: a. shrink b. neither shrink nor swell c. swell initially, then

shrink as equilibrium is reached d. swell and burst
Biology
1 answer:
tatuchka [14]3 years ago
7 0

Answer:

D (Swell and Burst)

Explanation:

Pure water contains a very low concentration of solute materials, hence it is regarded as HYPOTONIC. Since the red blood cell contains intracellular fluid that contains more solutes than the extracellular pure water it is placed in, it is said to be HYPERTONIC in comparison with the pure water.

This difference in concentration between the extracellular solution (pure water) and the intracellular fluid (red blood cell) called CONCENTRATION GRADIENT facilitates the movement of water by OSMOSIS. Osmosis is the process whereby water moves across a semi-permeable membrane from a region of low solute concentration to a high solute concentration.

Based on this osmotic gradient, water moves from the extracellular solution into the cell, causing it to swell and eventually burst as a result of excessive water intake.

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IceJOKER [234]

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7 0
2 years ago
when you perform a dihybrid cross with two heterozygous individuals for the two traits, what is the expected phenotypic ratio?
Sergeu [11.5K]

Answer:

9:3:3:1

Explanation:

A dihybrid cross tracks two traits. Both parents are heterozygous, and one allele for each trait exhibits complete dominance *. This means that both parents have recessive alleles, but exhibit the dominant phenotype. The phenotype ratio predicted for dihybrid cross is 9:3:3:1. (There's a calculator on google that show the outcomes just to let ya know) hope it's correct .

8 0
3 years ago
Read 2 more answers
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koala

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8 0
3 years ago
The pointer is indicating the virus's _____.
Doss [256]
The pointer is indicating the virus virus's genome.

Happy Studying! ^0^

7 0
3 years ago
1. Define diffusion.
anygoal [31]

Answer:

1) Diffusion is net movement of anything (e.g., atom, ions, molecules) from a region of higher concentration to a region of lower concentration.

2) Osmosis is the spontaneous net movement of solvent molecules through a selectively permeable membrane into a region of higher solute concentration, in the direction that tends to equalize the solute concentrations on the two sides

3) One big difference between osmosis and diffusion is that both solvent and solute particles are free to move in diffusion, but in osmosis, only the solvent molecules (water molecules) cross the membrane.

4)  Molecules tend to move from areas of higher concentration to areas of lower concentration.

I'm sorry, but I don't know how to do part #2. I think it's a lab.

4 0
3 years ago
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