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3 years ago

Why is it Important that cell membrane contain openings into cell ?

Biology

1 answer:

Ira Lisetskai [31]3 years ago

6 0

Answer:

Embedded in the lipid bilayer are large proteins, many of which transport ions and water-soluble molecules across the membrane. Some proteins in the plasma membrane form open pores, called membrane channels, which allow the free diffusion of ions into and out of the cell.

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1. ________ refers to the minimum amount of stimulus energy required to be detected 50% of the time. a. absolute threshold b. di

Tatiana [17]

Answer:Absolute Threshold

Explanation:

The sensitivity of any given sensory system to the relevant stimuli can be expressed as an absolute threshold

4 0

3 years ago

Which will cool down faster overnight, the water in the pool of the air above the water pool?

galben [10]

Answer:

the air above the water would cool down faster

6 0

3 years ago

Which organism is the most specialized

Vlad [161]

The organism that is most specialized would be the sponge

5 0

3 years ago

6. When a mutation causes a genotype change in offspring, the mutation most likely occurred in which type of cell

vladimir2022 [97]

6. When a mutation causes a genotype change in offspring, the mutation most likely occurred in which type of cell
from the parent?

Gamete

7 0

2 years ago

In corn, small pollen (sp) is recessive to normal pollen (sp+) and banded necrotic tissue, called zebra necrotic (zn), s ssive t

alex41 [277]

Answer:

Option B

Explanation:

Please see the attached image

Given -

Allele for small pollen is "sp"

Allele for normal pollen is "sp+"

and "sp+" is dominant over "sp"

Allele for zebra necrotic tissue is "zn"

Allele for normal necrotic tissue is "zn+"

and "zn+" is dominant over "zn"

Cross is carried out between

sp+ sp zn+ zn x sp+ sp zn+ zn

The gametes of the parent cells are -

sp+ zn+, sp+zn, spzn+, spzn

The cross would be as follows

sp+ zn+ sp+zn spzn+ spzn

sp+ zn+ sp+ sp+ zn+ zn+sp+ sp+ zn+ znsp+ sp zn+ zn+ sp+ spzn+ zn

sp+zn sp+ sp+ zn+ znsp+ sp+ zn znsp+ sp zn+ zn sp+ sp zn zn

spzn+ sp+ sp zn+ zn+sp+ sp zn+ znsp sp zn+ zn+ sp sp zn+ zn

spzn sp+ sp zn+ zn sp+ sp zn zn sp sp zn+ zn sp sp zn zn

Hence, option B is correct

7 0

3 years ago