Why was iodine able to diffuse across the membrane while starch was not?

2 answers:

4 0

Starch cannot diffuse across the membrane because starch molecules are too large to fit through the pores in the dialysis tubing, whereas iodine is a smaller molecule and therefore can diffuse across.

Aloiza [94]2 years ago

3 0

Answer:

The correct reason would be their size difference iodine are small while starch molecules are large to pass through the membrane.

Explanation:

The permeability of the membrane also depends on the size of the molecule. The large molecule can not pass even though all other conditions are in their favor. For example Iodine molecules are small enough to go through the membrane freely, however starch molecules are too large and complex to pass through the membrane.

Thus, The correct reason would be their size difference iodine are small while starch molecules are large to pass through the membrane.

You might be interested in

A cell that phagocytizes an antigen and displays fragments of it on its surface for recognition by other cells of the immune sys

pochemuha

Antigen presenting cell is a cell phagocytizes an antigen and displays fragments of it on its surface for recognition by other cells of the immune system

<h3>What is Antigen presenting cells?</h3>

An antigen-presenting cell refer to an immune cell that detects, engulfs, and pass a message to the adaptive immune response about an infection. When a pathogen is detected, the antigen presenting cells will engulf the pathogen and digest it to form many different fragments of the antigen.

Therefore, Antigen presenting cell is a cell phagocytizes an antigen and displays fragments of it on its surface for recognition by other cells of the immune system

Learn more about antigen presenting cell here.

brainly.com/question/13022436

5 0

2 years ago

Where are the protein complexes associated with the electron transport chain located?

wlad13 [49]

Mitochondria

Explanation:
The electron transport chain is a series of proteins and organic molecules found in the inner membrane of the mitochondria.

Can you mark it brainiest if it answer your question. Pleaseeeee

5 0

3 years ago

Which best describes how an organism’s niche is determined?

dusya [7]

The correct answer is that it is an organism's habitat and inherited traits that determine its niche.

The principle of competitive exclusion states that the two species cannot hold the similar niche in the same habitat. A niche of an organism is predicted by its habitat that is its physical surrounding. The inherited traits and adaptation enhances the organism's chances of survival, and it also predicts a niche of an organism.

5 0

3 years ago

Read 2 more answers

The human hands and feet have similar types and numbers of bones. However, hands and feet are very different in their appearance

Ira Lisetskai [31]

<u>Explanation:</u>

One physical difference between the hands and feet is that the human hands appear to be more flexible than our feet. Also, in terms of size, our feet are smaller than our hands.

Let's assume that our feet become as flexible as our hands and the hands less flexible, it would affect the function they perform.

If for example, we were to walk with our hands we will fail to achieve stability.
And if for example, we decide to grab hold of items with our feet we will be unable to do so.

It is also reasonable to expect other primates to have hands and feet that differed from ours because they are necessary so they can adapt to their environment just like humans too.

8 0

3 years ago

What would be the answer for this question?(Biology)

MrRissso [65]

I think the answer is A

6 0

3 years ago