Which of the following statements describes integral membrane proteins?
i. they protect the contents of the cell from chaotropic agents such as urea.
ii. they are easily dissociated from the membrane by changes in ph or high salt concentration.
iii. they are held tightly in place by hydrophobic effects between the membrane and hydrophobic amino acids.

The correct answer is option - C.

Explanation:

Integral proteins are integrated proteins that are extended into the cytoplasm from the outer side of the cell. As it is known bilipid layer is fluid in nature it move around the cell layer.

These are the proteins also known as intrinsic proteins that contain parts with the side chains that are hydrophobic in nature. These are tightly located or packed between the hydrophobic amino acids and the membrane due to hydrophobic effects.

Thus, the correct answer is - option C.

not sure if this is what you'r looking for nnew= nold

kelp are large brown algae that live in cool, relatively shallow waters close to the shore. they grow in dense groupings much like a forest on land. these underwater towers of kelp provide food and shelter for thousands of fish, invertebrates, and marine mammal species.

e) all of the above