Cell Bio Summer 2022

Which of the following recognize and destroy foreign cells?

• Gland cells

• Immune cells

• Nerve cells

• Red blood cells

Which of the following is not a function of the plasma membrane?

• Self-identification

• Receptor site for messages

• Selective barrier

• Control center of the cell

The major function of ribosomes is to synthesize:

• proteins.

• carbohydrates.

• fats.

• cholesterol.

Hair-like projections from the cell that move materials and mucus are called:

• cilia.

• flagella.

• microvilli.

• microtubules.

DNA is a major constituent of which cell organelle?

• Lysosome

• Ribosome

• Nucleus

• Chromosome

In the cell membrane, the hydrophilic part of the phospholipid molecule:

• faces the exterior of the cell.

• faces the interior of the cell.

• is in the center of the phospholipid bilayer.

• both A and B.

The presence of which substance in the cell membrane keeps it from breaking too easily?

• Cholesterol

• Protein

• Phospholipids

• Glycoproteins

Which of the following is not a function of the smooth endoplasmic reticulum?

• Provides a site for ribosome attachment

• Supplies membrane for use throughout the cell

• Makes steroid hormones

• Makes glycoproteins

The membranous structure containing substances that protect the cell from harm are:

• ribosomes.

• lysosomes.

• peroxisomes.

• both B and C.

Which of the following is not true of the rough endoplasmic reticulum?

• It makes lipids and carbohydrates.

• It is made of broad, flattened sacs.

• It has many ribosomes attached to it.

• All of the above are true of rough endoplasmic reticulum.