GEN BIO

The plasma membrane is a bilayer of phospholipids. Where are the lipid tails located?

• A. Inner part of the bilayer

• B. Outer part of the bilayer         

• C. At the end of the bilayer

• D. Goes through each end of the bilayer

Which of the following plasma membrane structure gives the cell’s selectively permeable characteristic?

• A. Cholesterol

• B. Phospholipids             

• C. Glycolipids on the outer surface of the membrane.

• D. Transport proteins.

Which cell organelle is the most responsible for the cell’s homeostasis?

• A. Cell wall         

• B. Cytoplasm                    

• C. Cell membrane

• D. Nuclear membrane

What is the primary function of proteins in cell membranes?

• A. Photosynthesis

• B. Cellular transport

• C. Cellular respiration

• D. Increase fluidity of the cell

It is a storage of polysaccharide derived from potatoes, wheat, bread, pasta, and other bread products.

• A. Starch            

• B. Glycogen         

• C. Maltose

• D. Sucrose

When a carbohydrate is attached to a phospholipid, what is its structure called?

• A. Glycolipid      

• B. Carbolipids    

• C. Chlorolipids

• D. Phospholipids

How will a cell membrane react when it sensed a pathogen?

• A. Enzyme proteins will bind and attack invading pathogens.

• B. Junction protein attached to the pathogen and flip it away.

• C. Peripheral protein along with integral protein stops pathogen to mutate.

• D. Receptor proteins will link pathogen to the carbohydrates so it cannot enter the cell.

Which will you observe when you place phospholipid in water?

• A. It will wait for a signal whether to react or not.

• B. Both heads and tails will form bond with water

• C. Both heads and tails will stay away from water

• D. It will spontaneously organize into bilayer where the heads interact with water while the tails hide from water.

. Enzymes are _______ in nature.

• A. RNA

• B. fats  

• C. proteins

•             D. carbohydrates

What enzyme splits hydrogen peroxide into water and oxygen?

• A. Renin

• B. Aldolase

• C. Catalase

• D. Carbonic Anhydrase