Biology 101

Chapter 5: Biological Macromolecules & Lipids

Which of the following contain an ester bond:&nbsp;

All of the following is carbohydrate except:&nbsp;

Which of the following acts as fluidity buffer:&nbsp;

Vertebrates’ sex hormones are:&nbsp;

a primary component of cell walls of plants&nbsp;

Which statement is false about polypeptides:&nbsp;

synthesized by dehydration reaction

In sickle cell anemia, valine is substituted for:

Ovalbumin is an example of: &nbsp;

Hemoglobin presents:

Phospholipids tails are hydrophobic because of:&nbsp;

The cell wall of fungi is composed of:

Wrong about unsaturated fats:

they are found in animals like cows

they can join glycerol to form fat molecule&nbsp;

The role of cholesterol in membrane fluidity of animal cells is to: &nbsp;

restrains (limits) movement of phospholipids at high temperature&nbsp;

prevents tight packing of phospholipids at low temperature&nbsp;

restrains movement of proteins at low temperature&nbsp;

preventing tight packing of proteins at high temperature&nbsp;

Which of the following properties is shared by starch and cellulose?

How many molecules of water are needed to completely hydrolyze a 25 monomer long polypeptide:&nbsp;

Aldoses and ketoses differ in:&nbsp;

the position of the carbonyl group&nbsp;

the position of the hydroxyl groups&nbsp;

A saturated fatty acid contains more _____ atoms than unsaturated fatty acid.&nbsp;

Which of the following molecules is a not a polysaccharide?&nbsp;

Which is false about proteins?&nbsp;

protein’s specific structure determines how it works&nbsp;

functional protein is not just a polypeptide chain&nbsp;

the bond linking amino acids is non covalent&nbsp;

polypeptide backbone is the same in all polypeptides&nbsp;

the R group of amino acid monomers differs from one amino acid to another&nbsp;

Which level of protein organization is due to interactions between
amino acid side chain groups?&nbsp;

In a double -stranded DNA molecule, phosphodiester linkage consists
of a phosphate group that links:&nbsp;

the sugars of two nucleotides&nbsp;

deoxyribose to a nitrogenous base&nbsp;

ribose to a nitrogenous base&nbsp;

&nbsp;Which pair is mismatched?&nbsp;

amino acids polymer—————protein&nbsp;

alpha glucose polymer—————glycogen&nbsp;

fatty acid—————hydrophobic&nbsp;

beta glucose polymer—————cellulose

purine—————thymine&nbsp;

In sucrose the linkage between glucose and fructose is a _____ linkage.&nbsp;

Changing one amino acid in a protein could change:&nbsp;

Which of the following is amphipathic?&nbsp;

The term “microfibril” is most related to:&nbsp;

Which of the following is not a polymer?&nbsp;

All types of nucleic acids:&nbsp;

are single-stranded molecules&nbsp;

contain the same nitrogenous bases&nbsp;

is a polymer of sucrose subunits&nbsp;

is a storage polysaccharide of plants&nbsp;

is a storage polysaccharide of animals&nbsp;

is a major structural component of plant cell walls&nbsp;

is a major structural component of cell membrane&nbsp;

A phospholipid molecule has:&nbsp;