Chapter 2,4 Assignment Questions

Energy sources correctly listed from most to least readily availible for the cell to generate ATP

Glucose, fatty acids, triglcerides

Fat intake should not exceed:

30%

How often can a sucrase molecule be used to hydrolyze sucrose?

Many times

Example of unsaturated fat

Nuts

Which fat has a straight chain pattern instead of a saw tooth pattern?

Saturated fats

What makes fat unsaturated vs saturated?

Unsaturated fats have at least one double bond

Amino acids are characterized by ____

an amino group on one end of the molecule and a carboxyl group in the other end

ATP is able to store and release large amounts of energy because of its:

bond with phosphate groups and its ability to couple to exergonic and endergonic reactions

The function of sucrase is to

break sucrose into glucose and fructose

tertiary structure stabilization can be disrupted by changes in pH and temperature, this is called:

denaturalization

Where is sucrose found in the human body?

microvilli of the small intestine

The direction of reversible reactions depends on the _________ concentrations of the reactants and products

relative

Phospholipids tend to group together so that their polar parts face the surrounding aqueous environment, while their hydrophobic tails face each other. The resulting structures are called:

steroids

Active site is a binding site for

substrate

How does sucrose change the configuration of sucrase?

sucrose binds to its active site on sucrase, changing the shape of the sucrase enzyme

The helix that forms in a protein chain as a result of hydrogen bonds and other weak forces is an example of

the secondary structure of a protein

Monomers in the lipid category have which of the following common physical properties?

they are all insoluble in polar solvents

Fats that are at room temp and are artificially produced are called:

trans fats