Quiz 3

Question 1

T/F A section of DNA is called a gene.

Answer 1

True

Question 2

What is the purpose of enzymes?

Answer 2

They lower the energy a reaction needs

They speed up the rate of reaction

Question 3

The four nitrogen bases on DNA are Cytosine, Adenine, Guanine and _________.

Answer 3

Thyamine

Question 4

The Glycocalyx is considered the “________ coating” of the cell membrane.

Answer 4

Sugar

Question 5

Name 2 reasons (functions) why glycoproteins and glycolipids are important for the cell membrane.

a. ____________________________
b. ____________________________

Answer 5

a. glycoproteins attach to the cytoskeleton
b. glycolipids are fat surrounding protein assisting with passage through the membrane

Question 6

Give an example of a ligand ______.

Answer 6

insulin

Question 7

In the spaces below please indicate if the process needs “energy” or “no energy”.

a. Osmosis __________
b. Exocytosis__________
c. Endocytosis__________
d. Facilitate transport/diffusion__________
e. Active transport__________

Answer 7

Osmosis / no energy

Exocytosis / energy

Endocytosis / energy

Facilitate transport/diffusion / no energy

Active transport / energy

Question 8

Energy is required when the substance is going from low to high concentration or high to low concentration?

Answer 8

low to high

Question 9

T/F An enzyme is transformed into a new product when it is joined with a substrate.

Answer 9

False

Question 10

T/F Osmosis is the diffusion of all liquids

Answer 10

False

Question 11

Label and draw the animal cell. Be sure to define the functions of each. (list 10)

Answer 11

Question 12

In an aerobic state how much ATP is produced. Draw a flow diagram including name and # of ATP

Answer 12