exam 2

Question 1

what are the 5 nitrogenous bases?

Answer 1

adenine, guanine, thymine, cytosine, uracil

Question 2

what property of light determines its energy?

Answer 2

wave length

Question 3

why do we see plants as green?

Answer 3

green light is not absorbed

Question 4

how are electrons replenished in photosystem II?

Answer 4

split h2o

Question 5

what is the ratio of co2 to g3p?

Answer 5

3:1

Question 6

what is the difference between respiration and cellular respiration?

Answer 6

breathing vs. breaking down sugar

Question 7

how much of the energy originally stores in glucose is utilized in respiration?

Answer 7

34%

Question 8

Role of RNA polymerase?

Answer 8

rna to dna

Question 9

role of ribosome?

Answer 9

synthesizes proteins

Question 10

how many nucleotides are there? How many amino acids?

Answer 10

4 nucleotides, 20 amino acids

Question 11

whats a start codon, how many are there?

Answer 11

begins protein synthesis, has 47

Question 12

whats a stop codon, how many are there?

Answer 12

3

Question 13

through what process are monosaccharides joined to make disaccharides?

Answer 13

dehydration synthesis reaction

Question 14

what are the four different polysaccarides?

Answer 14

starch, cellulose, and glycogen

Question 15

how much energy that is released in respiration is lost in the form of heat?

Answer 15

34%

Question 16

how many ATP can respiration generate?

Answer 16

38

Question 17

role of the electron transport chain?

Answer 17

NADH passes electrons

Question 18

where do the electrons that move through the electron transport chain end up?

Answer 18

mitochondria

Question 19

why does a cell undergo fermentation rather than aerobic respiration?

Answer 19

because cells dont get oxygen fast enough with aerobic respiration

Question 20

three possible products of fermentation?

Answer 20

alcohol, carbon, lactic acid