Semester 2 final part 2

Question 1

Which of following statements about evolution is FALSE?

Answer 1

traits that change due to use/disuse can be inherited

Question 2

When are the rates of adaptive radiation the highest?

Answer 2

when new ecological niches become available

Question 3

Name two organelles

Answer 3

lysosomes and lipid hydrolysis

Question 4

milk kept past the expiration date spoils and it curds. This is best explained by microbes..?

Answer 4

producing lactic acid which denatures proteins

Question 5

what plants are most closely related

Answer 5

phaseolus vulgarus & phaseolus coccineus

Question 6

a group of snails is divided into two populations, isolated by a river. Which is least likely?

Answer 6

population A may soon speciate by doubling its chromosome #

Question 7

What is a response to a rise in blood sugar?

Answer 7

the pancreas releases insulin

Question 8

What is true about a spherical cell?

Answer 8

as the diameter decreases the SA to volume ratio increases

Question 9

what will NOT decrease the output of photosynthesis

Answer 9

increased frequencies of stomata openings

Question 10

Which of the following produced the most ATP per mole of glucose used?

Answer 10

the electron transport chain & chemiosmosis

Question 11

What isn’t common to C3 and C4 plants in photosynthesis?

Answer 11

the initial step in carbon fixation

Question 12

a coenzyme that transfers electrons from the Krebs cycle to the ETC

Answer 12

FADH2

Question 13

The electron acceptor found in the light reactions of photosynthesis

Answer 13

NADP+

Question 14

The final electron acceptor for cellular respiration

Answer 14

oxygen

Question 15

Which two organelles have ETC and chemiosmosis?

Answer 15

chloroplast and mitochondria

Question 16

what type of molecules pass through membranes easily?

Answer 16

hydrophobic and small

Question 17

what happens to a membrane receptor when it’s activated?

Answer 17

it changes shape

Question 18

when a neuron opens a gated ion channel, the neurotransmitter that sent the signal is a ?

Answer 18

signal molecule

Question 19

the part of the immune system that creates a quick response when exposed the 2nd time is the?

Answer 19

memory cells

Question 20

the production of antibodies by plasma cells is part of what system?

Answer 20

humoral immune system

Question 21

the ability to produce millions of different antibodies due to?

Answer 21

alternating splicing of exons

Question 22

what are cell tags that help the immune system distinguish between self and foreign antigens?

Answer 22

antigen

Question 23

cells respond differently to the same hormones because they have

Answer 23

different transduction pathways