AP Biology: Crunch Time Quiz 4

Question 1

What does pH measure?

Accepted Answer

power of hydrogen

Question 2

Similar to how a ball rolls down a hill (from higher potential energy to lower potential energy), water flows from

Accepted Answer

areas of higher water potential to areas of lower water potential

Question 3

The migration of individuals into a population causes

Accepted Answer

gene flow

Question 4

Which of these is NOT an example of a regulatory sequence used in eukaryotes?

Accepted Answer

operon

Question 5

_____ joins together Okazaki fragments on the _____ strand during DNA replication.

Accepted Answer

Ligase; lagging

Question 6

This is the amount of organic compounds left after a producer meets its own energy needs.

Accepted Answer

net primary productivity

Question 7

Similar to how an accelerator propels a car, these propel cell division at a specific rate.

Accepted Answer

proto-oncogenes

Question 8

If each subsequent generation of a plant is weaker and less robust, it is most likely a result of

Accepted Answer

hybrid breakdown

Question 9

What is the difference between mitosis and meiosis II?

Accepted Answer

The events of meiosis II are not preceded by DNA replication.

Question 10

Cucumbers and muskmelons are in the same genus but cannot cross-pollinate each other. This is an example of

Accepted Answer

gametic isolation

Question 11

Glucagon travels a long distance in the bloodstream to help return blood glucose levels to normal range. This is

Accepted Answer

endocrine signaling and negative feedback

Question 12

This is the three-dimensional folded shape of a protein.

Accepted Answer

tertiary structure

Question 13

Which of the following can cause disruptions to ecosystems?

Accepted Answer

all of these

Question 14

Where is genetic drift more likely to occur: in a population of 1,000 individuals or in a population of 10 individuals?

Accepted Answer

Genetic drift is more likely in a population of 10 individuals.

Question 15

This system involves an enzyme that uses a piece of guide RNA to find where to cut DNA.

Accepted Answer

CRISPR-Cas9

Question 16

In an enzyme-catalyzed reaction, the effect of this type of molecule can be overcome by adding more substrate.

Accepted Answer

competitive inhibitor

Question 17

A heterozygous plant is crossed with a recessive one. Which genotype could NOT result from this cross?

Accepted Answer

homozygous dominant

Question 18

Which of these statements about Mendelian genetics is incorrect?

Accepted Answer

Mendel’s law of independent assortment applies to linked genes.

Question 19

Which of these is NOT true of relationships within communities?

Accepted Answer

These relationships can only be classified as negative or neutral.

Question 20

Peacocks with bright plumage are more likely to attract mates than peacocks with dull plumage. This exemplifies

Accepted Answer

sexual selection

Question 21

The farther apart two linked genes are on a chromosome, the more likely a _____ event will occur.

Accepted Answer

genetic recombination

Question 22

Which of these statements about the theory of evolution by natural selection is correct?

Accepted Answer

If an environment changes, different phenotypes may confer an advantage.

Question 23

Which of these incorrectly pairs the process with its location?

Accepted Answer

fermentation; outer membrane of mitochondria

Question 24

Transpiration can be defined as

Accepted Answer

the loss of water through the stomata in the leaves of a plant

Question 25

Which of these is NOT a way that enzymes can lower the activation energy of a reaction?

Accepted Answer

changing an endergonic reaction into an exergonic reaction

Question 26

In the light-dependent reactions, the final electron acceptor is _____; in oxidative phosphorylation, it is _____.

Accepted Answer

NADP+; oxygen

Question 27

These organisms obtain energy by consuming the organic waste of dead plants and animals.

Accepted Answer

detritivores

Question 28

Water moves in and out of a cell through membrane proteins called aquaporins. This is an example of

Accepted Answer

facilitated diffusion

Question 29

The redundancy in the genetic code allows for _____ mutations.

Accepted Answer

silent

Question 30

Mammals use thermal energy generated from their metabolism to maintain their body temperature. Thus, they are

Accepted Answer

endotherms

AP Biology: Crunch Time Quiz 4

Questions 30

AP Biology: Crunch Time Quiz 4

Questions 30