Past quiz questions (all units)

Question 1

T or F: All animals are eukaryotes but not all eukaryotes are animals

Answer 1

T

Question 2

T or F: Protozoans are considered primitive animals

Answer 2

F

Question 3

T or F:

Green photosynthetic organisms that live in the water are all algae.

Answer 3

T

Question 4

T or F: Green alga was the likely ancestor of all plants about 470 mya, including red and brown algae.

Answer 4

F

Question 5

T or F: Synapomorphies are traits shared by a lineage that are absent in the sister lineage. For example, hair/fur is a synapomorphy of mammals.

Answer 5

T

Question 6

T or F: Multicellularity arose exclusively in plants, fungi and animals.

Answer 6

F

Question 7

T or F: Fungi are more closely related to animals than to plants.

Answer 7

T

Question 8

The most recent common ancestor of fungi and animals was what?

Answer 8

opisthokont

Question 9

Taxonomic terms

Answer 9

Species
Genus
Family
Order
Class
Phylum 
Kingdom
Domain

Question 10

T or F: Like all mammals, both you and mice have 2 paralogs of enzyme X (EnX), called EnXa and EnXb. True or false, your EnX paralogs are more different from each other than are EnXa orthologs of you and mouse.

Answer 10

T

Question 11

T or F: Whole genome duplications early in the vertebrate lineage provided the raw material for the evolutionary complexity of vertebrates. True or false. If there is 1 copy of a gene in a sea urchin, you would expect 4 copies of that gene in a lizard, assuming no addition gene duplications or deletions.

Answer 11

T

Question 12

T/F
The adaptive immune system includes both responses mediated by cytotoxic cells and responses of extracellular proteins that are present in body fluids.

Answer 12

T

Question 13

T/F
Cells of the innate immune system are able to recognize the presence of pathogens because the pathogens bear PRR (pathogen-recognition receptors).

Answer 13

F

Question 14

T/F
It is common for people with allergies to use histamines to block the allergic response, acting on mast cells to prevent them from from releasing their cytokines.

Answer 14

F

Question 15

T/F

Immunization works by stimulating memory cells to produce abundant antibody.

Answer 15

F

Question 16

T/F

In contrast to passive transport, all forms of active transport require ATP as a source of energy.

Answer 16

F

Question 17

T/F
You are comparing 2 animals of similar shape, and both can be modelled as if they were cubes. The smaller animal measures 1 unit x 1 unit x 1 unit. The larger animal is 2 x 2 x 2. The larger animal has twice the surface area to volume of the smaller animal.

Answer 17

F

Question 18

T/F
The following elements of a muscle are arranged in increasing order of size: thin filament, thick filament, sarcomere, myofibril, myofiber, muscle.

Answer 18

T

Question 19

T/F

Striated muscles have thick and thin filaments whereas smooth muscle does not.

Answer 19

F

Question 20

T/F
In many solid tissues, the basal lamina is that part of the cell membrane that is attached to connective tissue to give the organ a more defined three-dimensional structure.

Answer 20

F

Question 21

T/F
During an action potential, the membrane potential first moves toward the equilibrium potential for Na+, then at peak depolarization, moves away from the equilibrium potential for Na+, toward the equilibrium potential for K+.

Answer 21

T

Question 22

T/F

The hormones LH and FSH control reproduction in female mammals, but they have no role in male reproductive biology.

Answer 22

F

Question 23

T/F

Depolarization of a neuron occurs when Na channels open and Na rushes out of the cell.

Answer 23

F

Question 24

T/F
Cyclic AMP is a protein kinase involved in various signalling cascades. Activation of select G-protein coupled receptors stimulates the activity of adenyl cyclase, which makes cAMP, leading to changes in phosphorylation of target proteins.

Answer 24

F

Question 25

T/F
A novel species of butterfly has evolved the ability to attack birds that prey on it, injecting cardioglycosides it extracts from the milkweed on which it feeds. True or false, In this situation, the cardioglycoside would be considered both a venom and a poison.

Answer 25

T