animal phys 1 clicker multiple choice

Which statement regarding the study of animal physiology is false?

a) Physiologist study how animals work

b) Physiology is key to understanding the fundamentals of biology of all animals

c) Physiology is key for understanding the health and disease of nonhuman animals

d)Physiology is key for understanding the social context of human disease.

D

If you measure the internal ion levels in an animal and they are equal to the external conditions, it is demonstrating?

a) conformity

b) regulation

c) homeostasis

d) independence

A

This figure is showing what happens when a human body’s temperature rises or falls and is an example of

a) a positive feedback

b) a negative feedback

c) a biological clock

d) a nonadaptive trait

B

True or False: All fixed traits are adaptions

a) True

b) False

B

Multiple-enzyme sequences in which each enzyme in the sequence activates multiple other

enzymes is an example of

a) covalent modulation

b) feedback inhibition

c) constitutive enzyme

d) amplification

D

True or False: Evolution is the change in gene frequency over time through natural selection.

a) True

b) False

B

Which cell-cell junction acts as a fence between the apical and basal region of a cell membrane

a) tight junction

b) hedge junction

c) desmosomes

d) gap junction

A

In the most common mechanism for protein degradation, proteins are tagged for death by:

a) a heat shock protein

b) a molecular chaperone

c) a proteasome

d) ubiquitin

D

The colder the habitat the greater the degree of phospholipid ___________ in the brain synaptic membranes of fish?

a) saturation

b) junctions

c) unsaturation

d) chaperones

C

True or False: Only strong covalent bonds contribute to the folding (tertiary structure) of

proteins.

a) True

b) False

B

Human LDH-A4 and rat LDH-A4 together are a good example of

a) isozymes

b) interspecific enzyme homologs

c) allosteric modulators

d) substrates

B

True or False: Covalent modulation is often accomplished through phosphorylation.

a) True

b) False

A

True or False: A lower Km value (the substrate required to reach half maximum reaction velocity) indicates a lower substrate affinity for that enzyme.

a) True

b) False

B

True or False: The regulation of cell function through metabolic pathways is accomplished in two major ways. The synthesis/degradation of enzymes and changes to the catalytic activity of enzymes.

a) True

b) False

A

For which type of receptors do the ligands travel through the cell membrane?

a) G protein linked receptors

b) Enzyme/Enzyme linked receptors

c) Intracellular receptors

d) Membrane proteins

C

True or False: The overarching goal of genomics is to elucidate the evolution and current function of genes and genomes.

a) True

b) False

A

True or False: The study of all the organic compounds in cells and tissues other than macromolecules coded by the genome is called metabolomics.

a) True

b) False

A

Seasonal polyphenism in the western white butterfly aids in

a) mate attraction.

b) predator avoidance.

c) thermoregulation.

d) seasonal camouflage.

C?

Modifications of gene expression (with no change in DNA sequence) that are

transmitted when genes replicate are called

a) epigenetic changes.

b) phenotypic plasticity.

c) genetic mapping.

d) polyphonic development.

B?

What process is shown in the figure?

a) Epigenetic marking

b) Genotypic plasticity

c) Genomic mapping

d) Genomic imprinting

A?

Which mechanism is not used for epigenetic marking?

a) DNA methylation

b) mRNA methylation

c) Histone methylation

d) Histone phosphorylation

B?

When brain histone acetylation is manipulated to be higher in _________ caste

they begin to forage more like _____ caste in Carpenter ants.

A. Queen, worker

B. Worker, queen

C. Major, minor

D. Minor, major

D?