Exam 1 & 2 Material - True/False Style

Question 1

The main difference between a channel and a transporter is that a channel does not bind with a
molecule in order for it to cross the membrane and a transporter does bind with a molecule to
move it across the membrane.

Answer 1

True

Question 2

The sense of taste uses two types of transduction.

Answer 2

True

Question 3

The Parasympathetic Nervous System lies entirely in the walls of the gastrointestinal tract

Answer 3

False

Question 4

Rumination is the process of releasing gas from the rumen.

Answer 4

False

Question 5

During muscle contraction, the I-band of the sarcomere gets longer.

Answer 5

False

Question 6

**Trigeminal nerve involves both motor neuron and sensory neuron.

Answer 6

True

Question 7

Conduction is the transfer of heat between neighboring molecules due to a temperature
gradient.

Answer 7

True

Question 8

Acute response refers to an immediate, short-term, reversible, phenotypic response to the external environment of an animal.

Answer 8

True

Question 9

The resting membrane potential for most neurons is -40 mV.

Answer 9

False

Question 10

Osmosis is the diffusion of water from high to low osmotic pressure.

Answer 10

False

Question 11

During segmentation/peristalsis the long muscles contract in front of the digesta and
segmentation occurs behind digesta.

Answer 11

True

Question 12

The two biggest factors that influence the metabolic rate are physical activity and
thermoregulation.

Answer 12

True

Question 13

Glial cells are cells in the Nervous System that supports neural function.

Answer 13

True

Question 14

Neurons organized into a central integrating area is called centralization.

Answer 14

True

Question 15

Grey matter is tracts of myelinated axons.

Answer 15

False

Question 16

**Slow oxidative muscle fibers use a high source of aerobic enzymes.

Answer 16

True

Question 17

**Heat moves from low temperatures to high temperatures.

Answer 17

False

Question 18

Villi are structures used to increase the surface area inside the small intestine.

Answer 18

True

Question 19

**Flexion increases joint angle, while Extension decreases join angle.

Answer 19

False

Question 20

**The gas layer in the rumen is on top of the fiber raft at the top of the rumen.

Answer 20

True

Question 21

**The thermo-neutral zone can be increased by shivering.

Answer 21

False

Question 22

**The only totipotent form of energy is mechanical energy.

Answer 22

False

Question 23

Ions must operate only on an electrical gradient to meet the electrochemical equilibrium.

Answer 23

False

Question 24

Volatile Fatty Acids are absorbed through the rumen epithelium.

Answer 24

True

Question 25

The peripheral nervous system has 3 main

branches- autonomic, somatic, enteric.

Answer 25

False

Question 26

Body temperature does not regulate tissue function.

Answer 26

False

Question 27

Brushborder enzymes are located in the small intestines.

Answer 27

True

Question 28

Motor neurons are known as afferent neurons, while sensory neurons are known as efferent
neurons.

Answer 28

False

Question 29

The duodenum of the small intestine is the site of reabsorption of bile salts.

Answer 29

False

Question 30

Interneurons are part of the central nervous system.

Answer 30

True

Question 31

Lactate is not a volatile fatty acid.

Answer 31

True

Question 32

Bitter, salty, sweet, sour, and creamy are the 5 taste sensations.

Answer 32

False

Question 33

A mechanism is the interaction of
the components of living animals that enable
animals to function as they do.

Answer 33

True

Question 34

Phospholipids contain a polar head and 2 non-polar tails.

Answer 34

True

Question 35

Cephalization are the neurons organized into a central integrating area.

Answer 35

False

Question 36

Pepsinogen is secreted by chief cells.

Answer 36

True

Question 37

Catabolism is the “constructive” processes of metabolism.

Answer 37

False

Question 38

Cholesterol digestion is only found in carnivores and omnivores.

Answer 38

True

Question 39

Glial cells in the nervous system conduct an electrical signal.

Answer 39

False

Question 40

The cell body or soma is the site

of protein synthesis in the neuron.

Answer 40

True

Question 41

Chronic homeostasis is long term and irreversible.

Answer 41

False

Question 42

Poikilotherms maintain their body temperature.

Answer 42

False

Question 43

Astrocytes regulate neuron metabolism and are the go-between for neurons and blood.

Answer 43

True

Question 44

Segmentation is a propulsive motility pattern that moves digesta over short segments of
small intestine at a time.

Answer 44

False

Question 45

The medulla is the portion of the brain that

regulates body temperature.

Answer 45

False

Question 46

The only two components needed for ATP are ADP and an extra phosphate.

Answer 46

False

Question 47

Conforming to environmental temperature requires more energy than regulating internal temperature.

Answer 47

False

Question 48

Evaporation is a form of heat transfer through which animals can both lose and gain heat.

Answer 48

False

Question 49

Regulators are able to maintain an internal environment despite change.

Answer 49

True

Question 50

Metabotropic receptors change
membrane potential faster than ionotropic
receptors.

Answer 50

False

Question 51

Parietal glands secrete mucous, HCl, and pepsinogens.

Answer 51

True