Exam 1

Question 0

An awareness of the sensations that are experiences is most accurately referred to as

Answer 0

Perception

Question 1

The sensory receptors for audition (hearing) are located in the

Answer 1

Organ of Corti

Question 2

Light from near or far objects is focused on the retina when

Answer 2

The lens changes shape

Question 3

Proprioception is most accurately described as

Answer 3

Sensing the position, orientation, and movement of the body

Question 4

Which of the following receptors is incorrectly paired paired with the type of energy it transduces

Answer 4

Pain receptors: -electricity

Question 5

Which of the following are also known as pain receptors

Answer 5

nociceptors

Question 6

Focusing the eye by changing the shape of the lens is called

Answer 6

Accommodation

Question 7

It is very difficult to sneak up on a fly and swat it. Why?

Answer 7

They have compound eyes with many ommatidia

Question 8

The highest density of photoreceptors for color is located in the

Answer 8

retina

Question 9

What is the name of the tough layer that forms the “white” of the eye?

Answer 9

Sclera

Question 10

Which of these is true of all receptors

Answer 10

They are found at the ends of dendrites and initiate a nerve impulse that is carried to the brain

Question 11

In nearsightedness, light rays are focused

Answer 11

in front of the retina

Question 12

Interpretation of stimuli evidently occurs

Answer 12

in the cerebrum

Question 13

The cochlea

Answer 13

contains the organ of Corti

Question 14

The ossicles of the middle ear

Answer 14

transmit sounds waves

Question 15

The diaphragm that regulates the size of the opening for light in the eye is the

Answer 15

iris

Question 16

the order in which light reaches the lens of a human eye is

Answer 16

cornea, aqueous humor, pupil, lens

Question 17

Taste buds and olfactory cells are both

Answer 17

chemoreceptors

Question 18

There are five sense receptors in the skin; they are

Answer 18

hot, cold, pressure, touch, and pain

Question 19

The blind spot is

Answer 19

on the retina where there are no rods and cones

Question 20

Place in order the 4 phases of food use in animals:

Answer 20

III, II, IV, I

Ingestion, Digestion, Absorption, Elimination

Question 21

Bile is produced by the

Answer 21

Liver

Question 22

Match the nutritional pattern on the left with teh appropriate description on the right

Answer 22

i=c, ii=a, iii=b

herbivore-consumption of plant material
carnivore- consumption of animal flesh
omnivore- consumption of plant and animal flesh

Question 23

Which of the following animaaals has a gastrovascular cavity

Answer 23

Hydra

Question 24

What is peristalsis

Answer 24

smooth muscle contractions that move food through the alimentary canal

Question 25

Starch digestion in humans begins in the mouth due to the action of slaivary amylase

Answer 25

true

Question 26

which of the following statements is true

Answer 26

enzyme production continues in the esophagus

Question 27

most enzymatic breakdown of macromolecules in food occurs in the

Answer 27

small intestine

Question 28

Which of the following enzymes has the lowest pH optimum?

Answer 28

pepsin

Question 29

How does the digetion and absorption of fat differ from that of carbohydrates

Answer 29

most absorbed fat first enters the llyphatic system whereas carbohydrates directly enter the blood

Question 30

Villi serve to

Answer 30

absorb nutrients

Question 31

Which of the following human digestive enzymes is incorrectly matched to its substrate

Answer 31

trypsin; nucleic acid

Question 32

At body temperature, which of these combinations is most likely to result in digestion

Answer 32

protein, HCl, pepsin

Question 33

The function of erythrocytes is to

Answer 33

transport oxygen throughout the body

Question 34

From the lungs, list in order the circulation of blood through the heart

Answer 34

I, V, III, VI, VIII, IV, II, VII

pulmonary vein, left atrium, left ventricle, aorta, systemic vein, right atrium, right ventricle, pulmonary artery

Question 35

gas and nutrient e3xchange between the circulation and the tissues occurs primarily at the

Answer 35

capillaries

Question 36

a semilunar valve in a mammalian heart would allow passage of blood into which of the following compartments

Answer 36

systemic arteries

Question 37

organisms in which a circulating body fluid is distince from the fluid that directly surround the body’s cells are likely to have

Answer 37

a closed circulatory system

Question 38

when the heart contraction is initiated from within the cardiac muscle itself, this is most accurately referred to as a neurogenic heart

Answer 38

false

Question 39

which sequence of blood flow can be observed in either a reptile or a mammal

Answer 39

vena cava –> right atrium –> right ventricle –> pulmonary circuit

Question 40

Human plasma proteins include which of the following

Answer 40

c. I and III only

fibrinogen and globulin

Question 41

The lub heart sound is due to the

Answer 41

closing of the atrioventricular valves

Question 42

which of these is not true of the heart?

Answer 42

it helps make RBC

Question 43

the pacemaker of the heart is termed the

Answer 43

SA node

Question 44

Systole occurs when the

Answer 44

heart tissue is contracting

Question 45

The long soluble threads of a blood clot originate from

Answer 45

fibrinogen

Question 46

platelets

Answer 46

initiate clotting

Question 47

which of these is not a valid contrast between red blood cells and white blood cells

Answer 47

Red
Phagocytic

White- motile

Question 48

All arteries carry oxygenated blood and all veins carry deoxygenated blood

Answer 48

false