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Question 1 of 32
0.0/ 3.0 Points
Which of the following does not utilize active transport?

A.movement of oxygen
from the lungs into the blood
B.concentrating
iodine ions in the thyroid gland
C.absorbing sugar in
the gut
D.water homeostasis
in the kidneys
E.movement of sodium
and potassium in nerve cells

Question 2 of 32
3.0/ 3.0 Points
Which type of junctions must there be between cells to form
a barrier?

A.adhesion junctions
B.gap junctions
C.tight junctions
D.channel junctions
E.free junctions

Question 3 of 32
0.0/ 3.0 Points
The assisted transport of a molecule across the cell
membrane without an expenditure of energy is known as what?

A.diffusion
B.facilitated
transport
C.active transport
D.osmosis
E.crenation

Question 4 of 32
3.0/ 3.0 Points
During a hurricane, salt water invades fresh water marshes
causing many of the plants to die. The plants are killed because the salt water
solution is __________________ to the plants, drawing water from their cells.

A.isotonic
B.hypotonic
C.mesotonic
D.oligotonic
E.hypertonic

Question 5 of 32
0.0/ 3.0 Points
What is the maximum number of ATP molecules produced during
aerobic respiration?

A.38
B.36
C.32
D.2
E.4

Question 6 of 32
3.0/ 3.0 Points
How large is a nuclear pore in the nuclear envelope?

A.larger than a
ribosome
B.larger than the
Golgi apparatus
C.larger than the
endoplasmic reticulum
D.smaller than a
ribosome
E.smaller than a
protein

Question 7 of 32
3.0/ 3.0 Points
Often when a person is admitted to the hospital, an
intravenous solution of normal saline is begun. Since this does not harm the
patient, what is the tonicity of normal saline compared to your blood?

A.hypertonic
B.isotonic
C.hypotonic
D.pretonic
E.osmotonic

Question 8 of 32
3.0/ 3.0 Points
Sheree observed an amoeba feeding by engulfing the prey with
its false feet or pseudopods. This process is known as

A.pinocytosis.
B.phagocytosis.
C.exocytosis.
D.facilitated
transport.
E.osmosis.

Question 9 of 32
0.0/ 3.0 Points
Angela would like to look at living algae from pond water.
What type of equipment should she use?

A.compound light
microscope
B.transmission
electron microscope
C.scanning electron
microscope
D.magnifying glass
E.her naked eye

Question 10 of 32
3.0/ 3.0 Points
If a cell lacked ribosomes, it would not be able to

A.form a spindle
apparatus.
B.synthesize
proteins.
C.respire
oxidatively.
D.break down fats.
E.produce ATP.

Question 11 of 32
3.0/ 3.0 Points
What components make up the ribosomes?

A.proteins and rRNA
B.proteins and DNA
C.lipids and rRNA
D.carbohydrates and
rRNA
E.proteins and DNA

Question 12 of 32
0.0/ 3.0 Points
Which type of gland can become blocked and form a
“blackhead?”

A.sudoriferous
B.sweat
C.endocrine
D.sebaceous
E.compound

Question 13 of 32
0.0/ 3.0 Points
________ glands are considered ductless glands and ______
glands contain ducts.

A.Exocrine, endocrine
B.Transitional,
exocrine
C.Transitional,
endocrine
D.Endocrine, exocrine
E.Sudoriferous,
transitional

Question 14 of 32
3.0/ 3.0 Points
Which of the following is responsible for the waterproofing
of skin?

A.mucus
B.keratin
C.hyaline cartilage
D.sweat
E.wax

Question 15 of 32
3.0/ 3.0 Points
Which of the following body parts is surrounded by a mucous
membrane?

A.the ovaries
B.the heart
C.the cavities of
freely movable joints
D.tubes of the
digestive system
E.the abdominal
cavity

Question 16 of 32
3.0/ 3.0 Points
Jacob looked up and saw the car. This information was
relayed to him via what type of tissue?

A.Epithelial
B.Connective
C.Muscular
D.Nervous
E.Vascular

Question 17 of 32
0.0/ 3.0 Points
Stretch marks are the result of tears in the integumentary
layer that contains fibrous connective tissue, elastin, and collagen. What is
this region of the integument called?

A.subcutaneous layer
B.Langerhan layer
C.epidermis
D.hypodermis
E.dermis

Question 18 of 32
0.0/ 3.0 Points
The best description for the two components of blood are

A.red blood cells and
plasma.
B.platelets and
plasma.
C.white blood cells
and red blood cells.
D.formed elements and
plasma.
E.formed elements and
platelets.

Question 19 of 32
3.0/ 3.0 Points
The body’s ability to maintain a relative constancy of its
internal environment is called

A.homeostasis.
B.development.
C.homogeneous.
D.coordination.
E.feedback.

Question 20 of 32
3.0/ 3.0 Points
What type of tissue receives sensory input, integrates data,
and conducts impulses?

A.Epithelial tissue
B.Connective tissue
C.Muscular tissue
D.Nervous tissue
E.Vascular tissue

Question 21 of 32
3.0/ 3.0 Points
Which type of tissue covers body surfaces and lines body
cavities?

A.epithelial tissue
B.connective tissue
C.muscular tissue
D.nervous tissue
E.vascular tissue

Question 22 of 32
0.0/ 3.0 Points
When you put your hand on a hot stove, ____ receive signals
from the sensory receptors or other neurons and ______ conduct nerve impulses.

A.astrocytes,
oligodendrocytes
B.axons, dendrites
C.astrocytes,
dendrites
D.dendrites, axons
E.dendrites,
astrocytes

Question 23 of 32
3.0/ 3.0 Points
Which of the following is a substance that dissolves in
water to release hydrogen ions?
A.base
B.acid
C.protein buffer
D.pH

Question 24 of 32
0.0/ 3.0 Points
Too much carbon dioxide in the blood can be the result of
_______.
A.fever
B.anxiety
C.emphysema
D.hyperventilation

Question 25 of 32
0.0/ 3.0 Points
Which of the following systems can compensate for pH changes
in the body the fastest?
A.renal system
B.respiratory system
C.digestive system
D.endocrine system

Question 26 of 32
3.0/ 3.0 Points
Hypoventilation results in
A.spasms of the hands
and feet.
B.an accumulation of
CO2 in the blood.
C.lightheadedness.
D.numbness around the
lips.

Question 27 of 32
0.0/ 3.0 Points
Acidosis is characterized by a blood pH _______.
A.less than 7.45
B.greater than 7.45
C.greater than 7.00
D.less than 7.35

Question 28 of 32
3.0/ 3.0 Points
What is the normal range for the partial pressure of carbon
dioxide in the blood?
A.55-65 mm Hg
B.15-25 mmHg
C.35-45 mm Hg
D.7.35-7.45 mm Hg

Question 29 of 32
0.0/ 3.0 Points
Which of the following is true about
“rebreathing”?
A.PCO2 will typically
decrease.
B.Anxiety is
respiratory problem that can mimic the effects of rebreathing.
C.it will cause the
body to go into a state of alkalosis.
D.pH typically will
decrease.

Please review Lab Exercise 10, Activity 2.
Part 4 of 5 – 5.0/
8.0 Points Answer the following question
in your own words without using any resources. Your answer should be written in
complete sentences using correct grammar, spelling, and terminology.

Question 30 of 32
4.0/ 4.0 Points
Define the term “buffer.”
 Question 31 of 32
1.0/ 4.0 Points
Briefly explain how the renal system regulates acid-base
balance.

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