Bio 2050 - Anatomy and Physiology » Summer 2021 » Lecture Exam 1
Need help with your exam preparation?
Get Answers to this exam for $6 USD.
Get Answers to all exams in [ Bio 2050 - Anatomy and Physiology ] course for $25 USD.
Existing Quiz Clients Login here
Question #1
In the process of diffusion, net movement of substances is always from a region
A.
of higher concentration to a region of lower concentration.
B.
inside the cell to a region outside the cell.
C.
of lower concentration to a region of higher concentration.
D.
outside the cell to a region inside the cell.
Question #2
What type of membrane proteins allow cells to identify one another?
A.
receptor proteins
B.
channel protein
C.
marker molecules
D.
enzymes
Question #3
Knowledge of the structure of body parts helps us to understand their function. Which of the following is an accurate example of that principle?
A.
Each tissue type is composed of cells that have a similar structure and function.
B.
Moveable joints allow us to bend our fingers to perform many different actions.
C.
The internal environment of the body is maintained in a relatively stable condition.
D.
The basic structural unit of the body is the cell.
Question #4
Light-skinned races such as Caucasians have
A.
fewer melanocytes than races with darker skins.
B.
approximately the same number of melanocytes as races with darker skins.
C.
more melanin in their skin.
D.
more melanocytes than races with darker skins.
Question #5
Epithelial tissue is characterized by each of these traits, except that;
A.
it lacks blood vessels
B.
epithelial cells are loosely packed and have little intercellular material
C.
it functions in secretion, absorption, and excretion
D.
it is anchored to a basement membrane
Question #6
Which of the following statements concerning the epidermis is true?
A.
The epidermis is nourished by blood vessels located in the dermis.
B.
The dermis is superficial to the epidermis.
C.
The epidermis contains numerous blood vessels.
D.
The most numerous cells in the epidermis are the melanocytes.
Question #7
Visual inspection of the appearance of the liver and gallbladder during surgery is associated with which of the following?
A.
gross anatomy
B.
physiology
C.
radiology
D.
histology
Question #8
What type of membrane proteins are integral proteins that move ions or molecules across plasma membrane?
A.
marker molecules
B.
carrier proteins
C.
receptor proteins
D.
channel protein
Question #9
The movement of molecules against their concentration gradient is called
A.
endocytosis.
B.
active transport.
C.
facilitated diffusion.
D.
diffusion.
Question #10
What must be present for diffusion to occur?
A.
concentration gradient
B.
cell membrane
C.
protein carriers
D.
aquaporins
Question #11
Which vitamin begins its synthesis in the skin exposed to ultraviolet light?
A.
vitamin C
B.
vitamin A
C.
vitamin D
D.
vitamin B
Question #12
The main components of the plasma membrane are
A.
lipids and ions.
B.
proteins and carbohydrates.
C.
carbohydrates, ions, and lipids.
D.
proteins, lipids, and carbohydrates.
Question #13
The plasma membrane
A.
has a single layer of phospholipids.
B.
separates the nucleus from the rest of the cell.
C.
is a rigid protein membrane.
D.
regulates movement of materials into and out of the cell.
Question #14
Which of the following is NOT the correct name of an organ system?
A.
lymphatic
B.
integumentary
C.
cardiovascular
D.
hormonal
Question #15
The layer of epidermis that undergoes mitosis and forms new epidermal cells is the
A.
stratum corneum.
B.
stratum basale.
C.
stratum lucidum.
D.
stratum granulosum.
Question #16
Given these terms related to feedback mechanism: 1.Stimulus 2. Receptor 3. Effectors 4. Response 5. Control center: Arrange them in the correct order as they operate to maintain homeostasis.
A.
23415
B.
12534
C.
51243
D.
34251
Question #17
Which of the following represents the correct order of the layers of the epidermis from the deepest to the most superficial?
A.
stratum basale, stratum spinosum, stratum granulosum, stratum lucidum, and stratum corneum
B.
stratum lucidum, stratum granulosum, stratum corneum, stratum basale, and stratum spinosum
C.
stratum spinosum, stratum basale, stratum lucidum, stratum corneum, and stratum granulosum
D.
stratum basale, stratum granulosum, stratum lucidum, stratum spinosum, and stratum corneum
Question #18
The nucleus of a cell functions to
A.
produce secretory vesicles.
B.
digest lipids.
C.
produce ATP.
D.
control and coordinate cellular activities.
Question #19
Channel proteins
A.
allow cells to recognize one another.
B.
provide a tunnel through which ions or molecules can enter or leave the cell.
C.
utilize the G protein complex to function.
D.
are found only on endoplasmic reticulum.
Question #20
A cell's ability to replenish ATP is reduced by a metabolic poison. Which organelle is being affected?
A.
centriole
B.
nucleus
C.
mitochondrion
D.
microtubule
Question #21
Which subdivision of anatomy involves the study of organs that function together?
A.
regional
B.
systemic
C.
histology
D.
developmental
Question #22
The two primary components of a matrix of a connective tissue are;
A.
cells and fibers
B.
ground substance and fibers
C.
osetocyte and elastic fibers
D.
fibroblast and fibers
Question #23
At ____________, transmembrane proteins create tiny pores through which small molecules and ions pass between adjoining cells.
A.
adhering junctions
B.
gap junctions
C.
tight junctions
D.
desmosomes
Question #24
Which of the following statements concerning the hypodermis is false?
A.
Hypodermis is composed of dense connective tissue with collagen and elastin fibers.
B.
The hypodermis is a site of fat storage.
C.
Hypodermis is referred to as subcutaneous tissue.
D.
The hypodermis attaches the skin to underlying bone and muscle.
Question #25
Which of the following is most consistent with homeostasis?
A.
Men working in a hot environment drink large quantities of water, and their urine volume increases.
B.
Elevated blood glucose levels cause insulin secretion (insulin causes cells to take up glucose) to increase.
C.
As blood pressure falls, blood flow to cardiac (heart) muscle decreases.
D.
As the mean blood pressure gradually increases in aging people, the blood vessel walls become thinner.
Question #26
The bulk uptake of material by the formation of a vesicle is called
A.
endocytosis.
B.
passive transport.
C.
facilitated diffusion.
D.
diffusion.
Question #27
Homeostasis is defined as
A.
the production of energy by cells.
B.
the combination of growth, self-repair, and energy release.
C.
the maintenance of a relatively constant environment within the body.
D.
an amplification of deviation from the normal range.
Question #28
When the concentration of water molecules on both sides of a membrane is the same (as a cell in an isotonic solution), the water molecules will;
A.
stop moving across the membrane
B.
move across the membrane, but equally in both directions
C.
move across the membrane to the outside of the cell
D.
move across the membrane to the inside of the cell
Question #29
Fingerprints and footprints are produced by projections into the epidermis called
A.
dermal striae.
B.
dermal papillae.
C.
melanocytes.
D.
melanocytes.
Question #30
What type of membrane proteins have an exposed site on the outer cell surface that can attach to a ligand/hormone/neurotransmitter?
A.
receptor proteins
B.
channel protein
C.
enzymes
D.
marker molecules
Question #31
The four principal types of tissues are
A.
connective, skeletal, epithelial, nervous
B.
epithelial, connective, muscle, nervous
C.
epithelial, skeletal, connective, reticular
D.
muscle, nervous, skeletal, connective
Question #32
Which of the following structures is found in the nucleus?
A.
cisternae
B.
cristae
C.
chromosome
D.
cytosol
Question #33
Which of the following is consistent with homeostasis?
A.
Elevated blood glucose levels cause insulin secretion to decline.
B.
When a person drinks large quantities of water, urine output decreases to raise blood volume.
C.
As body temperature rises, sweating occurs to cool the body.
D.
Decreases in blood pressure cause a corresponding decrease in heart rate.
Question #34
This stratum contains many layers of dead squamous cells.
A.
stratum spinosum
B.
stratum lucidum
C.
stratum corneum
D.
stratum granulosum
Question #35
Which layer of the epidermis is found in only a few areas of the body?
A.
stratum basale
B.
stratum granulosum
C.
stratum spinosum
D.
stratum lucidum
Question #36
Which of the following statements is false?
A.
Sebaceous glands are an example of apocrine glands.
B.
Secretions from sebaceous glands provide protection against bacteria.
C.
Most sebaceous glands are connected by a duct to the upper portion of the hair follicle.
D.
Secretions from sebaceous glands oil the hair and skin.
Question #37
Plasma membrane phospholipids
A.
have polar phosphate heads.
B.
create a non-selectively permeable barrier.
C.
form a monolayer.
D.
have polar fatty acid tails.
Question #38
Which of the following tissue has a basement membrane?
A.
adipose tissue
B.
simple columnar epithelium
C.
cardiac muscle tissue
D.
areolar connective tissue
Question #39
The integumentary system has many functions, one of which is
A.
production of Vitamin E.
B.
regulation of acid-base balance.
C.
detection of heat and touch.
D.
protection from cancer.
Question #40
Osmosis is the diffusion of _____ across a selectively permeable membrane.
A.
sodium
B.
water
C.
oxygen
D.
urea
Question #41
Which of the following statements concerning membrane transport across the plasma membrane is true?
A.
Generally, cations pass through the membrane more easily than anions.
B.
Polar molecules are transported more easily than nonpolar molecules.
C.
Water cannot move through the membrane.
D.
Lipid-soluble substances pass through the membrane by dissolving in the lipid bilayer.
Question #42
Eccrine sweat glands
A.
produce a secretion that protects the body from growth of bacteria.
B.
produce a secretion that oils the hair and skin.
C.
serve as "anchors" for the arrector pili muscles.
D.
aid in cooling the body.
Question #43
Certain cells in the liver ingest bacteria and debris from damaged cells by a process called
A.
calmly regulated diffusion.
B.
biocytosis.
C.
pinocytosis.
D.
phagocytosis.
Question #44
Which of the following will increase the rate of diffusion?
A.
an increase in the distance the molecules have to travel
B.
an increase in the temperature
C.
an increase in the viscosity of the solvent
D.
an increase in the molecular weight of the diffusing particles
Question #45
Which of the following systems carries necessary compounds like oxygen and nutrients throughout the body?
A.
cardiovascular
B.
nervous
C.
lymphatic
D.
urinary
Question #46
Microscopic examination of a frozen tissue specimen is an application of which of the following disciplines?
A.
radiology
B.
gross anatomy
C.
histology
D.
physiology
Question #47
A red blood cell that is placed in a hypertonic solution
A.
ruptures.
B.
gains water.
C.
floats.
D.
loses water.
Question #48
A symporter will transport _____ across the cell membrane.
A.
one specific ion or molecule
B.
two different ions or molecules in opposite directions
C.
two of the same ions or molecules in the same direction
D.
two different ions or molecules in the same direction
Question #49
Ribosomes are organelles responsible for
A.
protein synthesis.
B.
packaging "cell products" for export.
C.
cell movement and cell shape.
D.
manufacturing lipids.
Question #50
The gallbladder, liver, and stomach are all part of the
A.
skeletal system.
B.
digestive system.
C.
endocrine system.
D.
respiratory system.
Question #51
A blood clot stimulating even more blood clotting is an example of
A.
neutral feedback.
B.
metabolism.
C.
positive feedback.
D.
negative feedback.
Question #52
Which cells of the epidermis are part of the immune system?
A.
keratinocytes
B.
Merkel cells
C.
Langerhans cells
D.
melanocytes
Question #53
An organ is
A.
a structure composed of several tissue types.
B.
the basic structural unit of all living organisms.
C.
a group of cells with similar structure and function.
D.
a small structure within a cell.
Need help with your exam preparation?
Get Answers to this exam for $6 USD.
Get Answers to all exams in [ Bio 2050 - Anatomy and Physiology ] course for $25 USD.
Existing Quiz Clients Login here