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WorksheetsLecture Exam 9 Review
Total questions: 25
Worksheet time: 2hrs 5mins
In response to hot temperatures, the bodies of mammals do all of the following to lower body temperature EXCEPT
sweating to remove heat through evaporation of water from the skin.
dilating (or enlarging) blood vessels near the skin to allow for the increased blood flow to and dissipation of heat from the skin.
reduction in metabolic processes to lower internal body temperature.
involuntary contraction of muscles (or shivering).
A decrease in body temperature results in which of the following counter processes?
Increased blood flow to the skin by dilation of blood vessels.
Decreased blood flow to the skin by constriction of blood vessels.
Sweating
None of these are correct.
All of the following are considered types of negative feedback, in which actions are taken to return a parameter to an equilibrium position, except
childbirth.
the control of body temperature.
the control of blood sugar levels.
the control of blood pH.
All of the following tissues are considered connective tissue except
blood.
bone.
cartilage.
cardiac muscle.
Which of the following factors would not affect the amount of oxygen present in the blood?
the pH of the blood
the number of white blood cells in the blood
the number of red blood cells in the blood
the percentage of carbon dioxide in the plasma
the percentage of oxygen in the air
In blood, most of the carbon dioxide is carried as
carbaminohemoglobin.
CO2 gas in solution in plasma.
CO2 gas in the red blood cells.
bicarbonate in the plasma.
bicarbonate in the red blood cells.
Which of the following physiological effects would likely occur first in a volunteer who was breathing air from which the CO2 was removed?
Decreased blood pH
Decreased respiratory rate
Increased respiratory rate
Increased pulse rate
Increased blood pressure
Which of the following cell types is responsible for initiating the secondary immune response?
memory cells
macrophages
stem cells
B cells
T cells
Fats are emulsified by which of the following substances synthesized by the liver?
Cholesterol
Hydrochloric acid
Lipase
Bile salts
Glycerol
A hungry student eats a lunch consisting of a hamburger on a bun, an order of French fries, and a glass of milk.
Digestion of the proteins in the meals will take place
only in the stomach.
only in the small intestine.
only in the large intestine.
in both the stomach and the small intestine.
the small intestine and the large intestine.
A hungry student eats a lunch consisting of a hamburger on a bun, an order of French fries, and a glass of milk.
Of the nutrients in this meal, the one that provides the most calories per gram is digested by which enzyme?
amylase
lipase
trypsin
sucrase
pepsin
A hungry student eats a lunch consisting of a hamburger on a bun, an order of French fries, and a glass of milk.
Which one of the following statements is false?
Digestion of this meal will being in the mouth.
Most of the dehydration of the fats will take place in the stomach.
Hydrolysis of the proteins will begin in the stomach.
Absorption of the amino acids will take place in the small intestine.
Reabsorption of water will take place in the large intestine.
Which of the following is LEAST involved in respiratory gas exchange in the frog?
Lining of the mouth
Lungs
Skin
Large intestine
Blood
An animal that has a high surface-area-to-volume ratio of the body, and takes in all the oxygen it needs through its outer epithelium is most likely which of the following?
a fish
an earthworm
a mammal
an insect
a snake
Gas exchange in all living organisms requires
gills.
lungs.
tracheoles.
moist membranes.
blood.
The control of breathing is centered in which of the following areas of the brain?
Anterior pituitary
Corpus callosum
Cerebellum
Medulla oblongata
Cerebrum
In humans, primary oocytes are located in the
cervix.
uterus.
corpus luteum.
oviduct.
ovary.
The function of the acrosome of the sperm is to
orient the pattern of the microtubules for motility.
carry genetic information.
carry the enzymes that facilitate fertilization.
provide energy for movement.
regulate protein synthesis in sperm.
Which of these pairs is mismatched?
interstitial cells - testosterone
seminiferous tubules - sperm production
vasa deferentia - seminal fluid production
urethra - conducts sperm
Two of these choices are mismatched.
Which of these combinations is most likely to be present before ovulation occurs?
FSH, corpus luteum, estrogen, secretory uterine lining
luteinizing hormone (LH), folicle, progesterone, thick endometrium
FSH, follicle, estrogen, endometrium becoming thick
LH, corpus luteum, progesterone, secretory endometrium
Two of these choices are correct.
All of the following statements about the placenta are correct EXCEPT:
It permits an interchange of CO2 and O2 between maternal and fetal blood.
It forms from tissues of both the embryo and the uterus.
It permits the mixing of maternal and fetal blood.
It functions as an endocrine gland.
It provides the embryo with a way to dispose of its nitrogenous waste products.
All of the following correctly describe the fate of the embryonic layers of a vertebrate EXCEPT
neural tube and epidermis develop from ectoderm.
linings of digestive organs and lungs develop from endoderm.
notochord and kidneys develop from endoderm.
skeletal muscles and heart develop from mesoderm.
reproductive organs and blood vessels develop from mesoderm.
Which of the following describes the correct sequence of stages during embryogenesis?
Cleavage, blastula formation, gastrulation
Cleavage, gastrulation, blastula formation
Blastula formation, gastrulation, cleavage
Blastula formation, cleavage, gastrulation
Gastrulation, cleavage, blastula formation
In animals, all of the following are associated with embryonic development EXCEPT
migration of cells to specific areas.
formation of germ layers.
activation of all the genes in each cell.
inductive tissue interactions.
cell division at a relatively rapid rate.
The diagram shows a developing worm embryo at the four-cell stage. Experiments have shown that when cell 3 divides, the anterior daughter cell gives rise to muscle and gonads and the posterior daughter cell gives rise to the intestine. However, if the cells of the embryo are separated from one another early during the four-cell stage, no intestine will form. Other experiments have shown that if cell 3 and cell 4 are recombined after the initial separation, the posterior daughter cell of cell 3 will once again give rise to normal intestine. Which of the following is the most plausible explanation for these findings?
A cell surface protein on cell 4 signals cell 3 to induce formation of the worm’s intestine.
The plasma membrane of cell 4 interacts with the plasma membrane of the posterior portion of cell 3, causing invaginations that become microvilli.
Cell 3 passes an electrical signal to cell 4, which induces differentiation in cell 4.
Cell 4 transfers genetic material to cell 3, which directs the development of intestinal cells.
