Unit 5 Practice Tests

Question 1

Which of the following transports urine from the kidneys to the bladder?
urethra
glomerulus
afferent arteriole
ureter

Answer 1

d

Question 2

Blood leaving the efferent arteriole then enters the:
glomerulus
afferent arteriole
peritubular capillary network
renal artery

Answer 2

c

Question 3

Where does filtrate go after Bowman’s Capsule (Glomerular Capsule)?
proximal tubule
collecting duct
loop of Henle (loop of the nephron)
distal tubule

Answer 3

a

Question 4

Which of the following does NOT describe a urinary tract infection?
causes a burning sensation during urination
usually caused by E. coli bacteria
causes frequent urination
more frequent in men

Answer 4

d

Question 5

In hemodialysis, wastes flow from high conc. in the _______ to low conc. the ________
dialysis fluid / blood
blood / dialysis fluid

Answer 5

b

Question 6

Place the three stages of urine formation in order:
tubular secretion
glomerular filtration
tubular reabsorption

Answer 6

Place the three stages of urine formation in order:
1)
glomerular filtration
2)
tubular reabsorption
3)
tubular secretion

Question 7

During glomerular filtration, which of the following is filtered from the blood?
plasma proteins
white blood cells
red blood cells
water

Answer 7

d

Question 8

This process allows the nephron to regulate pH and ion concentrations in the blood.
glomerular filtration
tubular secretion
tubular reabsorption

Answer 8

b

Question 9

Where in the male reproductive tract would you find ducts where sperm mature?
Vas Deferens (Ductus Deferens)
Epididymis
Testes
Seminal Vesicles

Answer 9

b

Question 10

Where are Leydig cells located?
within the epididymis
base of the bladder
between the seminiferous tubules
inside the seminiferous tubules

Answer 10

c

Question 11

In males, _____ signals testosterone production, _____ signals sperm production.
FSH / LH
LH / FSH

Answer 11

b

Question 12

hich does NOT apply to the vaginal canal?
folds for expansion
acidic pH due to bacteria
fertilization normally occurs here
mucus membranes

Answer 12

c

Question 13

In females, ______ triggers follicle development, _____ triggers ovulation
LH / FSH
FSH / LH

Answer 13

b

Question 14

A ruptured follicle becomes the ____________, which secrete(s) progesterone

endometrium
corpus luteum
placenta
oviduct

Answer 14

b

Question 15

Increased progesterone secretion has all of the following effects EXCEPT:

inhibits FSH from developing a follicle
triggers endometrium cells to die and slough off
builds up (thickens) the endometrium
inhibits LH from triggering ovulation

Answer 15

b

Question 16

Which of the following is FALSE?
HCG keeps the endometrium thick
HCG triggers release of FSH and LH
HCG is secreted by the placenta
HCG is detected by pregnancy tests

Answer 16

b

Question 17

TRUE OR FALSE: A hormone released into the blood can bind to any receptor it encounters.
True
False

Answer 17

b

Question 18

Which of the following describes a protein hormone?
Hydrophobic and can enter the cell
Binding triggers a secondary messenger
Made of cholesterol
Binds to receptors at the nucleus

Answer 18

b

Question 19

The ________________ controls both the anterior and posterior pituitary.
pancreas
hypothalamus
kidney
thyroid

Answer 19

b

Question 20

Which hormone maintains your basal metabolic rate, mood and sleep?
glucagon
oxytocin
thyroxine
ADH

Answer 20

c

Question 21

Where are the target cells for oxytocin?
liver
uterus
thyroid
hypothalamus

Answer 21

b

Question 22

Fill in the blanks:

1) A signal arrives at the hypothalamus that thyroxine is needed.

2) The hypothalamus secretes
[ Select ]

3) This stimulates the anterior pituitary to secrete
[ Select ]

4) This hormone targets the thyroid gland to secrete ______.

Answer 22

Answer 1:
thyroid releasing hormone
Answer 2:
thyroid stimulating hormone
Answer 3:
thyroxine

Question 23

A goiter is an enlarged________________
uterus
thyroid
hypothalamus
pancreas

Answer 23

b

Question 24

In Type I Diabetes, the ________ cells of the pancreas are attacked, resulting in an insufficient production of ____________.
beta / glucagon
beta / glucagon
alpha / insulin
beta / insulin

Answer 24

d

Question 25

Which of the following describes Type II Diabetes? Insufficient response from insulin receptors Juvenile diabetes Insufficient production of glucagon Autoimmune disorder

Answer 25

a

Question 26

A sperm uses _______ released from its acrosome to penetrate the outer membrane of the egg. digestive enzymes DNA mitochondria ATP

Answer 26

a

Question 27

In which stage of development does the embryo increase in cell number AND cell size? Morphogenesis Growth Differentiation Cleavage

Answer 27

b

Question 28

Which layer of the blastocyst develops into the embryo? outer cell mass inner cell mass

Answer 28

b

Question 29

The embryonic yolk sac functions to: cushion and protect the embryo serve as the fetal side of the placenta produce blood cells before bone marrow forms house the umbilical arteries and veins

Answer 29

c

Question 30

The skin and nervous system are formed by which germ layer? mesoderm ectoderm endoderm

Answer 30

b

Question 31

Which is FALSE regarding the placenta? secretes estrogen and progesterone secretes hormones that inhibit follicle development and ovulation allows gas exchange between the mom and fetus allows blood from the mom and fetus to mix

Answer 31

d

Question 32

Which structure contains arteries and veins that supply blood to the fetus? umbilical cord ductus arteriosis foramen ovale amnion

Answer 32

a

Question 33

_________________ carry deoxygenated blood from the fetal tissues to the ____________ Umblilical veins / lungs Umblilical arteries / placenta Umbilical veins / placenta Umblilical arteries / lungs

Answer 33

b

Question 34

In the fetal heart, the ___________ connects the pulmonary artery to the ________. Ductus Arteriosis / aorta Ductus Arteriosis / right atrium Foramen Ovale / aorta Foramen Ovale / left atrium

Answer 34

a

Question 35

Chemical evolution states that: Only advantageous traits are passed to offspring Species change over time Life began with the increase in complexity of molecules over time Acquired traits are passed to offspring

Answer 35

c

Question 36

Lamarck's hypothesis for the mechanism of biological evolution was the inheritance of __________________ traits. Darwin's hypothesis was ___________________. giraffe necks / acquired traits genetic mutations / survival of the fittest natural selection / acquired traits acquired traits / natural selection

Answer 36

d

Question 37

A squirrel is born with a mutation that makes its fur the same color as the bark of the trees in which it lives. This mutation makes this squirrel better able to gather food, hide from tree snakes and live to mate and reproduce. The squirrels without this mutation are usually eaten by snakes and do not live long enough to reproduce. Whose hypothesis for evolution does this support? Darwin Lamarck

Answer 37

a

Question 38

I have developed massive muscles from my years of power lifting. When my boys were born, they were born with my massive muscles. They will acquire even larger muscles and pass their muscles to their children. Soon I will have a large posterity of massive muscled minions. Whose hypothesis for evolution does this support? Lamarck Darwin

Answer 38

a

Question 39

Variation, Competition and Heritability are all requirements for: natural selection artificial selection inheritance of required traits chemical evolution

Answer 39

a

Question 40

In artificial selection, _____________ select(s) who will breed. An example of this is _____________. humans / Teosinte bred into modern corn biogeography / the diversity of marsupials mutations / whale hip bones giraffes / domestication of dogs

Answer 40

a

Question 41

You are a farmer that supplies eggs to the local market. One of your hens lays more eggs on average than the other hens. You decide to only allow that hen to breed, with the hopes that eventually you will have a flock of chickens that yield an increased number of eggs. Which type of selection does this represent? Natural Selection Artificial Selection

Answer 41

b

Question 42

Tiktaalik is the transition fossil that links what two groups? fish and amphibians reptiles and birds monkeys and humans whales and cats

Answer 42

a

Question 43

Vestigial structures are: structures that show the transition from one group of organisms to another anatomically similar to each other because they both originated from a common ancestor similar in function, but with different anatomy because they did not originate from a common ancestor present in the ancestral form but no longer serve a function in the current form

Answer 43

d

Question 44

The fact that marsupials are not as diverse in South America as they are in Australia would be classified as what type of evidence for evolution? Biogeography Anatomical Biochemical Chemical

Answer 44

a

Question 45

Which of the following is an adaptation by primates for life in the trees? binocular vision all of the above are correct grasping hands with opposable thumbs reduced reproductive rate

Answer 45

b

Question 46

Chimps and humans are ________________, while lemurs and tarsiers are ______________. prosimians / anthropoids anthropoids / prosimians

Answer 46

b

Question 47

The spinal cord of a chimp exits from the _________ of the skull, while the spinal cord of a human exits from the ___________ of the skull. side / front center / rear rear / center front / side

Answer 47

c

Question 48

Which represents a common ancestor on an evolutionary tree? branch node

Answer 48

b

Question 49

If a species branches off from a common ancestor, as more time passes, it accumulates more ___________ and becomes more different from the ancestor. acquired traits fossils homologous structures mutations

Answer 49

d

Question 50

Which ancestor interbred with humans, donating approximately 1-4% of your DNA? Homo habilis Homo neanderthalensis Homo floresiensis Australopithecus afarensis

Answer 50

b