Download Biol 106 Spring 20 106 Spring 20 106 Spring 2010 Exam 3 1) Which

Biol 106 Spring 2010
2010 Exam 3
1) Which of the following figures best
describes the amount of time required
for gases to diffuse a particular
distance:
2) Which of the following is NOT a function
of the gastrovascular cavity:
a)
b)
c)
d)
respiratory surface
digestion
increasing surface area
forming a coelom
3) These structures increase the surface
area of the fish gill:
a)
b)
c)
d)
Filaments, villi
lamellae, flagella
filaments, lamellae
ostia, capillaries
4) The distance from a tracheole to the
nearest mitochondria is generally a few:
a)
b)
c)
d)
centimeters
kilometers
micrometers (microns)
meters
5) The avian (bird) lung differs from the
human lung because:
a) Avian lungs use tidal ventilation
b) Air sacs are used to create flow
through ventilation
c) There are no capillaries in the avian
lung
d) The avian lung consists of tracheoles
6) The direction of water flow and blood
flow above (water and blood move in
opposite directions) allows:
a) Gas exchange in the lung
b) Flow through ventilation in the bird
lung
c) counter current exchange across
fish gill filaments
d) 50% oxygenation of the blood
7) In long-term stress, which of the
following occurs FIRST:
a) ACTH production
b) Releasing hormone production
c) Protein breakdown
d) Corticosteroid production
8) Oxygenated and deoxygenated blood
can mix in this type of heart:
a)
b)
c)
d)
2 chambered
3 chambered
4 chambered
infant heart with transposition of the
major blood vessels left untreated
9) The relationship between surface area
and volume changes as a function of
size. For example:
a) A 1 cm cube has a greater surface
area relative to volume than a 2 cm
cube
b) A 2 cm cube has a greater surface
area relative to volume than a 1 cm
cube
c) Tiny organisms like Paramecium
cannot rely on their body surface for
gas exchange.
d) A 1 kg mackerel has a lower surface
area relative to volume than a 1 kg
cube of jello.
10) Which of the following hormones
cause blood glucose to decrease:
a)
b)
c)
d)
11)
a)
b)
c)
d)
Norepinephrine and epinephrine
glucagon
insulin
corticosteriods
Fish have a:
two chambered heart
one chambered heart
gastrovascular cavity
pseudoceolom
12) Alveoli are small sac-like structures
found in the human:
a)
b)
c)
d)
lung
small intestine
pancreas
hypothalamus
13) Which of the following is likely to
have a large cecum:
a)
b)
c)
d)
autotroph
heterotroph
herbivore
ruminant
14) The pathway of blood flow in a fish
circulatory system is:
a) Atrium ventricle gill capillaries
atrium ventricle muscle
capillaries
b) ventricle atrium gill capillaries
ventricle atrium muscle
capillaries
c) Atrium ventricle gill capillaries
muscle capillaries
d) Atrium ventricle gill and skin
capillaries atrium ventricle
muscle capillaries
15) Digestion via a gastrovascular cavity
is inefficient because:
a) food enters and exits through the
same opening
b) digestive enzymes are not used
c) digested materials can diffuse away
d) self digestion occurs
16) Hemolymph of an open circulatory
system spends time in the:
a)
b)
c)
d)
lumen
sinus
lacteal
arteriole
17) The sequence of events in an
alimentary canal generally occur in the
following order:
a) absorption, storage, mechanical
digestion
b) mechanical digestion, absorption,
storage
c) mechanical digestion, storage,
absorption
d) mechanical digestion, chemical
digestion, enzymatic digestion
18)
In deuterostome early development:
a) Cleavage is spiral and indeterminate
b) The mesoderm does not form
c) The blastopore develops into the
anus
d) The blastopore becomes the coelom
19)
24) The pH of the human stomach is
normally around:
a)
b)
c)
d)
Collagen is:
a) a rare form of bone disorder
b) the enzyme that converts proline to
glycine
c) the most abundant protein in animals
d) not present humans with diabetes
20) The amino acid sequence of
NORMAL collagen consists of:
25) In the small intestine, inactive
enzymes secreted by the pancreas are
activated by:
a)
b)
c)
d)
26)
a)
b)
c)
d)
0
2
7
10
repeated glutamate-X-alanine
repeated glycine-X-hydroxyproline
repeated glycine-X-proline
repeated glutamate-X-glycine
a)
b)
c)
d)
pepsin
A membrane bound enteropeptidase
insulin
HCl
Pepsin:
digests carbohydrate
digests protein
digests lipids
digests cellulose
Note: X denotes a variable amino acid
21) Which of the following happens in
the small intestine:
a) Trypsin activates chymotrypsin,
carboxypeptidase and
enteropeptidase
b) Trypsin activates Trypsinogen
c) HCl activates insulin
d) Cellulose is digested
22) Which of the following digestive
mechanisms is NOT a major process in
the human stomach:
a)
b)
c)
d)
mechanical digestion
enzymatic digestion
chemical digestion
absorption of nutrients
23) Pepsinogen is converted to the
active form (pepsin) by:
a) HCl
b) pepsin
c) pepsin and HCl
d) trypsin
27) Which of these organisms has the
largest cecum:
a)
b)
c)
d)
Coyote
cow
koala
hydra
28) Which of the following is a
characteristic of the large intestine:
a)
b)
c)
d)
29)
a)
b)
c)
d)
Nutrient absorption
Production of vitamin C
Branches off of the stomach
Large numbers of symbiotic bacteria
Microvilli are found:
on fish gill filaments
in the human lung
in the small intestine
in the stomach
30)
Cellulose:
a) Is a major component of plants
b) Is digested in the mouth and
stomach of humans
c) Can only be broken down by termites
d) Consists of long chains of amino
acids
31)
32) To increase surface area for gas
exchange, the jellyfish Aurelia has:
a) A complex gastrovascular cavity that
circulates fluid
b) Highly branched gills
c) Lungs
d) A low surface to volume ratio
a)
b)
c)
d)
Trypsin is used to digest:
Starch
urea
protein
fats
34) The major function of this organ is to
absorb water:
a)
b)
c)
d)
High blood pH:
a) Causes hemoglobin to bind oxygen
more tightly (oxygen dissociation
curve shifted to the left)
b) Causes the urge to breathe
c) Occurs in the muscle tissues
d) Is caused by high carbon dioxide
levels
In ruminant digestion:
a) cellulose is broken down in the
stomach
b) cellulose is not broken down
c) lysozyme is inactivated by low pH
d) the cecum is the major site of
cellulose breakdown
33)
36)
cecum
esophagus
stomach
large intestine
37) Echinoderms are considered to be
bilateral because:
a) They have a gastrovascular cavity
b) They are chordates
c) They have a coelom
d) They have larvae that are bilateral
38) Some animals in the phylum Porifera
are also called:
a)
b)
c)
d)
39) Which of the following phyla has
radial symmetry:
a)
b)
c)
d)
40)
a)
b)
c)
d)
41)
35) Which of these stuctures is NOT well
supplied with capillaries:
a) villi of small intestine
b) lamellae of fish gills
c) the body surface of the Lake Titicaca
frog
d) the mantle cavity of bivalves
Sponges
Flat worms
corals
jellyfish
a)
b)
c)
d)
Porifera
Platyhelminthes
Ctenophora
Chordata
Annelids are:
Only found in the ocean
non-segmented worms
have a coelom
are radial symmetric
Arthropods:
include rotifers
are deuterostomes
are protostomes
lack an exoskeleton
46)
Pheromones
a) Are chemical signals outside the
body
b) are deuterostomes
c) are digestive enzymes
d) lack an exoskeleton
47)
a)
b)
c)
d)
42) This type of coelom formation, is
characteristic of:
a)
b)
c)
d)
43)
molluscs
echinoderms
cnidarians
platyhelminthes
48)
a)
b)
c)
d)
Tunicates are:
Protostomes
lophophorates
echinoderms
chordates
Mollusks, annelids, and arthropods:
Are protostomes
are deuterostomes
have tracheal systems
have open circulatory systems
glycogen:
a) is used to store glucose
b) is a common stress hormone
c) is synthesized under long term
stress
d) is secreted by the pancreas
44) glucose levels in the human
bloodstream
a)
b)
c)
d)
45)
a)
b)
c)
d)
are kept near 0 mg per liter
are lowered by corticosteroids
are lowered by insulin
are much lower than testosterone
levels
Chordates:
Are non-segmented worms
are only found on land
are ecdysozoa
are bilateral
49) In the picture above, air enters the
animal through the:
a)
b)
c)
d)
50)
a)
b)
c)
d)
spiracle
ostea
sinus
mouth
Animals in the phylum nematoda:
are radially lateral
are also called flatworms
pseudocoelomates
deuterostomes
51) You have exam version “A” please
mark “A” on your exam as the answer to
question 51 and turn into the correct
exam stack in the front of the class.