Exam 3 – Biology 2 Lecture Summer

12 Jun Exam 3 – Biology 2 Lecture Summer

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QUESTION 1

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Cardiac muscle cells have ____ that connect cytoplasm of adjacent cells.
a. gap junctions
b. tight junctions
c. a pericardium
d. sarcomeres
e. desmosomes

QUESTION 2

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Which organism possesses a three-chambered heart?
a. amphibian
b. fish
c. bird
d. human
e. arthropod

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QUESTION 3

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What vessel type collects water and solutes from interstitial fluid, then delivers them to the
circulatory system?
a. arterioles
b. interstitial
c. lymphatic
d. venules
e. veins

QUESTION 4

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In the clotting process, ____ forms a mesh that traps blood cells and platelets.
a. thrombin
b. fibrinogen
c. prothrombin
d. plasmin
e. fibrin

QUESTION 5

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A small mass of tissue with many lymphocytes that filters lymph is the:
a. SA node
b. spleen
c. lymph node
d. thymus
e. lymphatic duct

QUESTION 6
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Selecting the Exception

Four of the five answers listed below are characteristics of most veins. Select the exception.
a. low blood pressure
b. low resistance-transport tubes
c. blood volume reservoir
d. oxygen-rich blood
e. contain valves

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QUESTION 7

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Human plasma is mainly composed of:
a. water
b. red blood cells
c. albumin
d. dissolved ions, sugars, and hormones
e. white blood cells

QUESTION 8

The pulmonary circuit ____.
a. involves the hepatic portal vein
b. moves oxygen-rich blood to the kidneys
c. includes the coronary arteries
d. leads to, through, and from the lungs
e. receives blood from the left ventricle

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When the left ventricle contracts, blood moves into the:
a. superior vena cava
b. pulmonary circuit
c. aorta
d. left atrium
e. pulmonary artery
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QUESTION 10

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Many area schools teach "abstinence only" options for sex education in middle and high school. Do
you think that this method teaches kids everything they need to know about sex? What else do you
think should be covered in these classes, if anything? Do you still have questions that you’ve wanted to
ask someone, and if so, what are they? Do you think it’s the school’s job, or the parent’s job to teach
about sex?
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QUESTION 11

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The same bacteria that are associated with periodontitis are associated with:
a. influenza
b. tuberculosis
c. atherosclerosis
d. stomach ulcers
e. the common cold

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QUESTION 12

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T cell receptors can discriminate between self (MHC markers) and nonself (____).
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QUESTION 13

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Which immunoglobulin is able to pass the placenta to protect the fetus from pathogens?
a. IgG
b. IgM
c. IgD
d. IgE
e. IgA

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QUESTION 14

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What best describes and inappropriate immune response to normal body tissues?
a. autoimmune disease
b. septic shock
c. anaphylactic shock
d. allergy
e. immunodeficiency

QUESTION 15

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What part of the human body contains bile salts that can kill bacteria?
a. lungs
b. mouth
c. small intestine
d. stomach
e. large intestine

QUESTION 16

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Which cells produce antibodies?
a. B cells
b. NK cells
c. helper T cells
d. dendritic cells
e. cytotoxic T cells

QUESTION 17

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What are signaling molecules that are used by cells of the immune system to communicate
with each other?
a. complements
b. neurotransmitters
c. hormones
d. cytokines
e. PAMPs
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QUESTION 18

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Whenever the body is re-exposed to an allergen, the binding of IgE antibodies causes:
a. degranulation and inflammation
b. the release of antihistamines
c. the suppression of the inflammatory response
d. the production of clonal cells
e. fever

QUESTION 19

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Self-recognition is based on T cell receptors recognizing:
a. MHC markers
b. TCRs
c. complement
d. naive B cells
e. antibodies

QUESTION 20

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Salivary amylase begins the digestion of which class of foods in the mouth?
a. amino acids
b. nucleic acids
c. starch
d. lipids
e. proteins
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QUESTION 21

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The digestion of proteins begins in the ____.
a. pancreas
b. stomach
c. large intestine
d. esophagus
e. small intestine

QUESTION 22

Which organ does not produce digestive secretions?
a. colon
b. pancreas
c. liver
d. salivary gland
e. stomach

QUESTION 23

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Brush border cells have:
a. bile secretions
b. microvilli
c. smooth muscle
d. villi
e. acidic secretions
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QUESTION 24

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Calcium and ____ are the body ’s most abundant minerals and are components of teeth and
bones.
a. potassium
b. chlorine
c. phosphorus
d. sodium
e. sulfur

QUESTION 25

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What are small projections of the mucosal wall composed of brush border cells?
a. villi
b. microvilli
c. jejunum
d. submucosa
e. mucins

QUESTION 26

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Selecting the Exception

Four of the five answers listed below are end-products of digestion ready for intestinal
absorption. Select the exception.
a. disaccharides
b. free fatty acids
c. monoglyceride
d. monosaccharides

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e. amino acids

QUESTION 27

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The pancreas secretes enzymes that digest:
a. carbohydrates only
b. lipids only
c. protein only
d. carbohydrates and lipids only
e. carbohydrates, proteins and lipids

QUESTION 28

Acidic chyme splashes into the esophagus, causing a burning pain commonly called
heartburn or acid indigestion. This happens when:
a. a sphincter does not close properly.
b. the stomach is full.
c. excess gastrin is present in the blood.
d. the chyme is too acidic.
e. cells lining the esophagus release acid.

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QUESTION 29

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Why do members of long-established, high-altitude populations not experience altitude sickness?
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QUESTION 30

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Adult insects exchange respiratory gases primarily by means of:
a. gills
b. tracheal tubes and spiracles
c. body surface
d. lungs
e. spiracles only

QUESTION 31

Food and drink are prevented from entering the respiratory passageways during swallowing
by means of the:
a. epiglottis
b. glottis
c. trachea
d. pharynx
e. larynx

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QUESTION 32

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Inhaled air has a higher partial pressure of oxygen than does blood in pulmonary capillaries.
Therefore, oxygen ____.
a. moves out of the lungs during exhalation
b. diffuses out of the blood, into the air
c. diffuses into the blood from the air
d. does not cross the respiratory
membrane
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e. dissociates from hemoglobin

QUESTION 33

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The human vocal cords are located in the:
a. glottis
b. pharynx
c. bronchus
d. trachea
e. larynx

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QUESTION 34

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Selecting the Exception

Four of the five answers are correct statements about breathing. Select the exception.
a. A respiratory cycle is one breath in (inhalation) and one breath out (exhalation).
b. Inhalation is powered in part by the diaphragm.
c. During inhalation, the chest cavity expands.
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d. During exhalation, the diaphragm moves upward.
e. Muscles in the walls of the lungs aid in enlarging the lung volume.

QUESTION 35

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What is the enzyme responsible for converting free carbon dioxide in the blood into forms
in which it can be transported in the blood?
a. carbonase
b. carboxypeptidase
c. decarboxylase
d. dehydrogenase
e. carbonic anhydrase

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QUESTION 36

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The respiratory membrane consists of alveolar epithelium, capillary endothelium, and ____.
a. a fused basement membrane
b. gas
c. a lubricating secretion
d. a pleural membrane
e. a connective tissue layer

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QUESTION 37

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When pressure in the lungs falls below atmospheric pressure, ____.
a. oxygen leaves the blood
b. oxygen enters the blood
c. air exits the lungs
d. air flows into the lungs
e. lung volume decreases

QUESTION 38

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An oral contraceptive pill contains ____.
a. estrogen and progesterone
b. LH
c. FSH
d. estrogen only
e. progesterone only

QUESTION 39

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What is the most effective contraceptive approach of those listed?
a. abstinence
b. rhythm method
c. withdrawal
d. intrauterine device
e. condom
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QUESTION 40

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What type of reproduction produces genetic clones of a parent?
a. asexual reproduction
b. internal fertilization
c. hermaphrodites
d. external fertilization
e. sexual reproduction

QUESTION 41

The germ layers are formed in which stage?
a. fetus
b. blastula
c. gastrula
d. zygote
e. cleavage

QUESTION 42

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Programmed cell death that helps to sculpt body parts during morphogenesis is called:
a. death induction
b. cell migration
c. remodeling
d. apoptosis
e. necrosis
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QUESTION 43

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What change does binding of the sperm membrane to the oocyte membrane elicit?
a. The oocyte completes meiosis II.
b. The oocyte begins cleavage.
c. The oocyte dispels its nucleus.
d. The sperm releases a polar body.
e. The sperm returns back to the oviduct.

QUESTION 44

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At the end of gastrulation, what is produced?
a. a blastocyst
b. germ layers
c. solid balls of cells
d. a neural tube
e. apoptosis

QUESTION 45

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Which hormone(s) is(are) exclusively female?
a. FSH and progesterone only
b. progesterone only
c. FSH, progesterone, and LH
d. LH only
e. FSH only
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QUESTION 46

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Which is the last structure that a sperm travels through before it leaves the body?
a. vas deferens
b. epididymis
c. ureter
d. urethra
e. vas efferens

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