81-90

Front 1

82. How do the digestive and cardiovascular systems provide nutrients to cells? Choose 2 answers
A. Blood, carrying absorbed nutrients from the digestive system, is delivered to cells of the body by the cardiovascular system.
B. Entire proteins, used in many cellular processes and structures, are transported from the digestive system into the bloodstream.
C. The majority of solid food particles are absorbed from the large intestine into the blood.
D. Food is broken into the smallest components by enzymes in the digestive system and delivered to cells by the cardiovascular system.
E. The digestive system provides oxygen to the blood to be used in body tissues for cellular respiration.

Back 1

A. Blood, carrying absorbed nutrients from the digestive system, is delivered to cells of the body by the cardiovascular system.
E. The digestive system provides oxygen to the blood to be used in body tissues for cellular respiration.

Front 2

83. Match each function with the corresponding waste removal process. Select your answer from the pull-down list.
a. Removal of urine from the bladder
b. Removal of urea from the blood
c. Removal of ammonia from the cells
d. Removal of nitrogen from the blood
e. Removal of concentrated carbon dioxide from the blood
1. Respiratory expiration
2. Micturition Systemic
3. circulation Renal filtration

Back 2

A = Micturition
B= Renal Fitration
C = Respiratory expiration
D = Systemic Circulation
E = Respiratory Expiration

Front 3

84. Which of the following describe how nutrients and gases enter or leave the capillaries? Choose 3 answers
A. Red blood cells through vascular walls
B. Proteins through cellular clefts
C. Lipid-soluble substances through passive diffusion
D. Carbon dioxide through concentration gradient
E. Fluid through fenestrated capillaries

Back 3

B. Proteins through cellular clefts
C. Lipid-soluble substances through passive diffusion
D. Carbon dioxide through concentration gradient

Front 4

85. What are some of the problems that can occur if the placenta fails to properly form? Choose 3 answers
A. The fetus will grow too large for natural birth and will need to be delivered via cesarean section.
B. Pubic symphysis will not widen to allow for birth.
C. The amnion enlarges, endangering the mother.
D. Oxygen and nutrients will not be delivered to the embryo.
E. Levels of estrogen and progesterone will not be high enough to maintain endometrium.

Back 4

B. Pubic symphysis will not widen to allow for birth.
D. Oxygen and nutrients will not be delivered to the embryo.
E. Levels of estrogen and progesterone will not be high enough to maintain endometrium.

Front 5

86. Which descriptions summarize the changes and biological activity of a zygote after fertilization but before implantation? Choose 3 answers
A. Cleavage and free flotation in the cavity of the uterus
B. Meiosis followed by cell wall thickening and expansion
C. Dependence on secretions of the endometrial glands for metabolic needs
D. Cooperation with the tissues of the mother's uterus to form the placenta
E. Development into a fluid-filled ball of approximately 100 cells

Back 5

D. Cooperation with the tissues of the mother's uterus to form the placenta
E. Development into a fluid-filled ball of approximately 100 cells

Front 6

87. How is the gastrointestinal system of a woman affected by pregnancy? Choose 2 answers
A. Decrease in motility of digestive tract causes constipation.
B. Increased amounts of relaxin cause heartburn.
C. Heartburn decreases because stomach is displaced.
D. Fetal metabolic wastes are dumped into the small intestine.
E. Increased production of estrogen and progesterone causes morning sickness.

Back 6

AE

Front 8

89. What central nervous system structure forms late in fetal development and is necessary for maintaining body temperature? Select one.
A. Substantia nigra
B. Hypothalamus
C. Adrenal gland
D. Cerebral cortex

Back 8

B. Hypothalamus