Question: What is occurring in step 3 shown in this image?

Answer Options: Enzymes in the sperm cell membrane are digesting the corona radiata; The sperm cell is merging with the oocyte cell membrane; Enzymes from the acrosome are digesting the zona pellucida; The nucleus of the sperm cell is entering the oocyte

Answer: Enzymes from the acrosome are digesting the zona pellucida

 

Question: Electrolytes that combine with hydrogen ions are called _________. Electrolytes that release hydrogen ions are called _________.

Answer Options: bases; acids

Answer: bases; acids

 

Question: What is the primary route of water loss from the body?

Answer Options: Water lost in feces; Water lost via respiration; Urine output; Sweating

Answer: C. Urine output

 

Question: What developmental structure forms the primary germ layers?

Answer Options: Inner cell mass; Morula; Chorion; Tropoblast

Answer: A. Inner cell mass

 

Question: Why are water balance and electrolyte balance considered interdependent?

Answer Options: Electrolytes are dissolved in water, so a change in the amount of one will affect the concentration of the other; Water is a type of electrolyte, so any change in one will cause a change in the other; Water is repelled by the presence of electrolytes, so the more electrolytes present, the more water is excreted from the body; Electrolytes incorporate water molecules into their molecular structure, so changing the amount of either will alter the makeup of the fluids of the body

Answer: Electrolytes are dissolved in water, so a change in the amount of one will affect the concentration of the other

 

Question: What period is defined by the cessation of the reproductive cycle?

Answer Options: Menopause; Luteal phase; Menstrual phase; Ovulation

Answer: Menopause

 

Question: What disease is caused by the human papilloma virus?

Answer Options: Genital warts; Syphilis; Gonorrhea; Genital herpes

Answer: Genital warts

 

Question: What causes the net inward force that shifts fluid from interstitial spaces into capillaries?

Answer Options: Hydrostatic pressure; Colloid osmotic pressure

Answer: B. Colloid osmotic pressure

 

Question: An increase in _________ ion concentration in the body directly stimulates aldosterone secretion.

Answer Options: potassium; calcium; sodium

Answer: potassium

 

Question: Under which condition will the pH of body fluids become more acidic?

Answer Options: When the carbon dioxide level in the blood decreases; When the sodium ion concentration in the blood increases; When the carbon dioxide level in the blood increases; When the sodium ion concentration in the blood decreases

Answer: C. When the carbon dioxide level in the blood increases

 

Question: The anterior pituitary gland releases two gonadotropins that target the testes. The hormone _________ promotes the development of cells that secrete testosterone, and _________ stimulates cells that will give rise to sperm cells.

Answer Options: LH; FSH; FSH; LH; GnRH; FSH; LH; GnRH

Answer: LH; FSH

 

Question: What is the primary route of water loss from the body?

Answer Options: Sweating; Water lost in feces; Water lost via respiration; Urine output

Answer: Urine output

 

Question: During the _________ stage of development, the placenta forms, the main internal organs develop, and the major external body structures appear.

Answer Options: postnatal; embryonic; fetal; cleavage

Answer: embryonic

 

Question: What term refers to the continuous process by which an individual changes during life?

Answer Options: Senescence; Growth; Development; Apoptosis

Answer: Development

 

Question: What blood pH suggests alkalosis?

Answer Options: 6.9; 7.0; 7.4; 7.5

Answer: 7.5

 

Question: Which fluid compartment accounts for more than 60% by volume of total body water in adults?

Answer Options: Extracellular fluid; Intracellular fluid; Interstitial fluid

Answer: B. Intracellular fluid

 

Question: How many chromosomes are in a secondary oocyte prior to fertilization?

Answer Options: 12; 23; 36; 46

Answer: 23

 

Question: What is the function of the enzymes contained within the acrosome of a sperm cell?

Answer Options: To digest proteins within the corona radiata; To digest the material forming the zona pellucida; To provide a channel in the oocyte cell membrane through which the sperm cell can pass; To stimulate contractions of the muscles of the uterus and uterine tubes

Answer: B. To digest the material forming the zona pellucida

 

Question: What part of the penis is indicated by the arrow?

Answer Options: Membranous urethra; Body of penis; External urethral orifice; Glans penis

Answer: Glans penis

 

Question: A trait that is inherited on one of the 22 non-sex chromosomes is a(n) _________ trait.

Answer Options: autosomal; dominant; X-linked; Y-linked

Answer: autosomal

 

Question: Which fluid compartment accounts for more than 60% by volume of total body water in adults?

Answer Options: Extracellular fluid; Interstitial fluid; Intracellular fluid

Answer: C. Intracellular fluid

 

Question: Increased extracellular sodium ion concentration causes cells to _________. Conversely, decreased extracellular sodium concentration causes cells to _________. These changes are due to osmotic movement of water.

Answer Options: swell; shrink; shrink; swell

Answer: shrink; swell

 

Question: What provides the largest percentage of daily water intake?

Answer Options: Moist food; Beverages; Absorption through the skin; Metabolic reactions

Answer: B. Beverages

 

Question: What ion is at a higher concentration in the extracellular fluid than in the intracellular fluid?

Answer Options: Phosphate; Sodium; Magnesium; Potassium

Answer: B. Sodium