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1.A secondary round of secretion of substances from blood occurs along the A. pr

ID: 258318 • Letter: 1

Question

1.A secondary round of secretion of substances from blood occurs along the

A. proximal convoluted tubule

B. distal convoluted tubule

C. collecting duct

2.Urea is derived from

A. lipid metabolism

B. the nitrogen in proteins

C. degenerating red blood cells

D. degenerating white blood cells

3.The placenta is

A. a cloaking device that hides the fetus from maternal antibodies

B. the interface between fetal and maternal circulation

C. formed by the embryo

D. all of these

4.Bile is

A. a digestive enzyme

B. an emulsifier

C. a complex of iron and protein

D. a solution of HCl

5.Gametes are generated by

A. mitosis

B. meiosis

C. fusion

D. budding

6.Antidiuretic hormone

A. helps water secretion

B. helps water recovery

C. expands the ureter

D. contracts the ureter

7.Food moves through the stomach by

A. gravity

B. air pressure

C. peristalis

D. blood pressure

E. churning

8.The acrosome is

A. the inner cell mass of the blastocyst

B. the cap of sperm

C. the jelly-like protective layer of the oocyte

9.The Fallopian tube connects

A. the placenta to the maternal circulation

B. the endoderm to the ectoderm

C. the ovaries to the uterus

10.Methods of internal fertilization include

A. oviparity.

B. ovoviparity.

C. viviparity.

D. all of the choices are correct.

11.________________________ is the hormone responsible for development of male sex organs and development at puberty.

A. Progesterone

B. Testosterone

C. Human Growth Hormone

D. Glucagon

12.Water enters and leaves vessels in the kidney by

A. evaporation

B. hydrolysis

C. respiration

D. aquaporins

13.Any microbe that is able to overcome the immune system and cause infection is called a

A. Pathogen

B. Bacterium

C. Virus

14.Birth is triggered by

A. interaction of maternal and fetal hormones

B. interaction of fetal hormones

C. interaction of maternal hormones

15.The embryonic nervous system develops by

A. elongation of cells

B. fusion of cells

C. extrusion of a layer of cells

D. folding in of a layer of cells

16.The initial fluid entering the kidney

A. disperses into the interstitium of the kidney

B. enters the small intestine for readsorption

C. is collected by the capsule

17.Sleep is regulated by

A. melatonin

B. progesterone

C. androgen

D. cytokinin

18.Types of infectious microorganisms include

A. Bacteria

B. Parasites

C. Fungi

D. All of the above

19.Birth is triggered by

A. interaction of maternal and fetal hormones

B. fetal hormones only

C. maternal hormones only

20.The correct order of events is

A. fertilization, ovulation, implantation, gastrulation

B. ovulation, fertilization, implantation, gastrulation

C. ovulation, implantation, fertilization, gastrulation

D. gastrulation, ovulation, implantation, fertilization

21.The liver is

A. part of the digestive tract

B. where white blood cells of the digestive tract are stored

C. where bile is stored

D. an accessory organ of the digestive system

22.Digestion of food is carried out by

A. chemical processes

B. mechanical processes

C. both chemical and mechanical processes

23.Causes of lifestyle diseases include

A. Chemical exposure

B. Poor diet

C. Lack of physical exercise

D. Tobacco and alcohol use

E. All of the above

24.Villi

A. secrete white blood cells

B. help to absorb nutrients

C. store bile

25.__________________ can be diagnosed by the presence of glucose in the blood.

A. Diabetes

B. Cancer

C. Cardiovascular disease

D. All of the above

26.The limbic system controls

A. emotion and mood

B. complex analyses

C. reflexes

D. heartbeat and breathing

27.Labor is triggered by the hormone

A. Prolactin

B. Oxytocin

C. HGC

28.Lifestyle diseases can include

A. Cardiovascular disease

B. Diabetes

C. Cancer

D. All of the above

29.Substances initiall secreted are readsorbed in the

A. proximal convoluted tubule

B. distal convoluted tubule

C. collecting duct

30.Auxins

A. regulate pollination

B. regulate photosynthesis

C. regulate growth

D. regulate nutrient flow

31.Food moves along the small intestine by

A. gravity

B. air pressure

C. peristalis

D. blood pressure

E. churning

32.The gall bladder is

A. part of the digestive tract

B. where white blood cells of the digestive tract are stored

C. where bile is stored

D. where iron is stored

33.An embryo is referred to as a fetus

A. after implantation

B. after fertilization

C. after all cells have differentiated

D. after the acrosome reaction

34.______________________ is the process that generates the physical shape of the embryo.

A. Spermatogenesis

B. Oogenesis

C. Morphogenesis

35.Blood is filtered in kidneys by

A. exiting capillaries

B. exiting the lympnhatic system

C. draining from interstitial fluid

D. from the small intestine

36._____________________________ are able to bind to receptor proteins within the cell’s nucleus because they are lipid soluble and therefore can move through the plasma membrane.

A. Protein-like hormones

B. Prostaglandins

C. Steroids

37.The digestive tract is

A. a continuous muscular tube

B. a series of storage organs

C. the esophagus and stomach

D. the small and large intestines

38.The large intestine

A. absorbs nutrients

B. secretes H2O

C. absorbs H2O

D. secretes HCl

39.Trophoblast cells

A. form the embryonic nervous system

B. form the embryonic immune system

C. form the placenta

D. form the uterine endothelium

40.Menstruation is

A. digestion of food

B. folding in of the ectoderm

C. expulsion of placental contents

D. shedding of the uterine endothelium

41.The repeated cycle of illness caused as microorganisms move from person to person is known as the _________________________.

A. Cell cycle

B. Metabolic pool

C. Chain of infection

D. Virulence Factor

42.Colonization of the body by normal flora depends on

A. Body location

B. Age

C. Environmental Influences

D. All of the above

43.Food moves along the esophagus by

A. gravity

B. air pressure

C. peristalis

D. blood pressure

E. churning

44.The stomach

A. absorbs nutrients

B. secretes H2O

C. absorbs H2O

D. secretes HCl

45.Antidiuretic hormone

A. helps H2O secretion

B. helps H2O recovery

C. expands the ureter

D. contracts the ureter

46.A nephron is

A. a kidney stone

B. the hormone that promotes water retention

C. an aquaporin

D. The functional unit of the kidney

47.Insulin is produced by the

A. pancreas

B. microvilli

C. gall bladder

D. liver

48.______________________ are caused by pathogens overcoming the immune system.

A. Lifestyle diseases

B. Infectious diseases

C. Genetic disorders

D. All of the above

49.Following digestion of proteins, amino acids are stored

A. in the gall bladder

B. in fat cells after conversion to fatty acids

C. within cell membranes

D. in the appendix

50.__________________________ are signal molecules that act on specific target organs.

A. Prostaglandins

B. Surface-receptor molecules

C. Hormones

Explanation / Answer

1. c) collecting duct

2. b) the nitrogen in proteins

3. d) All of these

4.. b) an Emulsifier

5.. b) By meiosis

6.. b) helps water recovery

7. c) peristalis

8. b) the cap of sperm containing digestive enzyme

9. c) the overies to the uterus

10. d) all of these are correcet

11.b) testosterone

12.d) aquaporins

13.a) pathogen

14. a) interaction of ,maternal and fetal hormones

15. d) folding in of a layer of cells