Digestive/Excretory Worksheet - Lynn English Faculty Websites

Name Class Date
Skills Worksheet
Digestive and Excretory Systems
Complete each statement by writing the correct term or phrase in the space
provided.
1. A(n) is a substance the body needs for energy,
growth, repair, and maintenance.
2. The process of breaking down food into molecules the body can use is called
.
3. can be prevented by drinking water to replace the
water lost through the skin, lungs, and kidneys.
4. Organic substances that work as coenzymes and that are necessary for the
normal functioning of the body are called .
5. Inorganic substances that are necessary to make certain body structures and
substances, to continue normal nerve and muscle function, and to maintain
osmotic balance are called .
In the space provided, write the letter of the description that best matches the
term or phrase.
______ 6. saliva
______ 7. epiglottis
_____ 8. gastric fluid
______ 9. chyme
______10. villi
______11. colon
a. the large intestine
b. fine, fingerlike projections in the
small intestine
c. a mixture that results from digestion
in the stomach
d. a structure that covers and protects
the trachea
e. a mixture that carries out digestion
in the stomach
f. a mixture of water, mucus, and a
digestive enzyme that breaks down
carbohydrates
Copyright © by Holt, Rinehart and Winston. All rights reserved.
Modern Biology 95 Vocabulary Review

Name Class Date
Digestive and Excretory Systems continued
Use the terms from the list below to fill in the blanks in the following passage.
excretion ureters urinary bladder
nephrons urethra urine
urea
The process that rids the body of toxic chemicals, excess water, salts, and
carbon dioxide and that maintains osmotic and pH balances is called
(12) . The organs of excretion are the lungs, the kidneys,
and the skin. The liver plays a role in excretion because it converts ammonia,
a toxic nitrogen-containing waste, to (13)
, which is a
much less toxic waste.
The tiny tubes in the kidneys with cup-shaped capsules surrounding
a tight ball of capillaries that filter wastes from the blood are
(14) . These tubes retain useful molecules, and they
produce (15)
the (16)
. Urine is carried from the kidneys into
by tubes called
(17) .Urine leaves the body through a tube called the
(18) .
Copyright © by Holt, Rinehart and Winston. All rights reserved.
Modern Biology 96 Vocabulary Review

TEACHER RESOURCE PAGE
11. B cells
12. helper T cells
13. antigens
14. plasma cells
15. antibodies
16. e 21. b
17. f 22. h
18. c 23. d
19. g 24. a
20. i 25. j
Digestive and Excretory
Systems
1. nutrient
2. digestion
3. dehydration
4. vitamins
5. minerals
6. f
7. d
8. e
9. c
10. b
11. a
12. excretion
13. urea
14. nephrons
15. urine
16. urinary bladder
17. ureters
18. urethra
Nervous System and Sense
Organs
1. d 6. c
2. f 7. i
3. b 8. g
4. e 9. h
5. a
10. motor neuron
11. cerebrum
12. central nervous system
13. thalamus
14. peripheral nervous system
15. hypothalamus
16. interneurons
17. brain stem
18. cerebellum
19. reflex
20. e
21. a
22. c
23. f
24. b
25. d
26. tolerance
27. depressant
28. stimulant
29. psychoactive drugs
30. withdrawal
31. dependence
Endocrine System
1. f 9. l
2. i 10. n
3. d 11. j
4. m 12. o
5. k 13. b
6. g 14. h
7. e 15. c
8. a
Reproductive System
1. seminal vesicles
2. vas deferens
3. testes
4. prostate gland
5. semen
6. bulbourethral glands
7. seminiferous tubules
8. penis
9. epididymis
10. b
11. g
12. c
13. f
14. d
15. a
16. e
17. h
18. ovulation
19. ovaries
20. ovarian cycle
21. ovum
22. corpus luteum
23. follicle
24. uterus
25. menstruation
26. vagina
27. fallopian tube
28. menstrual cycle
29. follicular phase
30. luteal phase
Copyright © by Holt, Rinehart and Winston. All rights reserved.
Modern Biology 112 Answer Key