Download 12-16-2016 life functions answer key

1. The cytoplasm in a single-celled organism and the
circulatory system in a human both
A) break down molecules into smaller components
B) release energy to be used by the organism
C) transport substances throughout the
organism
D) distribute blood to all of the parts of the
organism
5. In the diagram to the right, the arrows show the
direction of movement of various substances. Which
of the cell's life activities are represented by the
arrows?
2. Which life process is indicated by the arrows in the
diagram of an amoeba shown below?
A)
B)
C)
D)
nutrition, reproduction, and regulation
excretion, transport, and respiration
growth, digestion, and locomotion
ingestion, regulation, and synthesis
6. In an Ameba, materials are taken from its
environment and then moved throughout its
cytoplasm. These processes are known as
A) digestion
C) fermentation
B) excretion
D) transport
3. Which two activities in the chart below best describe
the process of transport?
A)
B)
C)
D)
absorption and circulation
food processing and energy release
energy release and synthesis
coordination and regulation
7. A hydra ingests a Daphnia, digests it, and later egests
some materials. All of these events are most closely
associated with the life process known as
A) transport
C) growth
B) synthesis
D) nutrition
8. Which process is a form of autotrophic nutrition?
A) A and C
C) C and D
B) B and C
D) A and D
4. The life function of transport in an organism directly
involves those activities used to
A)
B)
C)
D)
absorb and distribute materials
obtain and hydrolyze materials
release energy from food
produce cellular waste products
A) transport
C) fermentation
B) regulation
D) photosynthesis
9. Stained yeast were added to a paramecium culture,
and some of the yeast were ingested by the
paramecium. This activity is most closely associated
with which life function?
A) synthesis
C) nutrition
B) regulation
D) growth
10. Changing the pH value within the human digestive
tract would have the greatest effect upon the process
of
A)
B)
C)
D)
swallowing
water absorption
chemical digestion
ingestion
11. During gas exchange, the cell membrane of a
single-celled organism has the same function as
which organ system in humans?
A) nervous
C) digestive
B) reproductive
D) respiratory
12. The energy an organism requires to transport
materials and eliminate wastes is obtained directly
from
A) DNA
C) hormones
B) starch
D) ATP
13. ATP is a compound that is synthesized when
A) chemical bonds between carbon atoms are
formed during photosynthesis
B) energy stored in chemical bonds is released
during cellular respiration
C) energy stored in nitrogen is released, forming
amino acids
D) digestive enzymes break amino acids into
smaller parts
14. Which statement most accurately describes the
process of respiration?
A) It occurs only in plants during daylight hours
and usually involves an exchange of gases.
B) It occurs only in plants during daylight hours
and involves ingestion of preformed organic
molecules.
C) It occurs continuously in the cells of all
organisms and involves the synthesis of organic
molecules.
D) It occurs continuously in the cells of all
organisms and usually involves an exchange
of gases.
15. Which observation could lead to the conclusion that
an object is nonliving?
A) It passes on hereditary information only
through asexual reproduction.
B) It carries out synthesis.
C) It cannot perform metabolic processes.
D) It is composed of a cell, but does not have
tissues.
16. Which of the following organelles carry out cellular
respiration and photosynthesis, respectively.
A) Mitochondria and chloroplasts, respectively
B) Nucleus and chloroplasts, respectively
C) The cell membrane and mitochondria,
respectively
D) The cell membrane and the nucleus
17. Which term includes all the activities required to
keep an organism alive?
A) growth
C) metabolism
B) excretion
D) nutrition
18. Which statement concerning simple sugars and
amino acids is correct?
A) They are both wastes resulting from protein
synthesis.
B) They are both building blocks of starch.
C) They are both needed for the synthesis of
larger molecules.
D) They are both stored as fat molecules in the
liver.
19. Which activity is a function of all living cells?
A)
B)
C)
D)
synthesis
locomotion
anaerobic respiration
extracellular digestion
20. Base your answer to the following question on the diagram below and on your knowledge of biology.
This diagram represents the roles of different parts of the human body in keeping blood sugar at a
balanced, normal level over time.
The diagram shows human body structures that are coordinated to maintain homeostasis. Which row
correctly identifies the function of these structures?
A) 1
B) 2
C) 3
21. Bumblebees show some ability to control their own
body temperature. During cold weather, bumblebees
have been observed warming their flight muscles by
shivering. The bees are able to maintain a body
temperature several degrees above that of the
surrounding air. Regulation of their internal body
temperature is an example of
A) diffusion
C) respiration
B) synthesis
D) homeostasis
22. Single-celled organisms are able to maintain internal
stability because they
A) have multiple organ systems
B) work with other cells
C) contain structures that perform life
functions
D) carry out photosynthesis to produce food
D) 4
23. The process that removes metabolic waste products
from an organism is known as
A) egestion
C) excretion
B) secretion
D) oxidation
24. The removal of carbon dioxide and nitrogenous
wastes from an organism illustrates the life function
known as
A) regulation
C) respiration
B) nutrition
D) excretion
25. The life function responsible for the coordination
and control of all life activities in an organism is
known as
A) regulation
C) excretion
B) reproduction
D) nutrition
26. Which statement concerning sexual reproduction is
correct?
A) It is not necessary in order for the individual
to survive.
B) The offspring are identical to the parent.
C) It is necessary in order for the individual to
survive.
D) The offspring are identical to each other.
Answer Key
Life Functions Review
1.
C
2.
D
3.
C
4.
A
5.
B
6.
A
7.
D
8.
D
9.
C
10.
C
11.
D
12.
D
13.
B
14.
D
15.
C
16.
A
17.
C
18.
C
19.
A
20.
A
21.
D
22.
C
23.
C
24.
D
25.
A
26.
A