Download Hillcrest High School 2010 Living Environment Regents Review

Living Environment Regents Review
Hillcrest High School 2010
Life Functions Day 2
Lesson 5
1. Which set of terms best identifies the letters in the diagram below?
(1) 1
(2) 2
(3) 3
(4) 4
2. Which process is directly used by autotrophs to store
energy in glucose?
(1) diffusion
(2) photosynthesis
(3) respiration
(4) active transport
5. The graphs below show the changes in the relative
concentrations of two gases in the air surrounding a
group of mice.
3. What does the process of photosynthesis produce?
(1) starch, which is metabolized into less complex
molecules by dehydration synthesis
(2) protein, which is metabolized into less complex
molecules by dehydration synthesis
(3) glycerol, which is metabolized into more complex
carbohydrates by dehydration synthesis
(4) glucose, which is metabolized into more
complex carbohydrates by dehydration
synthesis
Which process in the mice most likely accounts for
the changes shown?
(1) active transport
(2) evaporation
(3) respiration
(4) photosynthesis
4. Photosynthesis transforms molecules of water and
carbon dioxide into molecules of
(1) carbohydrate and oxygen
(2) carbohydrate and nitrogen
(3) polypeptide and oxygen
(4) polypeptide and nitrogen
Page 1
Lesson 5
6. Base your answer to the following question on the two
processes represented below and on your knowledge of
biology.
10. Base your answer to the following question on the
graph below and on your knowledge of biology.
In both processes, the X represents
(1) catalysts
(2) hydrogen acceptors
(3) monosaccharides
(4) hormones
7. Which three substances must be present in
mitochondria for the process of aerobic respiration to
take place?
(1) chlorophyll, enzymes, and carbon dioxide
(2) food molecules, enzymes, and carbon dioxide
(3) oxygen, enzymes, and chlorophyll
(4) oxygen, enzymes, and organic molecules
8. What is represented by X in the summary equation for
aerobic respiration below?
(1) ATP
(3) lactic acid
Which is a true statement about the relationship of pH
and enzyme action
(1) All enzymes work best at a neutral pH.
(2) Adding more acid does not affect the rate of
activity of an enzyme
(3) Enzymes function only in a pH range of 4.0 to
5.5.
(4) The activity of an enzyme is affected by pH.
11. Base your answer to the following question on the
graph below and on your knowledge of biology. The
graph shows the relative rates of action of four
enzymes, A, B, C, and D.
(2) ADP
(4) ethyl alcohol
9. Which statement is true concerning enzymes?
(1) enzymes prolong chemical reactions
(2) enzymes have no special function and are
nonreusable
(3) enzymes are specialized proteins
(4) enzymes can be denatured by water
Which two enzymes would function in a region of the
human body having a neutral pH?
(1) A and B
(2) B and C
(3) C and D
(4) B and D
Page 2
Lesson 5
Base your answer to questions 12 and 13 on the graph
below which represents the rate of action of four
different enzymes at varying temperatures.
12. Which enzyme begins its action at the highest
temperature?
(1) A
(2) B
(3) C
(4) D
13. For which enzyme is the maximum rate of enzyme
action achieved at 10ºC?
(1) A
(2) B
(3) C
(4) D
14. In the reaction illustrated in the diagram below, which
structure represents the enzyme?
(1) A
(2) B
(3) C
(4) D
15. Base your answer to the following question on the diagram below that represents a human enzyme and four
types of molecules present in a solution in a flask.
Which molecule would most likely react with the enzyme? Why?
Page 3
Lesson 5
16. Which situation is not an example of the maintenance
of a dynamic equilibrium in an organism?
(1) Guard cells contribute to the regulation of water
content in a geranium plant.
(2) Water passes into an animal cell causing it to
swell.
(3) The release of insulin lowers the blood sugar
level in a human after eating a big meal.
(4) A runner perspires while running a race on a hot
summer day.
17. Which statement illustrates how human activities can
most directly change the dynamic equilibrium of an
ecosystem?
(1) A hurricane causes a stream to overflow its
banks.
(2) Increased wind increases water evaporation from
a plant.
(3) Water pollution causes a decrease in fish
populations in a river.
(4) The ozone shield helps prevent harmful radiation
from reaching the surface of Earth.
18. The hormone FSH stimulates the development of a
follicle in the human female. As the follicle develops,
it secretes estrogen. A high level of estrogen decreases
the secretion of FSH. This mechanism is an example
of
(1) cell differentiation (2) in vitro fertilization
(3) positive tropism
(4) negative feedback
19. The diagram below shows the interaction between blood sugar levels and pancreatic activity.
This process is an example of
(1) a feedback mechanism maintaining homeostasis
(2) an immune system responding to prevent disease
(3) the digestion of sugar by insulin
(4) the hormonal regulation of gamete production
Page 4
Lesson 5
20. An increase in the level of thyroxin in the blood
inhibits the release of thyroid-stimulating hormone.
This mechanism illustrates
(1) negative feedback
(2) enzymatic synthesis
(3) osmotic regulation
(4) enzyme specificity
21. The data in the graph below show evidence of disease in the human body.
A disruption in dynamic equilibrium is indicated by the temperature change between points
(1) A and B
(2) B and C
(3) C and D
(4) E and F
Page 5
Lesson 5