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(5) Cells And Heredity
Test Description: Lesson 5
Instructions: Answer all questions to get your test result.
1) Which of the following substances must animal cells take in from the environment to maintain homeostasis?
A
DNA
B
carbon dioxide
C
chlorophyll
D
oxygen
2) Which method of material exchange uses up energy?
A
diffusion
B
osmosis
C
passive transport
D
active transport
3) Which statement correctly tells why the cells of unicellular and multicellular organisms divide?
A
The cell of unicellular organisms divide to reproduce; those of MO divide to replace cells and grow.
B
The cell of both kinds of organisms divide to replace cells and to grow.
C
The cells of unicellular organisms divide to replace cells and to grow; those of multicellular organisms divide to reproduce.
D
The cells of both kinds of organisms divide to reproduce.
4) Plant cells use photosynthesis to make food. Plant cells also use cellular respiration to get energy from the food they make. How is cellular respiration different from photosynthesis?
A
Photosynthesis produces oxygen, and cellular respiration produces carbon dioxide.
B
Photosynthesis requires oxygen, and cellular respiration requires carbon dioxide.
C
Photosynthesis requires energy from food, and cellular respiration requires energy from the sun.
D
Photosynthesis produces ATP, and cellular respiration produces sugars.
5) Where does the exchange of materials in and out of a cell take place?
A
in the chromosome
B
in the nucleus
C
in the chloroplast
D
at the cell membrane
6) What is the result of homeostasis at the cellular level?
A
The environment within the cell is stable.
B
The cell dies.
C
The cell no longer obtains energy.
D
The cell divides.
7) Homeostasis is necessary for a cell to survive. What is the definition of homeostasis?
A
the elimination of wastes
B
the maintenance of a stable internal environment
C
the division of cells to form new cells
D
the process by which energy from the sun is used to make food
8) In one type of cell division, a single cell forms two new cells. This process is called mitosis. What is a reason that human skin cells frequently undergo mitosis?
A
to prevent bruises on the body
B
to get energy for the body
C
to replace dead or damaged skin cells
D
to replace dead or damaged muscle cells
9) Organisms can respond to changes in their environment in order to maintain a balance, called homeostasis. What does a tree do to maintain homeostasis during the winter months?
A
absorb sun
B
loses leaves
C
shivers
D
hibernates
10) Cells must be able to perform certain functions in order to survive. Which of the following must all cells do to survive?
A
obtain energy
B
utilize oxygen
C
continue growing
D
absorb wastes
11) Even when it is cold outside, the human body maintains an internal temperature of 37°C. Which term describe the maintenance of a stable internal condition?
A
endocytosis
B
photosynthesis
C
homeostasis
D
mitosis
12) The survival of a cell depends on the cell maintaining homeostasis. What is most likely to happen to a cell if homeostasis is not maintained?
A
Cell processes will continue unchanged.
B
The cell will eliminate waste more efficiently.
C
Many chemical reactions in the cell will slow down or even stop.
D
The cell will immediately divide.
13) What is mitosis?
A
the maintenance of a stable internal environment
B
the process by which cells use oxygen to produce energy from food.
C
the process in which a cell divides and form two identical nuclei
D
the process by which plants make their own food
14) Eukaryotic cells undergo mitosis as part of the cell cycle. What does a cell produce as a result of mitosis?
A
two cells that are larger than the original cell
B
two cells that no longer participate in the stages of the cell cycle
C
two cells with genetic material that is different from the original cell
D
two cells with identical genetic information
15) What are two distinct ways a organism can respond to changes in the environment?
A
through homeostasis and diffision
B
physically and through homeostasis
C
behaviorally and through migration
D
physically and behaviorally
16) Which of the following is an example of how homeostasis can cause an organism to change its behavior?
A
A tree loses it leaves in the winter.
B
A human shivers when exposed to weather.
C
Organisms do not change their behavior because of homeostasis.
D
A bear hibernates during the winter.
*select an answer for all questions
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