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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
carbon dioxide
B
DNA
C
oxygen
D
chlorophyll
2) Which method of material exchange uses up energy?
A
passive transport
B
active transport
C
diffusion
D
osmosis
3) Which statement correctly tells why the cells of unicellular and multicellular organisms divide?
A
The cells of unicellular organisms divide to replace cells and to grow; those of multicellular organisms divide to reproduce.
B
The cell of unicellular organisms divide to reproduce; those of MO divide to replace cells and grow.
C
The cells of both kinds of organisms divide to reproduce.
D
The cell of both kinds of organisms divide to replace cells and to grow.
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 ATP, and cellular respiration produces sugars.
B
Photosynthesis requires oxygen, and cellular respiration requires carbon dioxide.
C
Photosynthesis produces oxygen, and cellular respiration produces carbon dioxide.
D
Photosynthesis requires energy from food, and cellular respiration requires energy from the sun.
5) Where does the exchange of materials in and out of a cell take place?
A
in the chloroplast
B
at the cell membrane
C
in the chromosome
D
in the nucleus
6) What is the result of homeostasis at the cellular level?
A
The cell divides.
B
The cell dies.
C
The cell no longer obtains energy.
D
The environment within the cell is stable.
7) Homeostasis is necessary for a cell to survive. What is the definition of homeostasis?
A
the process by which energy from the sun is used to make food
B
the maintenance of a stable internal environment
C
the elimination of wastes
D
the division of cells to form new cells
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 get energy for the body
B
to replace dead or damaged muscle cells
C
to replace dead or damaged skin cells
D
to prevent bruises on the body
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
shivers
B
absorb sun
C
hibernates
D
loses leaves
10) Cells must be able to perform certain functions in order to survive. Which of the following must all cells do to survive?
A
utilize oxygen
B
continue growing
C
obtain energy
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
mitosis
B
endocytosis
C
homeostasis
D
photosynthesis
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
The cell will immediately divide.
B
Cell processes will continue unchanged.
C
Many chemical reactions in the cell will slow down or even stop.
D
The cell will eliminate waste more efficiently.
13) What is mitosis?
A
the process by which cells use oxygen to produce energy from food.
B
the maintenance of a stable internal environment
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 with identical genetic information
B
two cells that no longer participate in the stages of the cell cycle
C
two cells that are larger than the original cell
D
two cells with genetic material that is different from the original cell
15) What are two distinct ways a organism can respond to changes in the environment?
A
through homeostasis and diffision
B
behaviorally and through migration
C
physically and through homeostasis
D
physically and behaviorally
16) Which of the following is an example of how homeostasis can cause an organism to change its behavior?
A
Organisms do not change their behavior because of homeostasis.
B
A human shivers when exposed to weather.
C
A bear hibernates during the winter.
D
A tree loses it leaves in the winter.
*select an answer for all questions
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