(5) Cells And Heredity Question Preview (ID: 16830)
Lesson 5.
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What are two distinct ways a organism can respond to changes in the environment?
a) physically and behaviorally
b) through homeostasis and diffision
c) physically and through homeostasis
d) behaviorally and through migration
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
What is mitosis?
a) the maintenance of a stable internal environment
b) the process by which plants make their own food
c) the process by which cells use oxygen to produce energy from food.
d) the process in which a cell divides and form two identical nuclei
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) photosynthesis
b) homeostasis
c) mitosis
d) endocytosis
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) Many chemical reactions in the cell will slow down or even stop.
b) The cell will immediately divide.
c) The cell will eliminate waste more efficiently.
d) Cell processes will continue unchanged.
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) absorb wastes
c) utilize oxygen
d) continue growing
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) loses leaves
b) absorb sun
c) shivers
d) hibernates
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 prevent bruises on the body
d) to replace dead or damaged skin cells
Homeostasis is necessary for a cell to survive. What is the definition of homeostasis?
a) the elimination of wastes
b) the division of cells to form new cells
c) the maintenance of a stable internal environment
d) the process by which energy from the sun is used to make food
What is the result of homeostasis at the cellular level?
a) The cell no longer obtains energy.
b) The environment within the cell is stable.
c) The cell dies.
d) The cell divides.
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
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 energy from food, and cellular respiration requires energy from the sun.
c) Photosynthesis produces ATP, and cellular respiration produces sugars.
d) Photosynthesis requires oxygen, and cellular respiration requires carbon dioxide.
Which statement correctly tells why the cells of unicellular and multicellular organisms divide?
a) The cells of both kinds of organisms divide to reproduce.
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 cell of unicellular organisms divide to reproduce; those of MO divide to replace cells and grow.
Which method of material exchange uses up energy?
a) osmosis
b) diffusion
c) active transport
d) passive transport
Which of the following substances must animal cells take in from the environment to maintain homeostasis?
a) chlorophyll
b) oxygen
c) carbon dioxide
d) DNA
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 tree loses it leaves in the winter.
c) A human shivers when exposed to weather.
d) A bear hibernates during the winter.
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