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Unit 3: Cell Processes
Test Description: Cell processes
Instructions: Answer all questions to get your test result.
1) The movement of air freshener throughout a room is an example of _____
A
diffusion
B
condensation
C
evaporation
D
active transport
2) Active transport occurs when _____ is used to move substances through a membrane.
A
diffusion
B
osmosis
C
chlorophyll
D
energy
3) Under what conditions will a substance be likely to enter a cell through diffusion?
A
when the concentration of the substance is greater outside the cell than inside the cell
B
when a molecule of the substance is very large
C
when the concentration of the substance is greater inside the cell then outside the cell
D
when the substance is a particle of food
4) When water moves across the cell membrane, the process is called_____
A
respiration
B
pollution
C
osmosis
D
transfusion
5) In which part of the plant cell does photosynthesis occur?
A
chloroplasts
B
golgi bodies
C
nucleus
D
mitochondria
6) Diffusion, osmosis, and active transport are all _____.
A
processes that speed up chemical reactions in a cell
B
ways that cells convert food to energy
C
means by which cells reproduce
D
methods by which substances move into and out of a cell
7) The green pigment in cells that helps plants make food is called?
A
chlorophyll
B
golgi bodies
C
vacuoles
D
mitrochondria
8) What is the result of cellular respiration?
A
energy for cell processes is released
B
nutrients are excreted to prevent the buildup of body fat
C
oxygen is released for photosynthesis
D
cells undergo decomposition
9) which of the following groups of organisms uses sunlight to convert carbon dioxide and water into sugar and oxygen?
A
producers
B
herbivores
C
carnivores
D
decomposers
10) Amoebas obtain food by wrapping the cell membrane around the food particles, creating a vesicle. The food is then brought into the cell. This process is known as_____
A
osmosis
B
photosynthesis
C
endocytosis
D
excytosis
11) Two types of passive transport include _____
A
diffusion and osmosis
B
osmosis and endocytosis
C
excytosis and endocytosis
D
diffusion and exocytosis
12) Which of the following life processes produces carbon dioxide as a waste product that is eventually returned to the atmosphere?
A
photosynthesis
B
dentrification
C
nitrogen fixation
D
cellular respiration
13) Which of these processes of organisms needs carbon dioxide from the atmosphere?
A
digestion
B
cellular respiration
C
photosynthesis
D
dentrification
14) What is one main difference between respiration and photosynthesis
A
photosynthesis produces energy and respiration releases energy
B
photosynthesis takes place in plant cells only, and respiration takes place in animal cells only
C
photosynthesis uses organic chemicals to make energy and respiration does not
D
photosynthesis makes energy and respiration destroys energy
15) What is the primary difference beween diffusion and osmosis?
A
Diffusion is the movement of any substance from high to low concentration, while osmosis is water from high to low
B
Diffusion requires energy input but osmosis does not
C
Diffusion does not require energy
D
Diffusion is the movement of water from high to low concentration, while osmosis is the movement of any substance high to low
16) The process by which all living things ensures their species continues to exist as time passes is called _____
A
respiration
B
budding
C
germination
D
reproduction
17) In sexual reproduction, the union of an egg and sperm is called _____
A
fertilization
B
metamorphosis
C
meiosis
D
mitosis
18) A function of mitosis is to _____
A
produce egg and sperm
B
reduce the number of chromosomes
C
produce body cells
D
reduce the number of body cells
19) Which occurs in the last stage of mitosis?
A
The chromosomes begin to uncoil
B
a mesh-like spindle develops between two centrioles
C
the cell membrane divides the cytoplasm into two equal parts
D
The centromere splits
20) Each body cell of a goldfish contains 94 chromosomes. How many chromosomes are contained in goldfish sex cells?
A
188
B
23
C
94
D
47
*select an answer for all questions
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