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Review Cells/ Life Function
Test Description: Cell and LF
Instructions: Answer all questions to get your test result.
1) In a cell, protein synthesis is the primary function of
A
chloroplasts
B
vacuoles
C
mitochondria
D
ribosomes
2) IN a multicellular organism, organs carry out a variety of life functions. In a single-celled organism, these functions are performed by
A
organs
B
tissues
C
organ systems
D
organelles
3) in order for the human body to maintain homeostasis, the breakdown of glucose to release energy must be followed by the
A
division of the cell
B
production of oxygen
C
production of receptor molecules
D
removal of wastes
4) The enrgy used to obtain, transfer, and transport materials within an organism comes directly from
A
starch
B
ATP
C
sunlight
D
DNA
5) The failure of the human body to effectively maintain dynamic equilibrium
A
disease
B
gene manipulation
C
reproductive success
D
differentiation
6) Breathing rate is constantly being monitored and adjusted in the bhuman body, which results in
A
modification of gene activity in cells
B
the differentiation of mature body cells
C
the internal environemnt being kept within certain limits
D
feedback mechanisms removing damaged cells
7) which statement descdribes enzymes
A
the rate of activity of an enzyme might change as pH changes
B
enzymes are produced from the building blocks of carbohydrates
C
every enzyme controls many different reactions
D
temperature changes do not affect enzymes
8) which group consists of entirely organic molecules?
A
water, starch, protein
B
water, carbon dioxide, oxygen
C
protein , starch, fat
D
protein, oxygen, fat
9) During gas exchange, the cell membrane of a single-celled organism has the same function as which organ sysem in humans?
A
digestive
B
Nervous
C
respiratory
D
reprodutive
10) Whcih cell structure is mainly responsible for releasing energy from food molecules in some single-celled organisms?
A
ribosome
B
cell membrane
C
mitochondria
D
chloroplast
*select an answer for all questions
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