BSC 1010 Chapter Notes - Chapter 4: Exergonic Reaction, Cellular Respiration, Competitive Inhibition

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Published on 3 Jul 2019
School
FIU
Department
Biological Science
Course
BSC 1010
Professor
BSC 1010
Chapter Four
Review Questions
1.
4. A ripe peach hanging from a tree
branch
A) has kinetic energy.
B) has potential energy.
C) has kinetic and potential energy.
D) has heat energy.
E) has entropy.
B) has potential energy.
2.
Active transport is different from simple
diffusion in that active transport
moves molecules against a concentration
gradient, requires energy, requires proteins
embedded within the cell membrane, and
moves molecules from an area of lower
concentration to an area of higher
concentration.
3.
ATP releases energy when ________.
a last one phosphate is removed
4.
The breakdown of the glucose to carbon
dioxide and water is a(n)
exergonic reaction in cellular respiration.
5.
Competitive inhibition of the enzyme
occurs when
a substance other than the substrate binds at
the active site of an enzyme.
6.
Coupled reactions are reactions in
which a(n)
exergonic reaction drives an endergonic
reaction.
7.
The diffusion of water across a
selectively permeable (biological)
membrane is
osmosis.
8.
Entropy is a measure of ________ in
nature
kinetic energy.
9.
An enzyme is
an organic molecule that accelerates cellular
reactions.
10.
Enzymes speed up chemical reactions by
lowering the energy required to start a
chemical reaction.
11.
If blood cells are placed in a hypertonic
solution, the cells will
shrink due to water loss by the cell.
12.
In a hypertonic solution the plant cell
becomes ________.
plasmolyzed
13.
The induced fit model of enzyme activity
says that
the enzyme's active site changes in shape to
allow for substrate binding.
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