BIOLOGY 100- BOISE STATE- EXAM 1
QUESTIONS AND ANSWERS
The secondary structure of a protein results from _____. - Correct Answers -hydrogen
bonds
The energy stored in ATP (adenosine triphosphate) can drive cellular work by
energizing other molecules. This process occurs when - Correct Answers -A phosphate
group is transferred from ATP from another molecule.
In reference to movement of molecules across a membrane, what is the difference
between diffusion and passive transport? - Correct Answers -There is no difference.
what type of passive diffusion is involved in ion transport across cell membranes? -
Correct Answers -facilitated diffusion
A Calorie displayed on the nutrition label of a candy bar is equal to _____ - Correct
Answers -1000 calories.
The region on an enzyme where a substrate binds is called the _____ - Correct
Answers -active site
Which of the following is a true statement about ATP and cellular work? - Correct
Answers -ATP is composed of adenosine and three phosphate groups.
You decide to try your hand at canning pickles. You immerse freshly picked cucumbers
in a solution that has a solute concentration twice that found in the cucumber cells. You
allow your preparation to cure for several months in a sealed jar. When you later open
the jar, you find that the fluid surrounding the pickles is more dilute than when you
started.
This change in concentration is due to - Correct Answers -Pickles in a hypertonic
solution losing water through osmosis
hypertonic - Correct Answers -Having a higher concentration of solute than another
solution.
hypotonic - Correct Answers -Having a lower concentration of solute than another
solution
, How do enzyme inhibitors work? - Correct Answers -They bind to an enzyme, which
alters the active site so a substrate cannot bind
______ molecules generally can pass directly through the plasma membrane more
readily than _____ molecules. - Correct Answers -hydrophobic; hydrophilic
Put the following steps of ATP phosphate transfer in the correct order:
1. ATP transfers a phosphate group to a protein
2. ATP energizes a molecule in a cell
3. A protein changes shape
4. ATP enables transport of ions across cell membrane - Correct Answers -1, 2, 3, 4
Which of the following best describes the process of facilitated diffusion? - Correct
Answers -passive movements of solutes down a concentration gradient, with the
involvement of membrane proteins.
How are combustion and cellular respiration similar? - Correct Answers -They both
produce carbon dioxide and water at the end of both chemical reactions.
Why are enzymes so critical to cell functioning? - Correct Answers -Enzymes enable
and regulate cellular reactions.
Cellular respiration involves the breakdown of food molecules to produce ATP. What
other molecule(s) is/are produced by cellular respiration? - Correct Answers -carbon
dioxide and water
The induced fit model of enzyme catalysis states that __________. - Correct Answers -
the active site of an enzyme changes shape after a substrate binds to it.
Which of the following conditions represent(s) stored (potential) energy:
(1) table sugar ready to be ingested,
(2) a diver about to dive off the ten-meter platform at the Olympics, or
(3) a gerbil running on its exercise wheel in its cage? - Correct Answers -1 and 2
For what purpose(s) might a cell transport materials across its plasma membrane? -
Correct Answers -import nutrients, get rid of waste, and secrete protiens.
Which part of a reaction is changed by an enzyme? - Correct Answers -activation
energy
Genetics plays a role in how fast different people can "burn" their food. The rate of food
energy consumption by your body is called metabolic rate. How could genetics account
QUESTIONS AND ANSWERS
The secondary structure of a protein results from _____. - Correct Answers -hydrogen
bonds
The energy stored in ATP (adenosine triphosphate) can drive cellular work by
energizing other molecules. This process occurs when - Correct Answers -A phosphate
group is transferred from ATP from another molecule.
In reference to movement of molecules across a membrane, what is the difference
between diffusion and passive transport? - Correct Answers -There is no difference.
what type of passive diffusion is involved in ion transport across cell membranes? -
Correct Answers -facilitated diffusion
A Calorie displayed on the nutrition label of a candy bar is equal to _____ - Correct
Answers -1000 calories.
The region on an enzyme where a substrate binds is called the _____ - Correct
Answers -active site
Which of the following is a true statement about ATP and cellular work? - Correct
Answers -ATP is composed of adenosine and three phosphate groups.
You decide to try your hand at canning pickles. You immerse freshly picked cucumbers
in a solution that has a solute concentration twice that found in the cucumber cells. You
allow your preparation to cure for several months in a sealed jar. When you later open
the jar, you find that the fluid surrounding the pickles is more dilute than when you
started.
This change in concentration is due to - Correct Answers -Pickles in a hypertonic
solution losing water through osmosis
hypertonic - Correct Answers -Having a higher concentration of solute than another
solution.
hypotonic - Correct Answers -Having a lower concentration of solute than another
solution
, How do enzyme inhibitors work? - Correct Answers -They bind to an enzyme, which
alters the active site so a substrate cannot bind
______ molecules generally can pass directly through the plasma membrane more
readily than _____ molecules. - Correct Answers -hydrophobic; hydrophilic
Put the following steps of ATP phosphate transfer in the correct order:
1. ATP transfers a phosphate group to a protein
2. ATP energizes a molecule in a cell
3. A protein changes shape
4. ATP enables transport of ions across cell membrane - Correct Answers -1, 2, 3, 4
Which of the following best describes the process of facilitated diffusion? - Correct
Answers -passive movements of solutes down a concentration gradient, with the
involvement of membrane proteins.
How are combustion and cellular respiration similar? - Correct Answers -They both
produce carbon dioxide and water at the end of both chemical reactions.
Why are enzymes so critical to cell functioning? - Correct Answers -Enzymes enable
and regulate cellular reactions.
Cellular respiration involves the breakdown of food molecules to produce ATP. What
other molecule(s) is/are produced by cellular respiration? - Correct Answers -carbon
dioxide and water
The induced fit model of enzyme catalysis states that __________. - Correct Answers -
the active site of an enzyme changes shape after a substrate binds to it.
Which of the following conditions represent(s) stored (potential) energy:
(1) table sugar ready to be ingested,
(2) a diver about to dive off the ten-meter platform at the Olympics, or
(3) a gerbil running on its exercise wheel in its cage? - Correct Answers -1 and 2
For what purpose(s) might a cell transport materials across its plasma membrane? -
Correct Answers -import nutrients, get rid of waste, and secrete protiens.
Which part of a reaction is changed by an enzyme? - Correct Answers -activation
energy
Genetics plays a role in how fast different people can "burn" their food. The rate of food
energy consumption by your body is called metabolic rate. How could genetics account
