Biology 100- boise state- exam 1 UPDATED
ACTUAL Exam Questions and CORRECT
Answers
The secondary structure of a protein results from _____. - CORRECT ANSWER -
hydrogen bonds
The energy stored in ATP (adenosine triphosphate) can drive cellular work by energizing other
molecules. This process occurs when - CORRECT ANSWER - 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 ANSWER - There is no difference.
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 ANSWER - Pickles in a hypertonic
solution losing water through osmosis
hypertonic - CORRECT ANSWER - Having a higher concentration of solute than another
solution.
hypotonic - CORRECT ANSWER - Having a lower concentration of solute than another
solution
How do enzyme inhibitors work? - CORRECT ANSWER - 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 ANSWER - hydrophobic; hydrophilic
what type of passive diffusion is involved in ion transport across cell membranes? - CORRECT
ANSWER - facilitated diffusion
A Calorie displayed on the nutrition label of a candy bar is equal to _____ - CORRECT
ANSWER - 1000 calories.
The region on an enzyme where a substrate binds is called the _____ - CORRECT
ANSWER - active site
Which of the following is a true statement about ATP and cellular work? - CORRECT
ANSWER - ATP is composed of adenosine and three phosphate groups.
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 ANSWER - 1, 2, 3, 4
Which of the following best describes the process of facilitated diffusion? - CORRECT
ANSWER - passive movements of solutes down a concentration gradient, with the
involvement of membrane proteins.
How are combustion and cellular respiration similar? - CORRECT ANSWER - They both
produce carbon dioxide and water at the end of both chemical reactions.
ACTUAL Exam Questions and CORRECT
Answers
The secondary structure of a protein results from _____. - CORRECT ANSWER -
hydrogen bonds
The energy stored in ATP (adenosine triphosphate) can drive cellular work by energizing other
molecules. This process occurs when - CORRECT ANSWER - 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 ANSWER - There is no difference.
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 ANSWER - Pickles in a hypertonic
solution losing water through osmosis
hypertonic - CORRECT ANSWER - Having a higher concentration of solute than another
solution.
hypotonic - CORRECT ANSWER - Having a lower concentration of solute than another
solution
How do enzyme inhibitors work? - CORRECT ANSWER - 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 ANSWER - hydrophobic; hydrophilic
what type of passive diffusion is involved in ion transport across cell membranes? - CORRECT
ANSWER - facilitated diffusion
A Calorie displayed on the nutrition label of a candy bar is equal to _____ - CORRECT
ANSWER - 1000 calories.
The region on an enzyme where a substrate binds is called the _____ - CORRECT
ANSWER - active site
Which of the following is a true statement about ATP and cellular work? - CORRECT
ANSWER - ATP is composed of adenosine and three phosphate groups.
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 ANSWER - 1, 2, 3, 4
Which of the following best describes the process of facilitated diffusion? - CORRECT
ANSWER - passive movements of solutes down a concentration gradient, with the
involvement of membrane proteins.
How are combustion and cellular respiration similar? - CORRECT ANSWER - They both
produce carbon dioxide and water at the end of both chemical reactions.
