BSC 108 Exam 2 Complete Study
Questions with 100% Correct
Answers Already Graded A+
1. What do all living organisms need to sustain life? - ANSWER Oxygen and
energy
2. What is energy? - ANSWER The ability to do work
3. What are the different types of energy? - ANSWER Kinetic- energy of
motion (heat)
Potential- stored energy (chemical energy)
4. What is a calorie? - ANSWER amount of energy that raises the temp. of one
gram of water by one degree celsius
5. What is an autotroph? - ANSWER organisms that make their own organic
matter. Plants
6. What is a heterotroph? - ANSWER organisms that cannot make organic
molecules from inorganic ones. Humans
7. What is cellular respiration? - ANSWER requires a cell to exchange gases
with its surroundings
,8. What is breathing? - ANSWER exchanges these gases between the blood
and the outside air
9. What is the relationship between photosynthesis and cellular respiration? -
ANSWER The reactants of photosynthesis are the products of cellular
respiration and the opposite
10.What is the equation for photosynthesis? - ANSWER 6CO2 + 6H2O ->
C6H12O6 + 6O2
11.What is the equation for cellular respiration? - ANSWER C6H12O6 + 6O2
---> 6CO2 + 6H2O + energy
12.Where does photosynthesis occur? - ANSWER Chloroplast
13.Where does cellular respiration occur? - ANSWER cytosol and
mitochondria
14.What is the electron transport chain used for? - ANSWER -functions as a
chemical machine that uses energy released by the "fall" of electrons to
pump hydrogen ions across the inner mitochondrial membrane.
15.-releases the energy your cells need to make the most of their ATP
16.What are the steps of photosynthesis? - ANSWER Light reactions and the
Calvin Cycle
17.Steps of light reactions - ANSWER converting solar energy to chemical
energy
,18.Steps of the Calvin Cycle - ANSWER makes sugar from carbon dioxide
19.Why are plants green? - ANSWER the green pigment is reflected because a
lot of chlorophyll is produced
20.Why do leave turn colors in the fall? - ANSWER less chlorophyll is
produced because there is less sunlight, causing the leaves to change
21.What is a calorie? (different than the one before) - ANSWER very small
unit of energy
22.What is the conservation of energy principle - ANSWER energy cannot be
created or destroyed
23.What is entropy? - ANSWER Energy cannot be created or destroyed
24.What is activation energy? - ANSWER energy that activates the reactants in
a chemical reaction
25.What is an enzyme? - ANSWER lowers the activation energy for chemical
reactions.
26.How does an enzyme work? - ANSWER Catalyzes for specific reactions
and each recognizes a specific substrate. Active site fits to the substrate, and
the enzyme changes shape slightly. Called induced fit. Enzymes can
function over and over again
27.What factors affect how well enzymes work? - ANSWER Temperature, pH,
etc
, 28.How does an enzyme inhibitor work - ANSWER -bind to the active site as a
substrate imposter
-bind a remote site, changing the enzyme shape
29.What is a receptor? - ANSWER receives chemical signals originating
externally from the cell
30.What is ATP and what is it used for? - ANSWER ATP is the energy
currency in all cells. It is Adenosine Triphosphate
31.How do you get energy from ATP? - ANSWER ATP is recycled from ADP
and phosphate through cellular respiration. ATP functions in what is called
energy coupling or ATP cycle
32.What is hypertonic solution? - ANSWER Has a higher concentration of
solute
33.What is hypotonic solution? - ANSWER Has a lower concentration of
solute
34.What is isotonic solution? - ANSWER Has an equal concentration of solute
35.What is a producer? - ANSWER plants and other autotrophs. Produce
energy
36.What is a consumer? - ANSWER animals and heterotrophs. Obtain food by
eating other organisms
Questions with 100% Correct
Answers Already Graded A+
1. What do all living organisms need to sustain life? - ANSWER Oxygen and
energy
2. What is energy? - ANSWER The ability to do work
3. What are the different types of energy? - ANSWER Kinetic- energy of
motion (heat)
Potential- stored energy (chemical energy)
4. What is a calorie? - ANSWER amount of energy that raises the temp. of one
gram of water by one degree celsius
5. What is an autotroph? - ANSWER organisms that make their own organic
matter. Plants
6. What is a heterotroph? - ANSWER organisms that cannot make organic
molecules from inorganic ones. Humans
7. What is cellular respiration? - ANSWER requires a cell to exchange gases
with its surroundings
,8. What is breathing? - ANSWER exchanges these gases between the blood
and the outside air
9. What is the relationship between photosynthesis and cellular respiration? -
ANSWER The reactants of photosynthesis are the products of cellular
respiration and the opposite
10.What is the equation for photosynthesis? - ANSWER 6CO2 + 6H2O ->
C6H12O6 + 6O2
11.What is the equation for cellular respiration? - ANSWER C6H12O6 + 6O2
---> 6CO2 + 6H2O + energy
12.Where does photosynthesis occur? - ANSWER Chloroplast
13.Where does cellular respiration occur? - ANSWER cytosol and
mitochondria
14.What is the electron transport chain used for? - ANSWER -functions as a
chemical machine that uses energy released by the "fall" of electrons to
pump hydrogen ions across the inner mitochondrial membrane.
15.-releases the energy your cells need to make the most of their ATP
16.What are the steps of photosynthesis? - ANSWER Light reactions and the
Calvin Cycle
17.Steps of light reactions - ANSWER converting solar energy to chemical
energy
,18.Steps of the Calvin Cycle - ANSWER makes sugar from carbon dioxide
19.Why are plants green? - ANSWER the green pigment is reflected because a
lot of chlorophyll is produced
20.Why do leave turn colors in the fall? - ANSWER less chlorophyll is
produced because there is less sunlight, causing the leaves to change
21.What is a calorie? (different than the one before) - ANSWER very small
unit of energy
22.What is the conservation of energy principle - ANSWER energy cannot be
created or destroyed
23.What is entropy? - ANSWER Energy cannot be created or destroyed
24.What is activation energy? - ANSWER energy that activates the reactants in
a chemical reaction
25.What is an enzyme? - ANSWER lowers the activation energy for chemical
reactions.
26.How does an enzyme work? - ANSWER Catalyzes for specific reactions
and each recognizes a specific substrate. Active site fits to the substrate, and
the enzyme changes shape slightly. Called induced fit. Enzymes can
function over and over again
27.What factors affect how well enzymes work? - ANSWER Temperature, pH,
etc
, 28.How does an enzyme inhibitor work - ANSWER -bind to the active site as a
substrate imposter
-bind a remote site, changing the enzyme shape
29.What is a receptor? - ANSWER receives chemical signals originating
externally from the cell
30.What is ATP and what is it used for? - ANSWER ATP is the energy
currency in all cells. It is Adenosine Triphosphate
31.How do you get energy from ATP? - ANSWER ATP is recycled from ADP
and phosphate through cellular respiration. ATP functions in what is called
energy coupling or ATP cycle
32.What is hypertonic solution? - ANSWER Has a higher concentration of
solute
33.What is hypotonic solution? - ANSWER Has a lower concentration of
solute
34.What is isotonic solution? - ANSWER Has an equal concentration of solute
35.What is a producer? - ANSWER plants and other autotrophs. Produce
energy
36.What is a consumer? - ANSWER animals and heterotrophs. Obtain food by
eating other organisms
