BSC 108 Exam 2 Exam latESt 2026 aCtUal QUEStionS and
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The process of photosynthesis captures ____ and converts it to ____. -
ANSWER-Light energy from the sun
Chemical energy stored in sugars and other organic molecules
How does carbon dioxide enter plants? - ANSWER-Through pores in the leaf
called stomata
TRUE OR FALSE: Photosynthesis occurs in chloroplasts - ANSWER-TRUE
What is the structure of a chloroplast? - ANSWER-Stroma
Thylakoid membrane
Grana
Inner membrane
Outer membrane
What is embedded in the inner thylakoid membrane? - ANSWER-Chlorophyll
molecules
What is the primary function of plant pigments? - ANSWER-To absorb solar
energy
,Why are leaves green? - ANSWER-Chlorophyll molecules absorb violent-blue
and red light
They reflect or transmit green-yellow light
What are the processes of light dependent reactions? - ANSWER-Chlorophyll
absorbs solar energy and ejects an electron
This is passed down an electron transport chain
Water is split, releasing O2
What are the requirements for light dependent reactions? - ANSWER-H2O
ADP
NADP+
What are the products of light reactions? - ANSWER-O2
Energy-storing compounds ATP and NADH
What are the requirements for the Calvin cycle reactions? - ANSWER-ATP
NADPH
CO2
Five-carbon sugar called RuBP
Enzyme Rubisco
TRUE OR FALSE: Carbon dioxide is fixed during the Calvin cycle - ANSWER-
TRUE
What is the product of the Calvin cycle? What can this be used to make? -
ANSWER-Glyceraldehyde-3-phosphate (G3P)
, Glucose
What is C4 photosynthesis an adaptation for? - ANSWER-Hot and dry
weather
What are two examples of a C4 plant? - ANSWER-Sugar cane
Corn
What is photosynthesis? - ANSWER-The process that stores energy in the
form of glucose
What is cellular respiration? - ANSWER-The process that releases energy
from glucose
An oxidation reaction involves the ___ of electrons while a reduction reaction
involves the ___ of electrons - ANSWER-Loss
Gain
During cellular respiration, glucose from food is converted to ____, releasing
energy that is used to produce ____. - ANSWER-CO2
ATP
What is the general equation for photosynthesis? - ANSWER-water + carbon
dioxide + light energy --> glucose + oxygen
OR
6H2O + 6CO2 + light energy --> C6H12O6 + 6O2
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The process of photosynthesis captures ____ and converts it to ____. -
ANSWER-Light energy from the sun
Chemical energy stored in sugars and other organic molecules
How does carbon dioxide enter plants? - ANSWER-Through pores in the leaf
called stomata
TRUE OR FALSE: Photosynthesis occurs in chloroplasts - ANSWER-TRUE
What is the structure of a chloroplast? - ANSWER-Stroma
Thylakoid membrane
Grana
Inner membrane
Outer membrane
What is embedded in the inner thylakoid membrane? - ANSWER-Chlorophyll
molecules
What is the primary function of plant pigments? - ANSWER-To absorb solar
energy
,Why are leaves green? - ANSWER-Chlorophyll molecules absorb violent-blue
and red light
They reflect or transmit green-yellow light
What are the processes of light dependent reactions? - ANSWER-Chlorophyll
absorbs solar energy and ejects an electron
This is passed down an electron transport chain
Water is split, releasing O2
What are the requirements for light dependent reactions? - ANSWER-H2O
ADP
NADP+
What are the products of light reactions? - ANSWER-O2
Energy-storing compounds ATP and NADH
What are the requirements for the Calvin cycle reactions? - ANSWER-ATP
NADPH
CO2
Five-carbon sugar called RuBP
Enzyme Rubisco
TRUE OR FALSE: Carbon dioxide is fixed during the Calvin cycle - ANSWER-
TRUE
What is the product of the Calvin cycle? What can this be used to make? -
ANSWER-Glyceraldehyde-3-phosphate (G3P)
, Glucose
What is C4 photosynthesis an adaptation for? - ANSWER-Hot and dry
weather
What are two examples of a C4 plant? - ANSWER-Sugar cane
Corn
What is photosynthesis? - ANSWER-The process that stores energy in the
form of glucose
What is cellular respiration? - ANSWER-The process that releases energy
from glucose
An oxidation reaction involves the ___ of electrons while a reduction reaction
involves the ___ of electrons - ANSWER-Loss
Gain
During cellular respiration, glucose from food is converted to ____, releasing
energy that is used to produce ____. - ANSWER-CO2
ATP
What is the general equation for photosynthesis? - ANSWER-water + carbon
dioxide + light energy --> glucose + oxygen
OR
6H2O + 6CO2 + light energy --> C6H12O6 + 6O2
