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