Photosynthesis - Energy in a Cell

The video tutorial covers the process of photosynthesis, explaining how light energy is converted into chemical energy stored as carbohydrates. It details the two phases: light-dependent reactions, which occur in the chloroplasts and involve chlorophyll, and the Calvin cycle, which does not require light. The tutorial also explains how pigments like chlorophyll affect color perception, and it concludes with a summary of the photosynthesis equation.

What is the primary source of energy for photosynthesis?

• Water

• Chemical Reactions

• The Sun

• The Moon

Where in the plant cell does photosynthesis primarily occur?

• Chloroplast

• Mitochondria

• Cell Wall

• Nucleus

Why do we perceive leaves as green?

• They reflect green light

• They absorb green light

• They emit green light

• They are transparent to green light

What happens to chlorophyll in the fall, causing leaves to change color?

• It is absorbed into the tree

• It is produced more

• It becomes transparent

• It changes to a different pigment

What is the role of the electron transport chain in the light-dependent reactions?

• To produce glucose

• To absorb sunlight

• To reflect light

• To transport electrons and produce ATP

What molecule is produced as a result of the light-dependent reactions and used in the Calvin cycle?

• NADPH

• Glucose

• Carbon Dioxide

• Oxygen

What is the main product of the Calvin cycle?

• Oxygen

• Glucose

• ATP

• Chlorophyll

Which of the following is NOT required for the Calvin cycle?

• NADPH

• Carbon Dioxide

• ATP

• Sunlight

What is the general equation for photosynthesis?

• 6O2 + C6H12O6 = 6CO2 + 6H2O

• 6CO2 + 6H2O = C6H12O6 + 6O2

• C6H12O6 + 6O2 = 6CO2 + 6H2O

• 6H2O + 6O2 = C6H12O6 + 6CO2

What are the two vital substances produced by photosynthesis?

• Carbon Dioxide and Water

• Glucose and Oxygen

• Chlorophyll and Sunlight

• ATP and NADPH