Photosynthesis Concepts and Processes

The video tutorial delves into the specifics of photosynthesis, focusing on chlorophyll's role in absorbing light energy and converting it into chemical energy. It explains the electron transport chain, highlighting the movement of electrons and the creation of a proton gradient that facilitates ATP synthesis. The tutorial also covers the Calvin cycle, emphasizing carbon fixation and the formation of glucose.

What is the primary role of chlorophyll in plants?

• To capture light energy

• To produce oxygen

• To absorb water

• To reflect sunlight

Why does chlorophyll appear green?

• It emits green light

• It reflects green light

• It converts green light to chemical energy

• It absorbs green light

Which photosystem comes first in the photosynthesis process?

• Neither is involved

• Both occur simultaneously

• Photosystem II

• Photosystem I

What is the role of NADP+ in the electron transport chain?

• It breaks down water

• It absorbs light

• It is reduced to NADPH

• It donates electrons

What is created as a result of redox reactions in the electron transport chain?

• Chlorophyll

• Glucose

• A concentration gradient

• Oxygen

What is the function of ATP synthase in photosynthesis?

• To break down ATP

• To transport electrons

• To synthesize ATP

• To absorb sunlight

How are protons involved in ATP synthesis?

• They are released as oxygen

• They create a concentration gradient

• They are absorbed by chlorophyll

• They are converted into electrons

What is the main product of the Calvin cycle?

• NADPH

• Glucose

• ATP

• Oxygen

What is carbon fixation?

• The release of carbon dioxide

• The conversion of carbon dioxide into organic compounds

• The breakdown of glucose

• The absorption of sunlight

What molecule is formed before glucose in the Calvin cycle?

• Oxygen

• ATP

• NADPH

• G3P