Photosynthesis Significance and Key Terms

Play an AI-generated podcast conversation about this lesson

What is the primary function of guard cells in plants?

To perform photosynthesis

To synthesize proteins

To regulate water transport

To control the opening of stomata (correct)

Where does the light-independent reaction of photosynthesis occur?

Stroma (correct)

Thylakoid membrane

Thylakoid space

Grana

What is the consequence of the redox process in photosynthesis?

Electrons are transferred from carbon dioxide to water

Hydrogen ions are transferred from water to carbon dioxide (correct)

Hydrogen ions are transferred from carbon dioxide to water

Electrons are transferred from water to carbon dioxide

What is the primary function of chlorophyll b?

To act as an accessory pigment Signup and view all the answers

What is the fate of the energy absorbed by photosynthetic pigments?

It has three possible fates: conversion to heat, resonance energy transfer, or electron transfer Signup and view all the answers

What is the function of NADP+ in cellular reactions?

To pick up energy in the form of two-energy electrons plus a proton Signup and view all the answers

What is the role of light energy in the synthesis of ATP and NADPH?

It excites an electron and starts the electron transport chain Signup and view all the answers

What is the purpose of the proton gradient in the thylakoid?

To drive ATP synthase to generate ATP Signup and view all the answers

What is the result of photolysis?

The formation of ½ O2 and 2H+ Signup and view all the answers

Which photosystem is involved in cyclic photophosphorylation?

Only PSI Signup and view all the answers

What is the role of the oxygen evolving complex?

To catalyze the splitting of two water molecules Signup and view all the answers

What is the difference between non-cyclic and cyclic photophosphorylation?

The production of NADPH Signup and view all the answers

What is the significance of photosynthesis mentioned in the text?

Producing food and fuel Signup and view all the answers

Which term refers to an organism that can produce its own food?

Autotroph Signup and view all the answers

What is the key biological process that harvests energy from the sun?

Photosynthesis Signup and view all the answers

What does the epidermis of a plant primarily prevent?

Loss of water through transpiration Signup and view all the answers

Which process is responsible for the existence of multicellular organisms?

Photosynthesis Signup and view all the answers

What is the main function of the splitting of water molecules (photolysis) in photosynthesis?

Production of oxygen Signup and view all the answers

What is the consequence of low carbon dioxide levels in photosynthesis?

RuBP accumulation Signup and view all the answers

How does bright light affect photosynthesis?

Increases the production of ATP, NADPH, and O2 Signup and view all the answers

What is the consequence of the prevention of photorespiration in plants?

Improved CO2 uptake Signup and view all the answers

How does temperature affect enzyme-controlled reactions in photosynthesis?

Increases enzyme activity Signup and view all the answers

What happens to GP and TP production under dim light conditions in photosynthesis?

GP increases but does not convert to TP Signup and view all the answers