Photosynthesis Overview: Light & Dark Reactions

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What is the main goal of the light-independent reactions in photosynthesis?

To generate glucose from carbon dioxide (correct)

To produce oxygen

To convert light energy to chemical energy

To create ATP and FADH2

Which of the following describes the process of carbon fixation?

Incorporation of CO2 into organic compounds (correct)

Conversion of glucose to pyruvate

Decomposition of organic materials

Production of NADPH and ATP

What are the inputs required for the glycolysis process?

Glucose and pyruvate

ATP and NADH

Glucose and oxygen

Glucose and ATP (correct)

During the electron transport chain (ETC), what are the primary inputs?

NADH and FADH2 Signup and view all the answers

Which statement accurately describes NADPH’s role in photosynthesis?

It acts as a reducing agent in the Calvin Cycle Signup and view all the answers

What is the primary output of the light reactions of photosynthesis?

ATP and NADPH Signup and view all the answers

Which compound is initially fixed during the Calvin cycle?

RuBP Signup and view all the answers

Which molecule is produced during glycolysis?

Pyruvate Signup and view all the answers

What is the role of ATP Synthase in cellular respiration?

To convert ADP to ATP Signup and view all the answers

Which of the following correctly describes the transition from G3P to 1,3 Bisphosphoglycerate?

NAD+ is converted to NADPH Signup and view all the answers

In glycolysis, how many ATP molecules are produced for each molecule of glucose metabolized?

2 Signup and view all the answers

Which enzyme converts 1,3 Bisphosphoglycerate into 3 phosphoglycerate?

Phosphoglycerate kinase Signup and view all the answers

What is the initial reactant for glycolysis?

Glucose Signup and view all the answers

What is produced when ADP is converted into ATP during glycolysis?

Pyruvate Signup and view all the answers

Which enzyme is responsible for converting Fructo 6-phosphate into Fructo 1,6 Bisphosphate?

Phospho fructo Kinase 1 Signup and view all the answers

What occurs when Acetyl coa combines with Oxaloacetate in the Krebs cycle?

Citrate is formed Signup and view all the answers

Which process involves transforming Glyceraldehyde 3 phosphate into 1,3 Bisphosphoglycerate?

Glycolysis Signup and view all the answers

What is the primary role of NADH in cellular respiration?

Electron transport Signup and view all the answers

Which enzyme catalyzes the conversion of Citrate into Isocitrate?

Aconitase Signup and view all the answers

During glycolysis, which compound is formed after the splitting of Fructo 1,6 Bisphosphate?

DAHP and GA3P Signup and view all the answers

Which glucose transporter is primarily responsible for insulin-dependent glucose uptake?

GLUT 4 Signup and view all the answers

Study Notes

Photosynthesis

Photosynthesis is a chemical reaction that uses sunlight to convert carbon dioxide and water into glucose.
It's a process used by plants to produce glucose.
Divided into two phases: light-dependent and light-independent reactions.

Light Dependent Reaction

Also called the light reaction.
Captures light energy from sunlight using photosynthetic pigments.
Converts light energy into chemical energy in the form of ATP and NADPH.
Occurs in the thylakoid membrane of chloroplasts.
The process involves: photo-excitation, electron transport chain (ETC), photolysis, chemiosmosis, reduction, and the electron transport chain.
Input: sunlight, water
Output: ATP, NADPH

Light Independent Reaction

Also called the Calvin Cycle or dark reaction.
Uses ATP and NADPH from the light-dependent reactions to convert carbon dioxide into glucose.
Occurs in the stroma of chloroplasts.
The process involves carbon fixation, activation/reduction, and a process called regeneration.
Input: CO2, ATP, NADPH
Output: Glucose

Cellular Respiration

The process by which cells break down organic molecules like glucose to release energy in the form of ATP.
One part of the process is glycolysis, which breaks down glucose into two pyruvate molecules, producing some ATP in the process.
Another process is the Krebs cycle, where pyruvates produce more ATP, NADH, and FADH2.
The last stage is the electron transport chain, which uses the energy from NADH and FADH2 to generate a large amount of ATP.
Input: Glucose
Output: ATP

Glucose Transporters (GLUT)

Proteins that facilitate the transport of glucose across cell membranes.
Different types of GLUTs are responsible for glucose transport in various tissues and organs.

RuBisCo

RuBisCo (ribulose bisphosphate carboxylase/oxygenase), an enzyme that plays a crucial role in converting atmospheric carbon dioxide into sugars during photosynthesis.

Studying That Suits You

Use AI to generate personalized quizzes and flashcards to suit your learning preferences.

Description

This quiz delves into the intricate process of photosynthesis, focusing on both the light-dependent and light-independent reactions. Explore how plants convert sunlight into energy and produce glucose through these essential biochemical processes.