Photosynthesis Quiz

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Questions and Answers

Which of the following statements accurately describes autotrophs?

Autotrophs obtain their energy from the sun. (correct)

Autotrophs obtain their energy from the air.

Autotrophs obtain their energy from inorganic sources.

Autotrophs obtain their energy from other organisms.

Where is chlorophyll located in autotrophs?

In the nucleus

In the cell membrane

In the chloroplasts (correct)

In the mitochondria

Which of the following accurately describes autotrophs?

Autotrophs obtain their energy from inorganic sources

Autotrophs obtain their energy from consuming other organisms

Autotrophs obtain their energy from organic matter

Autotrophs obtain their energy from the sun (correct)

What is the main function of chlorophyll?

To convert sunlight into chemical energy Signup and view all the answers

Which colors do chlorophyll a and b reflect?

Green and yellow Signup and view all the answers

What is the end product of photosynthesis?

Glucose and oxygen Signup and view all the answers

Where does the Calvin cycle take place?

In the cytoplasm Signup and view all the answers

Which of the following accurately describes autotrophs?

Autotrophs obtain their energy from the sun. Signup and view all the answers

What is the function of chlorophyll?

Chlorophyll absorbs sunlight and converts it into chemical energy. Signup and view all the answers

What is photosynthesis?

The process by which autotrophs convert sunlight into chemical energy. Signup and view all the answers

What is a light-dependent reaction?

A reaction that requires sunlight to occur. Signup and view all the answers

Which of the following accurately describes autotrophs?

Autotrophs obtain their energy from inorganic molecules Signup and view all the answers

What is chlorophyll?

A pigment that absorbs light energy Signup and view all the answers

Where is chlorophyll located?

In the chloroplasts Signup and view all the answers

What is the function of chlorophyll?

To convert light energy into chemical energy Signup and view all the answers

Which colors do chlorophyll a and b reflect?

Red and orange Signup and view all the answers

What are the 3 stages of the Calvin cycle?

fixation, reduction, regeneration Signup and view all the answers

Study Notes

Autotrophs

Organisms that can produce their own food through photosynthesis or chemosynthesis.
Examples include plants, algae, and some bacteria.
Utilize sunlight or chemical energy to convert carbon dioxide and water into glucose.

Chlorophyll

A green pigment located in the chloroplasts of autotrophs.
Primarily involved in capturing light energy for photosynthesis.
Functions by absorbing light, mainly in the blue and red wavelengths.

Photosynthesis

The process by which autotrophs convert light energy into chemical energy, stored as glucose.
Occurs in two main stages: light-dependent reactions and the Calvin cycle.

Light-Dependent Reactions

These occur in the thylakoid membranes of chloroplasts.
Require light to energize electrons, resulting in the production of ATP and NADPH.
Oxygen is released as a byproduct from water splitting.

Calvin Cycle

Takes place in the stroma of chloroplasts.
Utilizes ATP and NADPH produced in light-dependent reactions to convert carbon dioxide into glucose.
Involves three main stages: carbon fixation, reduction phase, and regeneration of ribulose bisphosphate (RuBP).

Chlorophyll Reflection

Chlorophyll a reflects green light and absorbs mainly blue and red light.
Chlorophyll b reflects light primarily in the blue and orange-red ranges and supports chlorophyll a by capturing light energy.

End Product of Photosynthesis

The primary end product is glucose, which serves as an energy source for the plant and other organisms that consume it.

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Description

Test your knowledge on autotrophs, heterotrophs, and the process of photosynthesis with this quiz. Learn about where these organisms obtain their energy, the role of chlorophyll, and the products produced during photosynthesis. Discover the functions of chlorophyll and the colors it reflects. Explore the concept of visible light and the process of a light-dependent reaction.