2.2.1 Photosynthesis

Question 1

What is photosynthesis?

Answer 1

A chemical process by which plants create carbohydrates using light energy.

Photosynthesis is crucial for energy conversion in ecosystems.

Question 2

What are the four importance of photosynthesis?

Answer 2

• Energy Conversion
• Oxygen
• Carbon Dioxide and oxygen levels
• Fossil Fuels

These points highlight the ecological roles of photosynthesis.

Question 3

Define autotrophs.

Answer 3

Organisms that produce their own food for energy using photosynthesis or chemosynthesis.

Examples include plants, some bacteria, and algae.

Question 4

Define heterotrophs.

Answer 4

Organisms that eat other organisms to get protein and energy.

Examples include animals, most bacteria, and fungi.

Question 5

Where does photosynthesis primarily take place?

Answer 5

In the leaves of plants in the chloroplasts.

The leaves are specialized structures for capturing light energy.

Question 6

What are chloroplasts?

Answer 6

Organelles that contain chlorophyll, the green pigment that captures light energy from the sun.

Chloroplasts are most abundant in mesophyll cells.

Question 7

Fill in the blank: The green pigment that captures light energy is called _______.

Answer 7

chlorophyll.

Chlorophyll is essential for the process of photosynthesis.

Question 8

True or False: Autotrophs include animals.

Answer 8

False.

Animals are classified as heterotrophs, not autotrophs.

Question 9

List three types of organisms that are autotrophs.

Answer 9

• Plants
• Some Bacteria
• Algae

These organisms can synthesize their own food.

Question 10

List three types of organisms that are heterotrophs.

Answer 10

• Animals
• Most Bacteria
• Fungi

These organisms rely on consuming other organisms for energy.