Photosynthesis Flashcards
What is photosynthesis?
A process that occurs in the leaves of a plant, converting carbon dioxide and water into glucose and oxygen using chlorophyll and light energy.
What are the main components needed for photosynthesis?
- Carbon dioxide
- Water
- Light (a source of energy)
What are the products of photosynthesis?
- Glucose
- Oxygen
Where does photosynthesis take place in a plant?
Inside plant cells in small objects called chloroplasts.
What is the role of chlorophyll in photosynthesis?
Chlorophyll absorbs the light energy needed for photosynthesis.
What is the word equation for photosynthesis?
Carbon dioxide + water → glucose + oxygen
Why is photosynthesis important for life on Earth?
It provides oxygen needed for respiration and supports food chains.
True or False: All organisms respire to release energy.
True
What balance does photosynthesis help maintain in the ecosystem?
It decreases the concentration of carbon dioxide and helps maintain levels of oxygen.
What are some examples of producers that require photosynthesis?
- Algae
- Seaweed
- Grasses
- Phytoplankton
How do plants and animals depend on each other in the context of photosynthesis?
Plants need carbon dioxide released by animals, while animals need oxygen released by plants.
What is a symbiotic relationship in the context of photosynthesis?
A relationship where plants and animals benefit from each other’s processes.
What is the initial use of glucose produced during photosynthesis?
To release energy through respiration.
Fill in the blank: Glucose can be bonded together to make many types of ______.
[carbohydrates]
What is cellulose and its significance?
A natural polymer that strengthens plant cell walls and is important as dietary fiber for humans.
What is starch and its role in plants?
An insoluble storage molecule made from glucose, used to store energy.
How can starch be utilized by plants?
It can be converted back to glucose when needed, such as during respiration at night.
What can glucose be converted into besides carbohydrates?
- Fats
- Oils
- Amino acids
What role do amino acids play in plants?
They are used to synthesize proteins.
What minerals are absorbed by plant roots to help make amino acids?
Nitrate ions
