B4 Flashcards
What is photosynthesis?
The process by which green plants and algae use sunlight to produce glucose from carbon dioxide and water
This process occurs in chloroplasts containing chlorophyll.
What is the balanced equation for photosynthesis?
6CO₂ + 6H₂O → C₆H₁₂O₆ + 6O₂
This equation represents the conversion of carbon dioxide and water into glucose and oxygen.
What is glucose used for in plants?
- Respiration
- Stored as starch
- Converted into cellulose for cell walls
Glucose serves multiple functions essential for plant growth and structure.
What factors affect photosynthesis?
- Light intensity
- Carbon dioxide concentration
- Temperature
These factors can enhance or limit the rate of photosynthesis.
Define respiration.
The process of releasing energy from glucose, essential for cell activities
It is crucial for maintaining cellular functions.
What are the two types of respiration?
- Aerobic respiration
- Anaerobic respiration
These types differ mainly in their oxygen requirements.
What is the equation for aerobic respiration?
Glucose + Oxygen → Carbon dioxide + Water + Energy
This equation highlights the reactants and products of aerobic respiration.
What occurs during anaerobic respiration in humans?
Produces less energy and lactic acid as a byproduct
This process occurs during intense exercise when oxygen is scarce.
What do plants and yeast produce during anaerobic respiration?
Ethanol and carbon dioxide
This process is utilized in brewing and baking industries.
What does metabolism refer to?
All the chemical reactions in a cell or organism
This includes energy production, storage, and synthesis of biomolecules.
What are some key metabolic processes involving glucose?
- Breaking down glucose for respiration
- Converting glucose into starch or glycogen for storage
- Using glucose and nitrates to make amino acids for protein synthesis
These processes are vital for growth, repair, and energy needs.
True or False: Photosynthesis only occurs in green plants.
False
Algae also perform photosynthesis.
