Rate of photosynthesis

What are the reactants in photosynthesis

• H₂O and CO₂
• C₆H₁₂O₆ and O₂
• C₆H₁₂O₆ and CO₂
• O₂ and H₂O

How would light intensity generally affect the rate of photosynthesis?

• Increases the rate, up to a point
• Increases the rate
• Decreases the rate
• No relationship to the rate

Tags

NGSS.MS-LS1-5

NGSS.MS-LS1-6

Why would temperature affect the rate of photosynthesis?

• Enzymatic activity is usually temperature dependent
• plant cells expand with temp, have greater surface area
• More CO₂ dissolved in the water
• More glucose needed for respiration at higher temperatures

Tags

NGSS.MS-LS1-5

NGSS.MS-LS1-6

How would the concentration of CO₂ in water affect photosynthesis?

• The higher the CO₂, the greater the rate
• The higher the CO₂, the lower the rate
• CO₂ concentration doesn't affect photosynthesis
• a greater rate of photosynthesis causes higher CO₂ concentrations 

Tags

NGSS.MS-LS1-5

NGSS.MS-LS1-6

If we enclosed a plant in an air-proof bottle, what would happen to the rate of photosynthesis 

• Gradually slow down to zero because CO₂ is used up
• Shows a constant rate as long as the light remains on
• Gradually speeds up because O₂ builds up
• Gradually slows down because glucose builds up

Tags

NGSS.MS-LS1-6

At which distance is the rate of photosynthesis the highest?

• 10cm
• 20cm
• 15cm
• 12cm

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

What is the relationship between distance and the rate of photosynthesis? 

• inverse square
• proportional
• inverse proportional
• square

A perfectly balanced aquarium has

• as many fish as plants
• equal biomasses of fish and plants
• equal rates of photosynthesis and respiration
• more plants than animals

How is reliability increased in the investigation we just conducted?

• more trials
• more accurate instruments to measure bubble rate
• Include a control treatment
• Control more variables

How is accuracy increased in the investigation we just conducted?

• more trials
• more accurate instruments to measure bubble rate
• Include a control treatment
• Control more variables