Plant Nutrition & Transport

Question 1

What is photosynthesis and it’s equation?

Answer 1

Process by which plants make glucose using light, water, and CO₂.

6CO₂ + 6H₂O → C₆H₁₂O₆ + 6O₂

Question 2

What are the limiting factors of photosynthesis?

Answer 2

Light intensity, CO₂ concentration, and temperature.

Question 3

What are the roles of nitrates, magnesium, and potassium in plant growth?

Answer 3

Nitrates: Make amino acids and proteins.

Magnesium: Make chlorophyll.
Potassium: Help enzymes in photosynthesis and respiration.

Question 4

What are xylem and phloem and their functions?

Answer 4

Xylem: Transports water and minerals from roots to leaves.

Phloem: Transports sugars from leaves to the rest of the plant.

Question 5

What is transpiration?

Answer 5

Loss of water vapor from stomata in leaves.

Question 6

What factors affect the rate of transpiration?

Answer 6

Light intensity, temperature, humidity, and wind.

Question 7

How do guard cells control the opening and closing of stomata?

Answer 7

Turgid guard cells open stomata; flaccid guard cells close them.