Plant nutrition

Cards (15)

What is the word equation for photosynthesis?
Carbon dioxide + water → glucose + oxygen (light + chlorophyll)
What is the balanced symbol equation for photosynthesis?
6CO₂ + 6H₂O → C₆H₁₂O₆ + 6O₂ (light + chlorophyll)
What type of energy is converted in photosynthesis and into what?
Light energy is converted into chemical energy stored in glucose.
Name three factors that effect the rate of photosynthesis
Carbon dioxide concentration, light intensity, temperature
How does carbon dioxide concentration affect photosynthesis
Higher co2 increases the rate of photosynthesis
What happens to the rate of photosynthesis is the temperature gets too high?
It decreases due to enzyme denaturation
Why are leaves broad and thin
broad to absorb more light, thin for quick gad diffusion
What is the role of chloroplasts in leaves
They contain chlorophyll to absorb light for photosynthesis
What do the xylem and phloem do jn leaves
Xylem transports water, phloem transports sugars
What are the stomata and their function
pores for gas exchange (co2 in, O2 out)
Why do plants need magnesium ions
For making chlorophyll
Why do plants need nitrate ions
To make amino acids for proteins
How do you test a leaf for starch
Boil, de-colourise With ethanol and add iodine(blue-black = starch present
what does starch in a leaf indicate
That photosynthesis has occurred
What does the oxygen evolution practical demonstrate
That oxygen is a product of photosynthesis