Flashcards in Plant Nutrition Deck (12):
Where in plants does photosynthesis occur?
Word equation for photosynthesis
carbon dioxide + water = glucose + oxygen
Balanced symbol equation for phtotsynthesis
6CO2 + 6H2O (+ light energy) = C6H12O6 + 6O2
How do you know if temperature is the limiting factor in photosynthesis?
Light and CO2 will be in plentiful supply
Explain why the temperature has to be just right in photosynthesis
If temp gets too high - over 45°c - the plants enzymes denature, so photosynthesis stops. However, temp does increase the rate of photosynthesis, up to that certain point.
3 ways leaves are adapted for photosynthesis
Leaves are broad - more area exposed to light
Most chloroplasts found in palisade layer (near top = most light)
Upper epidermis is transparent, so light can pass to palisade layer
What 3 mineral ions do plants need for growth?
Nitrates, phospates and potassium
What are nitrates needed for in plants?
What are phospates needed for in plants?
Respiration and growth
What is potassium needed for in plants?
Respiration and photosynthesis
What does magnesium do in plants?
It makes chlorophyll