Biology
If the colour of a leaf changes to blue-black when a few drops of iodine are added to it, then it shows the presence of
- starch
- glucose
- protein
- vitamins
Related Questions
Each stoma has two bean-shaped cells called
- palisade
- guard cells
- epidermis
- chloroplast
When the guard cells lose water, they lose their turgidity and the stomata
- open
- close
- remains same
- disappears
The optimum temperature at which the photosynthesis occurs best is around
- 30°C
- 65°C
- 100°C
- 45°C
Fill in the blanks:
All organisms need _________ to live and grow.