Stomata

Q. Stomata in a mustard leaf are:

1. Dumb-bell shaped
2. Kidney shaped
3. Rectangular
4. Barrel-shaped

Q.

Water secreting glands are known as?

1. Tyloses

2. Hydathodes

3. Phellogen

4. Phelloderm

Q.

What is stomatal apparatus? Explain the structure of stomata with a labelled diagram.

Q. The sugarcane plant has

1. dumb-bell shaped guard cells
2. tap-root system
3. reticulate venation
4. open vascular bundle

Q. Urine is slightly thicker in summer than in winter.Why?

Q.

Sugarcane plant has

1. reticulate venation

2. capsular fruits

3. pentamerous flowers

4. dumb-bell shaped guard cells

Q. The functions of the stomata does not include ________.

1. intake of carbon dioxide
2. removal of oxygen
3. guttation
4. loss of water vapour

Q. The specialised epidermal cells present in the vicinity of guard cells are called

1. bulliform cells
2. subsidiary cells
3. companion cells
4. endodermal cells

Q. In land plants, the gurad cells differ from other epidermal cells in having:

1. Chloroplasts
2. Cytoskeleton
3. Mitochondria
4. Endoplasmic reticulum

Q. inonion food materials are stored in

Q.

what are the steps common to c3 and c4 photosynthesis ?