Stomata
Trending Questions
Q. In land plants, the gurad cells differ from other epidermal cells in having:
- Mitochondria
- Chloroplasts
- Cytoskeleton
- Endoplasmic reticulum
Q.
Water secreting glands are known as?
Tyloses
Hydathodes
Phellogen
Phelloderm
Q. The functions of the stomata does not include ________.
- intake of carbon dioxide
- removal of oxygen
- guttation
- loss of water vapour
Q. Which of the following facilitates opening of stomatal aperture?
- Decrease in turgidity of guard cells
- Radial orientation of cellulose microfibrils in the cell wall of guard cells
- Contraction of outer wall of guard cells
- Longitudinal orientation of cellulose microfibrils in the cell wall of guard cells
Q. Stomata is part of the _________ tissue system.
- ground
- epidermal
- vascular
- conducting
Q. Specialised epidermal cells surrounding the guard cells are called
- complementary cells
- subsidiary cells
- bulliform cells
- lenticels
Q. Stomata in a mustard leaf are:
- Dumb-bell shaped
- Kidney shaped
- Rectangular
- Barrel-shaped
Q. The sugarcane plant has
- dumb-bell shaped guard cells
- tap-root system
- reticulate venation
- open vascular bundle
Q. The diagram below represents a cross section of a leaf. Which region serves primarily to regulate the stomatal opening?

- A
- B
- C
- D
Q. The specialised epidermal cells present in the vicinity of guard cells are called
- bulliform cells
- subsidiary cells
- companion cells
- endodermal cells