Guard cells of stoma are ________ ?

Related Mcqs:

1. Stoma, found in the epidermis of leaves closes when guard cells

   A. Gain Water
   B. Lose Water
   C. Exchange gas
   D. None of These

   Submitted by: Rana usama Ibrahim

2. Stomata open due to _________ of K+ into the guard cells from the surrounding epidermis

   A. Diffusion
   B. Active transport
   C. Osmosis
   D. All of these

3. If the number of chromosomes in most body cells of a mammal is 40, the cells in the seminiferous tubule will have___________?

   A. 40 chromosomes
   B. 20 chromosomes
   C. 10 chromosomes
   D. While some other will have 20

   Submitted by: Rashid Mehmood

4. There are cells in human body called Faggot cells which cause__________?

   A. AIDS
   B. Tuberculosis
   C. Smallpox
   D. Leukaemia

   Submitted by: Ali Mallah

5. Ingestion of bacteria by certain type of cells is termed as ________ ?

   A. Acclimatization
   B. Agglutination
   C. Paralysis
   D. Phagocytosis

   Submitted by: Rashid Mehmood

6. Fuel used by cells in cellular respiration to get energy is ________ ?

   A. polysaccharides
   B. Polypeptides
   C. Glucose
   D. Sugar

   Submitted by: Rashid Mehmood

7. Number of cells that are destroyed in adults by apoptosis are ________ ?

   A. 20 to 35 billion cells
   B. 50 to 70 billion cells
   C. 10 to 20 billion cells
   D. 15 to 25 billion cells

   Submitted by: Rashid Mehmood

8. A group of similar cells that perform a specific function is:

   A. Organ
   B. Tissues
   C. Organelle
   D. Organ System

9. In plants, the neighbouring cells are connected with one another by__________?

   A. Plasmodesmata
   B. Cell walls
   C. Vacuoles
   D. Both ‘A’ & ‘B’

10. Oil body is found in the cells of___________?

    A. Diatoms
    B. Slime moulds
    C. Chlorophycean forms
    D. None of the these