Membranes of the grane are sites where?

Related Mcqs:

1. Most cell membranes are composed principally of ?

   A. DNA ad protein
   B. Protein and Lipids
   C. Protein and Chitin
   D. Protein and RNA

2. Spherical or tubular membranes which separate the material present in endoplasmic reticulum from that of cytoplasmic material are called__________?

   A. Cytosol
   B. Cisternae
   C. Polysomes
   D. Cristae

3. Chlorophylls are found embedded in the __________ membranes?

   A. Stroma
   B. Grana
   C. Thylakoid
   D. Intergrana

4. In all plants the major sites of phosynthesis are___________?

   A. Leaves respire and utilize O2 and release CO2.
   B. Stems
   C. Roots
   D. Branches

5. The molecules of living matter that provide building blocks are mostly based on:

   A. Carbon
   B. Nitrogen
   C. Hydrogen
   D. Ammonia

6. Blood is carried towards the heart by __________?

   A. Arteries
   B. Capillaries
   C. Veins
   D. none of these

7. Co-enzyme is often formed from ?

   A. lipid
   B. protein
   C. inorganic ion
   D. vitamin

8. The number of species of organisms currently known to science is?

   A. 3500000
   B. 35000
   C. 2500000
   D. 25000000

9. Pulling upward of water and dissolved minerals towards the leaves through the xylem tissue is called__________?

   A. Transpiration pull
   B. Root pressure
   C. Ascent of sap.
   D. All of these

10. Carcinogens is __________ types of chemicals.

    A. Cancer causing
    B. Pneumonia causing
    C. Emphysema
    D. Asthma

    Submitted by: Hamais Haider