What is called movement of cell against concentration gradient ?

Related Mcqs:

1. Transport of minerals from soil to epidermal cells of roots via carrier protein molcules along their concentration gradient is called___________?

   A. Diffusion.
   B. Facilitated diffusion.
   C. Passive transport.
   D. Active transport.

2. Sodium ions are “pumped” from a region of lower concentration to a region of higher concentration in the nerve cells of humans. This process is an example of

   A. Diffusion
   B. Passive transport
   C. Osmosis
   D. Active transport

3. If the concentration of enzyme is kept constant and amount of substrate is increased a point is reached where increase in substrates concentration does not affect the reaction rate because of____________________?

   A. Enzymes get denatured at higher substrate conc
   B. Rate of reaction is indirectly proportional to substrate concentration at this point
   C. All the active sites on enzyme molecule are occupied
   D. None of these

4. Movement of the material across the cell membrane which does not requiring expenditure of metabolic energy is called__________?

   A. Active transport
   B. Passive transport
   C. Co-transport
   D. Counter transport

5. Maintenance of normal resting potential via movement of K+ inside the cell and na+ out is a/an ___________ process?

   A. Active
   B. Passive
   C. Diffusional
   D. None of these.

6. Chemical component/s less in eukaryotic cell as compared to prokaryotic cell is / are (i) lipids (ii) carbodydrates (iii) proteins (iv) DNA_________________?

   A. i & ii
   B. iii & iv
   C. i ii iii & iv
   D. iv only

7. If a plasmolysed plant cell is placed in water the cell will___________?

   A. Burst
   B. Be Killed
   C. Be deplasmolysed
   D. Show no change in it

8. which of the following gives to rise two daughter cell during cell division?

   A. meiosis
   B. mitosis
   C. both a & b
   D. none of these

   Submitted by: Muhammad Nawaz

9. In which phase of cell cycle cell organelles are formed?

   A. S Phase
   B. G1 Phase
   C. G2 Phase
   D. G0 Phase

   Submitted by: Eesha Khalid

10. Which of the following cell organelles is absent in animal cells and present in a plant cell?

    A. Cell wall
    B. Cytoplasm
    C. Vacuoles
    D. Mitochondria

    Submitted by: Nayab Idrees