What is called movement of cell against concentration gradient ?

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

Submitted by: Malik Asghar Hussain

Active transport, this is the only transport method that can move species against their concentration gradient (from low to high concentration). Facilitated diffusion only moves species down their concentration gradient from high to low concentration.

Related Mcqs:

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.
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
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
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
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A. Active
B. Passive
C. Diffusional
D. None of these.
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
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
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
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In which phase of cell cycle cell organelles are formed?
A. S Phase
B. G1 Phase
C. G2 Phase
D. G0 Phase
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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
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