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What types of movement happen across the cell membrane?

Important Questions on To Life Processes

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Science>Biology>To Life Processes>Exchange of Materials through Cell Membrane
 A few dried raisins are put in water for some time and then placed inside the concentrated salt solution. What we observe is, raisins:
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Science>Biology>To Life Processes>Exchange of Materials through Cell Membrane
The movement of molecules during diffusion can be described through all of the following except - 
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Science>Biology>To Life Processes>Exchange of Materials through Cell Membrane
Explain the following terms:
Diffusion
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Science>Biology>To Life Processes>Exchange of Materials through Cell Membrane
In simple organisms, exchange of gases and excretion occurs through –
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Science>Biology>To Life Processes>Exchange of Materials through Cell Membrane
Which one of the following will have maximum diffusion pressure?
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Science>Biology>To Life Processes>Exchange of Materials through Cell Membrane
The plasma membrane (pm) forms the boundary of lung cells. Which of the following statements is true for the pm?
A. Plasma membrane is a semipermeable membrane
B. Water moves across the pm by osmosis.
C. O2 and CO2 can cross the pm by diffusion.
D. Na+ and K+ ions can pass the pm by diffusion.
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Science>Biology>To Life Processes>Exchange of Materials through Cell Membrane
Give reasons why a perfume sprayed in a corner of a room can be smelled in other parts of the room?
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Science>Biology>To Life Processes>Exchange of Materials through Cell Membrane
How does Amoeba obtain its food?
 
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Science>Biology>To Life Processes>Exchange of Materials through Cell Membrane
How does carbon dioxide move in and out of cells?
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Science>Biology>To Life Processes>Exchange of Materials through Cell Membrane

What is diffusion ?

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Science>Biology>To Life Processes>Exchange of Materials through Cell Membrane
What is diffusion? Write its significance?
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Science>Biology>To Life Processes>Exchange of Materials through Cell Membrane
The plasma membrane is porous and?
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Science>Biology>To Life Processes>Exchange of Materials through Cell Membrane
Glucose is taken back from glomerular filtrate through 
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Science>Biology>To Life Processes>Exchange of Materials through Cell Membrane
In ____ permease assists a molecule to diffuse through the membrane that it cannot penetrate alone.
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Science>Biology>To Life Processes>Exchange of Materials through Cell Membrane
Write a note on endocytosis.
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Science>Biology>To Life Processes>Exchange of Materials through Cell Membrane
Movement of a substance from the area of low concentration to an area of high concentration is called diffusion. 
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Science>Biology>To Life Processes>Exchange of Materials through Cell Membrane
Assume that an actively respiring cell has 3x number of K+ in its cytoplasm and 2x number of K+ entered into the cell. What is the process by which K+ transport has taken place?
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Science>Biology>To Life Processes>Exchange of Materials through Cell Membrane
The smell of hot food spreads by the process of _____. (Osmosis/Diffusion)
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Science>Biology>To Life Processes>Exchange of Materials through Cell Membrane
In Amoeba, exchange of environmental oxygen and the body's carbon dioxide occurs by
MEDIUM
Science>Biology>To Life Processes>Exchange of Materials through Cell Membrane

Endocytosis is _____
(i) intake of extra-cellular fluid, droplets and macromolecules.
(ii) intake of extracellular particles.
(iii) Growth of plasma membrane around the particle as pseudopodia.
(iv) a nutritive process.
Select the correct option:

Note:- The options provided were not helping to choose the correct answer hence one of the option is changed.