Which of the following organisms do not possess cell wall?

  1. Plant cell
  2. Bacteria
  3. Fungi
  4. Amoeba
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Imbibition

Find the incorrect one.

  1. A special type of diffusion
  2. Water is absorbed by solids-colloids
  3. Causing the increase in volume
  4. Absorption of water by seeds, dry wood and cell
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Prehistoric man used which of the following methods to split rocks and boulders?

  1. Plasmolysis
  2. Active Transport
  3. Osmosis
  4. Imbibition
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Emergence of seedling is due to

  1. Plasmolysis
  2. Active Transport
  3. Osmosis
  4. Imbibition
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In germination of seed, what is absorbent?

  1. Seed
  2. Water
  3. Environment
  4. Seedling
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During Imbibition which of the following is pre-requisite?

  1. Water potential gradient between the absorbent and the liquid imbibed
  2. Affinity between absorbent / adsorbent
  3. Amount of seeds
  4. Both A and B
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From the twig experiment in which twig is placed in colored water, which of the following can be deduced?

  1. The path of organic Acid
  2. The path of hormones
  3. The path of water
  4. The development of twig
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Long distance transport cannot be carried by

  1. Diffusion Alone
  2. Active transport alone
  3. Bulk flow
  4. Both A and B
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Movement of molecule across a typical plant cell i.e. 50 micrometer takes

  1. 10 seconds
  2. 15 seconds
  3. 2.5 seconds
  4. 16 seconds
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Mass flow or bulk flow system is the movement of substances in bulk or en masse from one point to another point as a result of

  1. Pressure Difference between two points
  2. Osmotic gradient between two points
  3. Concentration gradient between two points
  4. Cannot be predicted
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