Download App

Transport in Plants — BIOLOGY STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceBIOLOGYTransport in Plants3 Marks
Question
How does the phenomenon of mass/ bulk flow differ from that of diffusion?
✓

Answer

Differences between mass flow and diffusion are:
S. No
Mass Flow
Diffusion
1.
It is the movement of substances in bulk or in masses from one point to another due to pressure differences between the two points.
It is the movement of substances from a region of higher concentration/ pressure to a region of lower concentration or pressure.
2.
All substances dissolved or suspended in water, move with the same pace.
Different substances move independently depending on their concentration gradients.

Need a full question paper?

Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

Start Generating Free

Explore more

More "3 Marks Question" from Transport in Plants→Transport in Plants — all question types→BIOLOGY STD 11 Science question papers→Gujarat Board STD 11 Science question papers→Gujarat Board question paper generator→

Similar questions

Draw a labelled diagram showing reabsorption and secretion of major substances at different partsof the nephron.
→
Explain in brief the nervous system of cockroach.
→
How was three kingdom system different than four kingdom system?
→
Explain the difference between Sinu Auricular Node and Auriculo Ventricular Node.
→
  1. Name the cranial meninges that cover the brain.
  2. Write down one function of cerebellum and cerebrum each.
→
Differentiate between diffusion and translocation in plants.
→
It is observed that deficiency of a particular element showed its symptoms initially in older leaves and then in younger leaves.
  1. Does it indicate that the element is actively mobilised or relatively immobile?
  2. Name two elements which are highly mobile and two which are relatively immobile.
How is the aspect of mobility of elements important to horticulture and agriculture?
→
What are Lipids? Explain.
→
  1. Name the cranial meninges that cover the brain.
  2. Give one function of the following:
  1. Cerebrum.
  2. Hypothalamus.
  3. Medulla.
  4. Cerebellum.
→
Various types of transport mechanisms are needed to fulfil the mineral requirements of a plant. Why are they not fulfilled by diffusion alone?
→