Download App

Transport in Plants — BIOLOGY STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceBIOLOGYTransport in Plants3 Marks
Question
Define water potential and solute potential.
✓

Answer

The measure of the relative tendency of water to move from one area to another, and is commonly represented by the Greek letter $\Psi_{\mathrm{w}}$ (Psi). Supplement. Water potential is caused by osmosis, gravity, mechanical pressure, or matrix effects including surface tension. Solute potential Symbol $\Psi_s$, the component of water potential that is due to the presence of solute molecules. It always has a negative value as solutes lower the water potential of the system "Solute potential"

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

A particular plant tissue is responsible for a particular task. It is similar to which of the following? How does specialization help in making our work easy?
  1. A particular teacher is responsible for teaching a particular subject in school.
  2. A particular student is good at a certain subject only.
  3. Some students are good at many subjects.
→
Each plant or group of plants have some phylogenetic significance in relation to evolution: Cycas, one of the few living members of gymnosperms is called as the 'relic of past'. Can you establish a phylogenetic relationship to Cycas with any other group of plants that justifies the above statement?
→
In biology period, teacher was explaining about the soil and the different nutrients essential for the growth and development of plants. She told students that out of all the elements that plants absorb, only some of them are essential for plants to grow. Rajeev had a query and asked teacher next day that how can we derive and on what basis that this particular element is essential or not for the plant?
  1. What are essential elements?
  2. Mention any four criteria that ensure the essentiality, particular element.
  3. Name some essential elements.
  4. What values you infer from Rajeev's character?
→
  1. Differentiate between RER and SER.
  2. Why are mitochondria called 'the power house' of the cell?
→
Define respiration. Mention the value of Respiratory Quotient (RQ) for proteins and fats.
→
What controls the movement of lungs in humans (mammals)? Explain with diagram.
→
Draw the labelled diagram of the following: V.S. of maize seed.
→
  1. Mention the symptoms of manganese toxicity in plants.
  2. How does manganese toxicity result in symptoms of deficiency of iron, magnesium and calcium in plants?
→
Double fertilisation is an unique event to angiosperms. Explain the event and its possible significance.
→
What happens to the respiratory process in a man going up a hill?
→