Question

Define the following
i) Active transport
ii) Translocation
iii)Concentration gradient
iv)Root pressure
v) Transpiration pull

Answer 1

i) Active transport:-In cellular biology, active transport is the movement of molecules across a cell membrane from a region of lower concentration to a region of higher concentration—against the concentration gradient. Active transport requires cellular energy to achieve this movement.

ii) Translocation:- Translocation means a change in location. It often refers to genetics, when part of a chromosome is transferred to another chromosome. Chromosomes are structures that carry genes, our units of heredity. When this type of translocation occurs, it can cause flaws in chromosomes.

iii)Concentration gradient:-

A concentration gradient occurs when the concentration of particles is higher in one area than another. In passive transport, particles will diffuse down a concentration gradient, from areas of higher concentration to areas of lower concentration, until they are evenly spaced.

iv)Root pressure:- Root pressure, in plants, force that helps to drive fluids upward into the water-conducting vessels (xylem).

v) Transpiration pull:- Transpiration pull or the suction force is the force which aids in drawing the water upward from roots to leaves.

Answer 2

here's the answer to your question.

i) Active Transport.

Active transport is the movement of dissolved molecules into or out of a cell through the cell membrane, from a region of lower concentration to a region of higher concentration. Uptake of ions from soil water by root hair cells in plants.

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ii) Translocation.

Translocation is a type of chromosomal abnormality in which a chromosome breaks and a portion of it reattaches to a different chromosome. Chromosomal translocations can be detected by analyzing karyotypes of the affected cells.

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iii) Concentration Gradient.

A concentration gradient occurs when the concentration of particles is higher in one area than another. In passive transport, particles will diffuse down a concentration gradient, from areas of higher concentration to areas of lower concentration, until they are evenly spaced.

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iv) Root pressure.

Root pressure, in plants, force that helps to drive fluids upward into the water-conducting vessels (xylem). It is primarily generated by osmotic pressure in the cells of the roots and can be demonstrated by exudation of fluid when the stem is cut off just aboveground.

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v) Transpiration pull.

A transpiration pull could be simply defined as a biological process in which the force of pulling is produced inside the xylem tissue. This force helps in the upward movement of water into the xylem vessels. In this process, loss of water in the form of vapours through leaves are observed.

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Hope this helps you;)

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