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Defense Mechanism in Plants

Squamous epit...

Question

Squamous epithelium are involved in forming a diffusion boundary.
What is a diffusion boundary??

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Solution

DIFFUSION IS A TYPE OF MOVEMENT OF MOLECULES FROM HIGHER CONCENTRATION TO LOWER CONCENTRATION ,AND THE MEMBRANE BY WHICH THIS OCCUR IS KNOWN AS DIFFUSION MEMBERANE

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(i) (a) is made of single thin layer of flattened cells with regular boundaries.
(ii) (b) is commanly found in ducts of glands & nephrons.
(iii) (a) is found in walls of blood vessels and air sacs of heart and are involved in a function like diffusion boundaries
(iv) Both (a) & (b) are included under simple
epithelium.

Choose the option with correct statement

Q. Match the following and choose the correct option:

A. Simple squamous epithelium	1. Ducted glands
B. Simple cuboidal epithelium	2. Ductless glands
C. Exocrine glands	3. Secretion and absorption
D. Endocrine glands	4. Diffusion and osmosis occur

Q. The squamous epithelium is mainly involved in

Q. Teacher said “The air is purified at the alveoli”. Shishir was curious and asked how it happens. The teacher went on and explained how capillaries are intertwined with the alveoli and at the boundaries, diffusion occurs and air is purified. If it is true, what causes this diffusion? Select the best option.

Q. The process of diffusion is involved in _____________.

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Defense Mechanism in Plants

Standard X Biology

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