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CBSE 11th Standard Biology Subject Structural Organisation in Animals HOT Questions 1 Marks Questions 2021

Published on: 29/05/2021

QB365 Provides the HOT Question Papers for Class 11 Biology, and also provide the detail solution for each and every HOT Questions. HOT Questions will help to get more idea about question pattern in every exams and also will help to get more marks in Exams

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Std: 11th Standard CBSE - Biology

chapter: - HOT Questions

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Questions:

Generic 2

10 x 2 = 20

Expalin mouth parts of cockroach with diagram.

In stomach HCl is secreted by a gland. Explain the nature of gland.

Pawan bites by an ant on finger and after few minutes the finger swells up. How does it occur? Which cells are responsible for it?

Why the blood of cockroach is not responsible for transporting respiratory gases?

Which part of earthworm's body produces ootheca and what does it contain?

How does earthworm spoll the playgrounds?

Plasma protein acts as acid-base buffer in the blood . Explain

Why the bone is the hardest tissue in the body?

Justify the name pseudo stratified epithelium

10.

What is the property of glandular epthelium ?

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Answers Key:

Generic 2

10 x 2 = 20

HCl secreted by oxyntic cells. Oxyntic cells are unicellular and present mucosa of stomach.

Mast cell release heparin which swells the fingers

In cockroach, blood is not responsible for transporting respiratory gases because the respiratory pigment is absent in their blood.

Ootheca is produced by clitellum. Mature sperms, eggs and nutritive fluid are deposited in it.

The earthworms make burrows in the soil of playground. This spoils the ground.

plasma protein maintains the pH of the blood by neutralising the strong acids and bases so it acts as acid base buffers

The matrix of the bone is through and contains a protein called ossein which makes it hard . It has mineral deposits of calcium and phisphates

This epithelium is made up of a single layer of columnar cells but it appears as two layered . Hence it is named pseudo stratified epithelium

10.

Glandular epithelium, also known as glandular tissue, refers to a type of epithelial tissue involved in the production and release of different secretory products, such as sweat, saliva, breast milk, digestive enzymes, and hormones, among many other substances.