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Test: Tissues- Assertion & Reason Type Questions- 2 - Class 9 MCQ


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10 Questions MCQ Test Biology for Class 9 - Test: Tissues- Assertion & Reason Type Questions- 2

Test: Tissues- Assertion & Reason Type Questions- 2 for Class 9 2024 is part of Biology for Class 9 preparation. The Test: Tissues- Assertion & Reason Type Questions- 2 questions and answers have been prepared according to the Class 9 exam syllabus.The Test: Tissues- Assertion & Reason Type Questions- 2 MCQs are made for Class 9 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Tissues- Assertion & Reason Type Questions- 2 below.
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Test: Tissues- Assertion & Reason Type Questions- 2 - Question 1

Direction: In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:

Assertion: Ciliated epithelium helps in movement of particles.

Reason: Cilia help in movement.

Detailed Solution for Test: Tissues- Assertion & Reason Type Questions- 2 - Question 1
The main function of the cilia is to move particles. It is present in inner surfaces of some hollow organs such as fallopian tubes, bronchioles and small bronchi and help in movement of the particles present there. Thus the function of ciliated epithelium (as it possesses cilia) is the movement of particles.
Test: Tissues- Assertion & Reason Type Questions- 2 - Question 2

Direction: In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:

Assertion : Most of plant tissues are dead.

Reason : Due to sedentary existence of plants, dead cells provide mechanical strength more easily than live ones and need less maintenance.

Detailed Solution for Test: Tissues- Assertion & Reason Type Questions- 2 - Question 2
Most of the plant tissues are dead since dead cells can provide mechanical strength as easily as live ones, and need less maintenance. They consume more energy as compared to plants. Most of the tissues they contain are living.
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Test: Tissues- Assertion & Reason Type Questions- 2 - Question 3

Direction: In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:

Assertion: Epithelial tissues are covering or protective tissues.

Reason: Materials are exchanged at the surface across the epithelial tissues.

Detailed Solution for Test: Tissues- Assertion & Reason Type Questions- 2 - Question 3
Epithelial tissue forms a continuous layer over the free surfaces of many other tissues. Consequently, it covers the external surface of the animal body and the internal (luminal) surfaces of visceral organs, body cavities and blood vessels. Thus, it protects the underlying and overlying tissues. Another important function of epithelial tissue is exchange of materials.
Test: Tissues- Assertion & Reason Type Questions- 2 - Question 4

Direction: In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:

Assertion : Permanent tissue is composed of mature cells.

Reason : Meristematic tissue is a group of actively dividing cells.

Detailed Solution for Test: Tissues- Assertion & Reason Type Questions- 2 - Question 4

A meristematic tissue is a group of cells. That are in a continuous state of division or retain their power of division. Permanent tissues are composed of mature cells that, after undergoing complete growth, have assumed a definite shape, size and function and have temporarily or permanently lost the power of division.

Test: Tissues- Assertion & Reason Type Questions- 2 - Question 5

Direction: In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:

Assertion: Thigh muscles can get tired but not heart muscles.

Reason: Muscles of thigh are voluntary while muscles of heart are involuntary muscles.

Detailed Solution for Test: Tissues- Assertion & Reason Type Questions- 2 - Question 5

Explanation: Thigh muscles (skeletal muscles) can get tired because they are designed for short-term, powerful contractions and are under voluntary control. Heart muscles, on the other hand, are designed for continuous contractions and are involuntary muscles. However, the reason thigh muscles get tired is not simply because they are voluntary while heart muscles are involuntary.

The primary reason for this difference is due to the energy supply and metabolism of these muscle types. Skeletal muscles, like the thigh muscles, rely on both aerobic and anaerobic metabolism for energy production. During periods of intense activity, they can quickly run out of energy and produce lactic acid, leading to fatigue and muscle cramps.

Heart muscles, on the other hand, have a very high density of mitochondria and a rich supply of blood, ensuring a continuous supply of oxygen and nutrients. This allows them to generate energy through aerobic metabolism constantly and efficiently, preventing fatigue.

Test: Tissues- Assertion & Reason Type Questions- 2 - Question 6

Direction: In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:

Assertion : The inner lining of intestine has tall epithelial cells.

Reason : Columnar epithelium facilitates absorption and secretion.

Detailed Solution for Test: Tissues- Assertion & Reason Type Questions- 2 - Question 6
Both assertion and reason are true and reason is the correct explanation of assertion. Where absorption and secretion occur, such as in the inner lining of the intestine, tall epithelial cells or columnar epithelium is present. This epithelium facilitates movement or diffusion across the epithelial barrier.
Test: Tissues- Assertion & Reason Type Questions- 2 - Question 7

Direction: In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:

Assertion: Muscle fibers are contractile in nature.

Reason: Cells of muscle tissue can shorten forcefully and again return to the relaxed state.

Detailed Solution for Test: Tissues- Assertion & Reason Type Questions- 2 - Question 7
Muscle fibres are said to be contractile in nature because cells of muscle tissue can shorten forcefully and then can again return to the relaxed state. This specialised property is known as contractility.
Test: Tissues- Assertion & Reason Type Questions- 2 - Question 8

Direction: In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:

Assertion : Vascular or conductive tissue is a distinctive feature of complex plants.

Reason : Vascular tissue has made survival of complex plants possible in terrestrial environment.

Detailed Solution for Test: Tissues- Assertion & Reason Type Questions- 2 - Question 8
Xylem and phloem are vascular tissues that conduct water, minerals and food to various parts of plants. Vascular tissue is a distinctive feature of the complex plants, one that has made their survival in terrestrial environment possible.
Test: Tissues- Assertion & Reason Type Questions- 2 - Question 9

Direction: In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:

Assertion: Specialization in cells are advantageous for the organism.

Reason: It increases the efficiency of an organism.

Detailed Solution for Test: Tissues- Assertion & Reason Type Questions- 2 - Question 9
Specialization of cells into tissue, organ and organ systems is advantageous for organism as it increases the efficiency through division of labour.
Test: Tissues- Assertion & Reason Type Questions- 2 - Question 10

Direction: In the following questions, a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as:

Assertion : Parenchyma cells help in storage of food.

Reason : Parenchyma cells are the main seats of photosynthesis.

Detailed Solution for Test: Tissues- Assertion & Reason Type Questions- 2 - Question 10
The functions of the parenchymatous tissue is store food material in the form of starch, proteins, oils and fats. The parenchymatous tissues in root and stem tubers are good examples. The xylem and phloem parenchyma also store starchy food. The parenchymatous cells that contain chloroplasts are the main seats of photosynthesis, e.g., palisade cells of leaf.
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