Class 9 Exam  >  Class 9 Tests  >  Test: Protective Tissues In Animals - Class 9 MCQ

Test: Protective Tissues In Animals - Class 9 MCQ


Test Description

5 Questions MCQ Test - Test: Protective Tissues In Animals

Test: Protective Tissues In Animals for Class 9 2024 is part of Class 9 preparation. The Test: Protective Tissues In Animals questions and answers have been prepared according to the Class 9 exam syllabus.The Test: Protective Tissues In Animals MCQs are made for Class 9 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Protective Tissues In Animals below.
Solutions of Test: Protective Tissues In Animals questions in English are available as part of our course for Class 9 & Test: Protective Tissues In Animals solutions in Hindi for Class 9 course. Download more important topics, notes, lectures and mock test series for Class 9 Exam by signing up for free. Attempt Test: Protective Tissues In Animals | 5 questions in 5 minutes | Mock test for Class 9 preparation | Free important questions MCQ to study for Class 9 Exam | Download free PDF with solutions
Test: Protective Tissues In Animals - Question 1

The function of secretion is shown by both, ________ and _________ epithelium.

Detailed Solution for Test: Protective Tissues In Animals - Question 1
Columnar epithelium is located in thyroid vesicles , gonads eg. ovaries and testes and sweat and salivary gland thus secreting thyroxine , estrogen , sweat and saliva so performing secretion and glandular epithelium is located in intestine secreting mucous it is the modified form of columnar epithelium thus secreting some of its products also so both perform secretion.
Test: Protective Tissues In Animals - Question 2

In goitre, the thyroid gland enlarges and results in swelling in the throat region. Which epithelial tissue is involved in this condition?

Detailed Solution for Test: Protective Tissues In Animals - Question 2
Epithelial Tissue Involved in Goitre:
The epithelial tissue involved in goitre is the Glandular epithelium. Here's why:
- Goitre is characterized by the enlargement of the thyroid gland, which is a part of the endocrine system.
- The thyroid gland is composed of follicles that produce, store, and release thyroid hormones.
- The cells lining the follicles are composed of glandular epithelium.
- Glandular epithelium is specialized for secretion and is found in glands throughout the body.
- In the thyroid gland, the glandular epithelial cells produce and secrete thyroid hormones, primarily thyroxine (T4) and triiodothyronine (T3).
- When the thyroid gland is not able to produce enough thyroid hormones, it can lead to an increase in the secretion of thyroid-stimulating hormone (TSH) by the pituitary gland.
- This excess TSH stimulates the growth and enlargement of the thyroid gland, resulting in goitre.
- The swelling in the throat region is caused by the increased size of the glandular epithelial cells and the increased blood flow to the enlarged thyroid gland.
In conclusion, the glandular epithelium is involved in goitre as it is responsible for the production and secretion of thyroid hormones, which can lead to the enlargement of the thyroid gland when there is an imbalance in hormone levels.
1 Crore+ students have signed up on EduRev. Have you? Download the App
Test: Protective Tissues In Animals - Question 3

Name the region where epithelial tissue is not found.

Detailed Solution for Test: Protective Tissues In Animals - Question 3
Name the region where epithelial tissue is not found.
Epithelial tissue is a type of tissue that covers the surfaces of organs, lines body cavities, and forms glands. It is found throughout the body and serves various functions depending on its location. However, there are certain regions where epithelial tissue is not found. Let's explore these regions:
1. Lung alveoli:
- Lung alveoli are tiny air sacs located in the lungs.
- They are responsible for gas exchange, allowing oxygen to enter the bloodstream and carbon dioxide to be removed.
- The walls of lung alveoli are composed of simple squamous epithelium, which is a type of epithelial tissue.
2. Skin:
- The skin is the largest organ of the body and serves as a protective barrier against the external environment.
- It is composed of multiple layers, including the epidermis and dermis.
- The epidermis, the outermost layer of the skin, is primarily made up of stratified squamous epithelium.
3. Lining of mouth:
- The lining of the mouth is composed of oral mucosa, which is a type of epithelial tissue.
- It covers the inner surfaces of the mouth, including the cheeks, lips, tongue, and gums.
4. Heart muscle:
- The heart is a muscular organ responsible for pumping blood throughout the body.
- The walls of the heart are composed of cardiac muscle tissue, not epithelial tissue.
Therefore, epithelial tissue can be found in the lung alveoli, skin, and lining of the mouth, but not in the heart muscle.
Test: Protective Tissues In Animals - Question 4

The skin of frogs is smooth and moist, while that of lizards is dry and scaly. However, in both the cases, the skin is made up of same epithelial tissue. Which is this tissue?

Detailed Solution for Test: Protective Tissues In Animals - Question 4
Squamous Epithelium – These are thin, flat cells that are closely packed. The squamous epithelial cells line the cavities of the mouth, oesophagus, alveoli, and blood vessels. This tissue gives protection against mechanical injury and also blocks the entry of germs. If the squamous epithelium is arranged in many layers, it is a compound squamous tissue called the stratified squamous epithelium. We find these kinds of tissues in the skin and also the lining of the oesophagus.
Test: Protective Tissues In Animals - Question 5

Which of the following is not a characteristic of epithelial tissue?

Detailed Solution for Test: Protective Tissues In Animals - Question 5
It is so because it is present in epithelial tissue just under the epithelium and if it would not be present then there would be no one to anchor down the epithelium and also there would be absence of mechanical barrier.
Information about Test: Protective Tissues In Animals Page
In this test you can find the Exam questions for Test: Protective Tissues In Animals solved & explained in the simplest way possible. Besides giving Questions and answers for Test: Protective Tissues In Animals, EduRev gives you an ample number of Online tests for practice

Top Courses for Class 9

Download as PDF

Top Courses for Class 9