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Olympiad Test: Reaching The Age Of Adolescence


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20 Questions MCQ Test Science Class 8 | Olympiad Test: Reaching The Age Of Adolescence

Olympiad Test: Reaching The Age Of Adolescence for Class 8 2022 is part of Science Class 8 preparation. The Olympiad Test: Reaching The Age Of Adolescence questions and answers have been prepared according to the Class 8 exam syllabus.The Olympiad Test: Reaching The Age Of Adolescence MCQs are made for Class 8 2022 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Olympiad Test: Reaching The Age Of Adolescence below.
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Olympiad Test: Reaching The Age Of Adolescence - Question 1

Larynx is called

Detailed Solution for Olympiad Test: Reaching The Age Of Adolescence - Question 1 The larynx  commonly called the voice box, is an organ in the top of the neck of tetrapods involved in breathing, producing sound, and protecting the trachea against food aspiration. It becomes a different sound based on the position of the tongue, lips, mouth, and pharynx. When swallowing, the backward motion of the tongue forces part of the larynx called the epiglottis to cover up the opening to the larynx, also called the laryngeal opening.
Olympiad Test: Reaching The Age Of Adolescence - Question 2

The egg is

Olympiad Test: Reaching The Age Of Adolescence - Question 3

Thyroxine is produced by

Olympiad Test: Reaching The Age Of Adolescence - Question 4

There are _____ pairs of chromosomes in human cell.

Olympiad Test: Reaching The Age Of Adolescence - Question 5

Initially girls grow _____ than boys.

Olympiad Test: Reaching The Age Of Adolescence - Question 6

The period of maturity of reproductive organs is called

Olympiad Test: Reaching The Age Of Adolescence - Question 7

Fertilisation is

Olympiad Test: Reaching The Age Of Adolescence - Question 8

Puberty age in females is

Detailed Solution for Olympiad Test: Reaching The Age Of Adolescence - Question 8

The correct answer is A as Puberty age in females is 10 to 12 years

Olympiad Test: Reaching The Age Of Adolescence - Question 9

The stoppage of menstruation is called

Olympiad Test: Reaching The Age Of Adolescence - Question 10

The male hormone is

Detailed Solution for Olympiad Test: Reaching The Age Of Adolescence - Question 10

The correct answer is C as the male hormone is Testosterone which  is the primary sex hormone and anabolic steroid in males. In male humans, testosterone plays a key role in the development of male reproductive tissues.

Olympiad Test: Reaching The Age Of Adolescence - Question 11

 Stomach is called voice box.

Olympiad Test: Reaching The Age Of Adolescence - Question 12

Boys have enlarged and well developed Adam’s apple.

Olympiad Test: Reaching The Age Of Adolescence - Question 13

The chemicals secreted by endocrine glands are called enzymes.

Olympiad Test: Reaching The Age Of Adolescence - Question 14

Insulin is the hormone which is produced by pituitary gland. 

Detailed Solution for Olympiad Test: Reaching The Age Of Adolescence - Question 14

The most important harmone that the pancreas produces is insulin. Insulin is released by the beta cells in the islets of Langerhans in response to food.
So, the given statement is false.

Olympiad Test: Reaching The Age Of Adolescence - Question 15

There are 23 pairs of chromosomes in the nuclei of human cell. 

Olympiad Test: Reaching The Age Of Adolescence - Question 16

Diabetes is caused by less secretion of insulin by pancreas.

Olympiad Test: Reaching The Age Of Adolescence - Question 17

Estrogen is male hormone.

Olympiad Test: Reaching The Age Of Adolescence - Question 18

The puberty age in females is 14 to 16 years.

Detailed Solution for Olympiad Test: Reaching The Age Of Adolescence - Question 18

Puberty usually occurs in girls between the ages of 10-14  , while in boys it generally occurs later, between the ages of 12-16.

Olympiad Test: Reaching The Age Of Adolescence - Question 19

Some sperms have X type and some have Y type chromosomes.

Olympiad Test: Reaching The Age Of Adolescence - Question 20

Out of 23 pairs of chromosomes only two pairs are called sex chromosomes.

Detailed Solution for Olympiad Test: Reaching The Age Of Adolescence - Question 20 False B'cuz...Only 1 pair out of 23 pairs chromosomes is Sex Chromisomes.
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