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Olympiad Test: Respiration in Organisms - CTET & State TET MCQ


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20 Questions MCQ Test NCERT Textbooks (Class 6 to Class 12) - Olympiad Test: Respiration in Organisms

Olympiad Test: Respiration in Organisms for CTET & State TET 2024 is part of NCERT Textbooks (Class 6 to Class 12) preparation. The Olympiad Test: Respiration in Organisms questions and answers have been prepared according to the CTET & State TET exam syllabus.The Olympiad Test: Respiration in Organisms MCQs are made for CTET & State TET 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Olympiad Test: Respiration in Organisms below.
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Olympiad Test: Respiration in Organisms - Question 1

In plants, exchange of gases takes place through

Detailed Solution for Olympiad Test: Respiration in Organisms - Question 1

In plants, exchange of gases takes place through stomata which is present of leaf surface in form of small pores.

Olympiad Test: Respiration in Organisms - Question 2

Oxidation of food inside cell takes place in

Detailed Solution for Olympiad Test: Respiration in Organisms - Question 2

Oxidation of food inside the cell takes place in mitochondria in which energy is released in form of ATP.

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Olympiad Test: Respiration in Organisms - Question 3

Haemoglobin is present in

Detailed Solution for Olympiad Test: Respiration in Organisms - Question 3

Haemoglobin is present in red blood cells that give red colour to blood and carry oxygen.

Olympiad Test: Respiration in Organisms - Question 4

Instant source of energy is

Detailed Solution for Olympiad Test: Respiration in Organisms - Question 4

Glucose is called as instant source of energy because glucose neednot be digested and directly get oxidised to give energy.

Olympiad Test: Respiration in Organisms - Question 5

 Chest cavity is surrounded by

Detailed Solution for Olympiad Test: Respiration in Organisms - Question 5

The thoracic cavity is surrounded by a bony skeleton, with 12 ribs on each side originating from their respective thoracic vertebrae posteriorly and extending anteriorly. The upper seven ribs are connected directly to the sternum via their respective costal cartilages, whereas the 8th to 10th ribs are connected to the sternum via a fused common costal cartilage and the lower two ribs remain free floating and unconnected with the sternum. This skeletal structure provides optimal protection to the intrathoracic organs against all but the most significant trauma.

Olympiad Test: Respiration in Organisms - Question 6

Haemoglobin carries oxygen molecules as

Detailed Solution for Olympiad Test: Respiration in Organisms - Question 6

Haemoglobin carries oxygen molecules as oxyhaemoglobin. Each molecule of haemoglobin combine with four atoms of oxygen.

Olympiad Test: Respiration in Organisms - Question 7

Which of the following organism breathe through skin?

Detailed Solution for Olympiad Test: Respiration in Organisms - Question 7

Earthworm breathes through skin. Earthworm is found in moist soil to keep skin soft and moist.

Olympiad Test: Respiration in Organisms - Question 8

Muscular floor of the chest cavity is called

Detailed Solution for Olympiad Test: Respiration in Organisms - Question 8

The muscular floor of chest cavity is called 'diaphragm'.

Diaphragm is the muscular structure, located throughout the bottom of the thoracic cavity.

It separates the abdominal cavity from the thoracic cavity which contains the heart and the lungs.

The diaphragm in our body is symmetrical, where the right half is a little higher than the left half.

Olympiad Test: Respiration in Organisms - Question 9

Voice box is present in

Detailed Solution for Olympiad Test: Respiration in Organisms - Question 9

Voice box is responsible for producing sound in human beings. It is present in larynx.

Olympiad Test: Respiration in Organisms - Question 10

Alcohol is obtained by anaerobic fermentation of

Detailed Solution for Olympiad Test: Respiration in Organisms - Question 10

Alcohol is obtained by anaerobic fermentation of Sugar in which incomplete oxidation of food takes place to release carbon dioxide and alcohol.

Olympiad Test: Respiration in Organisms - Question 11

Diaphragm present in mammals is

Detailed Solution for Olympiad Test: Respiration in Organisms - Question 11

The muscular partition between thoracic cavity and abdominal cavity is called the diaphragm, which is known as the primary inspiratory muscle that accounts for greater than 50% of tidal volume. It is required for quiet breathing. In addition to this, the muscle is shaped like a dome and is located in the inner ribs.

Olympiad Test: Respiration in Organisms - Question 12

The minute pores present on the surface of leaves are called

Detailed Solution for Olympiad Test: Respiration in Organisms - Question 12

The minute pores present on the surface of leaves are called stomata. Exchange of gases takes place through stomata.

Olympiad Test: Respiration in Organisms - Question 13

The chemical used to test the carbon dioxide gas in exhaled air is

Detailed Solution for Olympiad Test: Respiration in Organisms - Question 13

Lime water is used to test the carbon dioxide gas in inhaled air because lime water turns milky in presence of carbon dioxide.

Olympiad Test: Respiration in Organisms - Question 14

Small thin walled balloon like structure that help in exchange of gases are

Detailed Solution for Olympiad Test: Respiration in Organisms - Question 14

Small thin walled balloon like structure that help in exchange of gasses are called alveoli. Lung is made of large number of alveoli.

Olympiad Test: Respiration in Organisms - Question 15

Air tubes in insect is called

Detailed Solution for Olympiad Test: Respiration in Organisms - Question 15

The air tube in insect is called tracheae. Insects respire through trachea.

Olympiad Test: Respiration in Organisms - Question 16

Which of the following is considered as biological fuel?

Detailed Solution for Olympiad Test: Respiration in Organisms - Question 16

Glucose is considered as biological fuel as all animals obtain energy by oxidation of glucose.

Olympiad Test: Respiration in Organisms - Question 17

Snakes breathe through

Detailed Solution for Olympiad Test: Respiration in Organisms - Question 17

Snakes breathe through lungs as snakes are terrestrial animal.

Olympiad Test: Respiration in Organisms - Question 18

Which of the following animal can breathe through skin as well through lungs?

Detailed Solution for Olympiad Test: Respiration in Organisms - Question 18

Frogs breathe through their skin as well as their lungs for the following reasons:

-It is an amphibious animal that can live both in water and land.

-On land, lungs play a very important role in the respiration process by inhaling oxygen and exhaling carbon dioxide

-When frogs are inside the water, they breathe through the skin.

Olympiad Test: Respiration in Organisms - Question 19

Stomata are surrounded by

Detailed Solution for Olympiad Test: Respiration in Organisms - Question 19

Stomata are surrounded by a pair of guard cell that control the opening and closing of stomata.

Olympiad Test: Respiration in Organisms - Question 20

On an average, adult human being during rest breaths ___________ times in a minute.

Detailed Solution for Olympiad Test: Respiration in Organisms - Question 20

On an average, adult human being during rest breaths 15-18 times a minute. Which increase during exercise and running.

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