Question

Pls give me minimum 7-10 sentence long answers for both the questions.

These Questions are from Viva Start up Science Textbook Lesson no. 9 - Respiration in Organisms.
Std. 7th

I will mark you brainliest your answer is as good as a teacher.

Thanks!!​

Answer 1

Answer:

Explanation:

Question 1:

Describe the different respiratory systems in animals with examples.

ANSWER:

There are different respiratory systems in animals, which include

Skin – In some animals respiration takes place with their moist and slimy skin surface. E.g., leeches and earthworms. Amphibians respire with skin when in water and with lungs when on land. E.g., frogs, newts.

Air holes – In insects, there are air holes or spiracles present on their body, which enable the entry of oxygen rich air and giving out carbon dioxide rich air. E.g., cockroaches

Gills – Many aquatic animals have gills, which are made up of filaments having blood vessels or capillaries. The blood in capillaries helps to absorb oxygen in water, transports in the body and gives out carbon dioxide. E.g., Fish

Lungs – Most mammals respire with lungs, which are sac like spongy organs in the body. E.g. ,monkeys, cats, human beings, etc

Question 2:

Differentiate between breathing and respiration.

ANSWER:

Breathing Respiration

It is a physical process involving inhalation and exhalation. There is no chemical reaction but only exchange of gases. It is a series of chemical reactions causing oxidation  of food and release of energy.

There are no enzymes or catalysts. Enzymes and catalysts are involved.

It occurs outside the cells. It occurs inside the cells.

Energy is not released. Energy is released.

Question3: Differentiate between inhaled an exhaled air.

ANSWER:

Inhaled air Exhaled air

Inhaled air is rich in oxygen, which is taken in. Exhaled air contains carbon dioxide, which is given out.

This is the taken at the beginning of the process of breathing. This is given out at the end of the process of breathing.

Question 4:

Differentiate between aerobic and anaerobic respiration.

ANSWER:

Aerobic respiration  An aerobic respiration

There is slow release of energy. There is sudden release of energy.

Energy is released in a form that can be used by the organism. Energy is released in a form of heat or light.

Energy is stored in the body in the form of (adenosine triphosphate) ATP molecules.  Energy cannot be stored as ATP.