Biology Chapter 1 10 Class Q Answer

Question 1

Define gaseous exchange?

Answer 1

the process of taking oxygen in and given out CO2 is called gaseous exchange. It is 2 types Brething, celluar respiration

Question 2

What is glottis?
Answer: 2

Answer 2

Glottis is a narrow opening at the floor of pharynx. Which leads into larynx.The air enters int the larynx through glottis.

Question 3

Define cellular respiration ?
Answer: 3

Answer 3

The process in which the C-H bond of food is broken down into CO2 and H2O by using oxygen by oxidation reduction reaction is called cellular respiration.

Question 4

Waht is stomata?

Answer: 4

Answer 4

Answer: 4
4-133
Thesee are small opeing which are present in the leaves and young stem epidermis.These helps in exchange of gases

Question 5

How many types of bronchitis

Answer 5

Bronchitis are of two type. i. Acute bronchitis ii. Chronic bronchitis.

Question 6

What trachea?

Answer 6

It is called wind pipe . IT IS 12cm long.There are C-shaped cartilaginous ring present in the wall of trachea.The cartilage keep the trachea in position and prevent it from collapsing even there is no air in it.

Question 7

What are the causes of cancer?

Answer 7

i. Smoking ii. Ionizing radiation iii. Viral infection.

Question 8

What is diaphragm.

Answer 8

It is thick muscular, dome shaped strucute present below the lungs. It helps in breathing.

Question 9

What is pneumonia?

Answer 9

It is an infection of lungs. If it effects both lungs is called double pneumonia.

Question 10

What is acute bronchitis?

Answer 10

It usually lasts about two weeks . It has no permanent damage.

Question 11

Define breathing?

Answer 11

They physical movement associated with gaseous exchange is called breathing.

Question 12

What is chronic bronchitis?

Answer 12

It usually lasts about three months to two years and it is develop by bronchi.

Question 13

Why do organisms need energy?

Answer 13

The organisms need energy in the form of ATP for their activities and processes.

Question 14

Different between bronchi and bronchioles.
Answer: 14

Answer 14

Trachea divided into two branches which are called bronthi. Each bronchus further divided in to fine tubes called bronchioles.

Question 15

What are bad effect of smoking?
Answer: 15

Answer 15

Smoking causes cancer in kidney oral Cavity, larynx, breast, bladder. 2. Smoking effect air passage way. iii. Smoking effect circulatory system iv. Smoking cause arteriosclerosis and narrowing the arteries.

Question 16

What structure are responsible for gaseous exchange in leaves and young stems?

Answer 16

Stomata and lenticels

Question 17

What is bronchitis?

Answer 17

It is the inflammation of the bronchi & bronchioles. It result i more secretions of mucous into these tubes. It leads to selling of tubes.

Question 18

What are two phases of breathing.

Answer 18

. Inspiration ii. Expiration

Question 19

What are symptoms of Asthma?

Answer 19

Shortness of breath, Wheezing, Chronic cough, Tightness of chest.

Question 20

Difference between inspiration and expiration

Answer 20

Intake of air from atmosphere into lungs is called inspiration and in expiration impure air is expelled out.