Life Processes Test

Question 1
1 / -0

When air is blown from mouth into a test-tube containing lime water, the lime water turned milky due to the presence of

A
Oxygen

B
Carbon dioxide

C
Nitrogen

D
Water vapour

Question 2
1 / -0

The correct sequence of anaerobic reactions in yeast is

A
Glucose \({\overset{cytoplasm}\longrightarrow}\) Pyruvate \({\overset{mitochondria}\longrightarrow}\) Ethanol + Carbondioxide

B
Glucose \({\overset{cytoplasm}\longrightarrow}\) Pyruvate \({\overset{cytoplasm}\longrightarrow}\) Lactic acid

C
Glucose \({\overset{cytoplasm}\longrightarrow}\) Pyruvate \({\overset{mitochondria}\longrightarrow}\) Lactic acid

D
Glucose \({\overset{cytoplasm}\longrightarrow}\) Pyruvate \({\overset{cytoplasm}\longrightarrow}\) Ethanol + Carbondioxide

Question 3
1 / -0

Which of the following is most appropriate for aerobic respiration?

A
Glucose \(\overset{mitochondria}{\longrightarrow}\) Pyruvate \(\overset{cytoplasm}{\longrightarrow}\)\( CO_2 + H_2O \) + Energy

B
Glucose \(\overset{cytoplasm}{\longrightarrow}\) Pyruvate \(\overset{mitochondria}{\longrightarrow} CO_2 + H_2O \) + Energy

C
Glucose \(\overset{cytoplasm}{\longrightarrow}\) Pyruvate + Energy \(\overset{mitochondria}{\longrightarrow} CO_2 + H_2O \)

D
Glucose \(\overset{cytoplasm}{\longrightarrow}\) Pyruvate + Energy \(\overset{mitochondria}{\longrightarrow} CO_2 + H_2O \) + Energy

Question 4
1 / -0

Which of the following statement(s) is (are) true about respiration?

(i) During inhalation, ribs move inward and diaphragm is raised

(ii) In the alveoli, exchange of gases takes place i.e., oxygen from alveolar air diffuses into blood and carbon dioxide from blood into alveolar air

(iii) Haemoglobin has greater affinity for carbon dioxide than oxygen

(iv) Alveoli increase surface area for exchange of gases

A
(i) and (iv)

B
(ii) and (iii)

C
(i) and (iii)

D
(ii) and (iv)

Question 5
1 / -0

During respiration exchange of gases take place in

A
Trachea and larynx

B
Alveoli of lungs

C
Alveoli and throat

D
Throat and larynx

Question 6
1 / -0

Which of the following statement (s) is (are) true about heart?

(i) Left atrium receives oxygenated blood from different parts of body while right atrium receives deoxygenated blood from lungs

(ii) Left ventricle pumps oxygenated blood to different body parts while right ventricle pumps deoxygenated blood to lungs

(iii) Left atrium transfers oxygenated blood to right ventricle which sends it to different body parts

(iv) Right atrium receives deoxygenated blood from different parts of the body while left ventricle pumps oxygenated blood to different parts of the body

A
(i)

B
(ii)

C
(ii) and (iv)

D
(i) and (iii)

Question 7
1 / -0

What prevents backflow of blood inside the heart during contraction?

A
Valves in heart

B
Thick muscular walls of ventricles

C
Thin walls of atria

D
All of the above

Question 8
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Single circulation i.e., blood flows through the heart only once during one cycle of passage through the body, is exhibited by

A
Labeo, Chameleon, Salamander

B
Hippocampus, Exocoetus, Anabas

C
Hyla, Rana, Draco

D
Whale, Dolphin, Turtle

Question 9
1 / -0

In which of the following vertebrate group/groups, heart does not pump oxygenated blood to different parts of the body?

A
Pisces and amphibians

B
Amphibians and reptiles

C
Amphibians only

D
Pisces only

Submit Test

Life Processes ...

Question 1

Oxygen

Carbon dioxide

Nitrogen

Water vapour

Question 2

Glucose \({\overset{cytoplasm}\longrightarrow}\) Pyruvate \({\overset{mitochondria}\longrightarrow}\) Ethanol + Carbondioxide

Glucose \({\overset{cytoplasm}\longrightarrow}\) Pyruvate \({\overset{cytoplasm}\longrightarrow}\) Lactic acid

Glucose \({\overset{cytoplasm}\longrightarrow}\) Pyruvate \({\overset{mitochondria}\longrightarrow}\) Lactic acid

Glucose \({\overset{cytoplasm}\longrightarrow}\) Pyruvate \({\overset{cytoplasm}\longrightarrow}\) Ethanol + Carbondioxide

Question 3

Glucose \(\overset{mitochondria}{\longrightarrow}\) Pyruvate \(\overset{cytoplasm}{\longrightarrow}\)\( CO_2 + H_2O \) + Energy

Glucose \(\overset{cytoplasm}{\longrightarrow}\) Pyruvate \(\overset{mitochondria}{\longrightarrow} CO_2 + H_2O \) + Energy

Glucose \(\overset{cytoplasm}{\longrightarrow}\) Pyruvate + Energy \(\overset{mitochondria}{\longrightarrow} CO_2 + H_2O \)

Glucose \(\overset{cytoplasm}{\longrightarrow}\) Pyruvate + Energy \(\overset{mitochondria}{\longrightarrow} CO_2 + H_2O \) + Energy

Question 4

(i) and (iv)

(ii) and (iii)

(i) and (iii)

(ii) and (iv)

Question 5

Trachea and larynx

Alveoli of lungs

Alveoli and throat

Throat and larynx

Question 6

(i)

(ii)

(ii) and (iv)

(i) and (iii)

Question 7

Valves in heart

Thick muscular walls of ventricles

Thin walls of atria

All of the above

Question 8

Labeo, Chameleon, Salamander

Hippocampus, Exocoetus, Anabas

Hyla, Rana, Draco

Whale, Dolphin, Turtle

Question 9

Pisces and amphibians

Amphibians and reptiles

Amphibians only

Pisces only

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