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Published on: 14/08/2019
Respiration in Organisms
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Questions + Answers key
Take MCQ Science Test
1.
Which of the following organism can respire anaerobically?
Amoeba
Yeast
Paramecium
Euglena
2.
Yeasts are used in
wine and beer industry
bakery industry
Both (a) and (b)
None of these
3.
Minimum loss of energy takes place while we are
walking
swimming
running
Sleeping
4.
During the process of exhalation, the ribs move
down and inwards
up and inwards
down and outwards
up and outwards
5.
In cockroaches, air enters the body through
lungs
gills
spiracles
skin
6.
Cockroaches
7.
Leaves
8.
Cell
9.
Earthworm
10.
Yeast
11.
The balance between CO2 and O2 is maintained by the plants.
12.
We take deep breathes after we hold on breath for the one minute.
13.
Living organism respire to get energy from food.
14.
The fishes have lungs for respiration.
15.
During heavy exercise, the breathing rate of a person slows down.
16.
When you feel drowsy, does your breathing rate slowdown?
17.
Explain cellular respiration.
18.
Name the respiratory organs in frogs.
19.
Name the end products of anaerobic respiration in yeast.
20.
What are the end products of aerobic respiration.
21.
Observe the given diagram of human respiratory system. List the organs from (A) to (G).
22.
Distinguish between photosynthesis and respiration.
23.
It is not wise to sleep under a tree during night. Why?
24.
Wind pipe in humans is called_______
25.
Lungs are very..............organ
26.
Breathing rate of a person is not always ______
27.
................is an essential phenomenon for the survival of living organisms
28.
The roots of a plant take up oxygen from the ......... trapped between the............ particles.
29.
Name the breathing organs of cockroach and earthworm?
30.
What is cellular respiration?
31.
Why do all living organisms respire?
32.
What happens when breathed air is passed through lime water?
33.
Name the tiny pores is the leaves through which exchange of gases takes place.
1.
(b)
Yeast
2.
(c)
Both (a) and (b)
3.
(d)
Sleeping
4.
(a)
down and inwards
5.
Spiracles In cockroaches, air for respiration enters through small tubes/holes present on then body called spiracles.
6.
( )
Spiracles
7.
( )
Stomata
8.
( )
Structural and functional unitof body
9.
( )
Skin
10.
( )
Alcohol
11.
(a)
12.
(a)
13.
(a)
14.
(b)
15.
(b)
16.
Yes. When we feel drowsy our breathing rate becomes slow
17.
The process of braeak down of food in the cell with the release of energy is called cellular respiration
18.
Frogs respire through their moist skin as well as through a pair of lungs
19.
The end product formed during anaerobic respiration in yeast are
(i) Ethyl alcohol
(ii) Carbon dioxide
(iii) Energy
20.
During aerobic respiration, carbon dioxide and water are released along with a large amount of energy.
\(glucose\overset { { O }_{ 2 } }{ \longrightarrow } { O }_{ 2 }+water+Energy\)
21.
The human respiratory system have following organs:
A- Ribs
B- Trachea
C- Pharynx
D - Diaphragm
E- Lungs
F- Nasal passage
G- Oral cavity
22.
Difference between photosynthesis and respiration:
| Photosynthesis | Respiration |
| 1. Light energy is converted into chemical energy. | Break down of food takes place with the release of energy |
| 2. Oxygen is given out. | Carbon dioxide is given out. |
| 3. Carbon dioxide is used is this process | Oxygen is used, in the process. |
| 4. Constructive process, sugar is synthesised. | Destructive process,sugar is broken down |
| 5. Takes place only in green plants. | Takesplace in all animals and plants |
23.
During day, plants photosynthesise in the presence of sunlight and uses CO2 produced during respiration. During this process O2 is released as a byproduct and a balance between O2 and CO2 is maintained in the atmosphere. But in the night. plants do not photosynthesise. Plants are unable to use CO2 during night and produces CO2 and takes O2 during respiration. This leads to the increase in the proportion of CO2 in the air.
So, if one sleeps under a tree at night. he will have problems in breathing as the amount of CO2 in the air around will certainly be more than oxygen. Therefore, it is not advisable to sleep under trees during night because the person will suffer from suffocation and feel excess weight on chest.
24.
( )
trachea
25.
( )
delicate
26.
( )
constant
27.
( )
Breathing
28.
( )
air, soil
29.
( )
Breathing organ of cockroach: Tiny openings called spiracles.
Breathing organ of earthworm: moist skin
30.
( )
The process of breakdown of food in the cell with the release of energy is called cellular respiration
31.
( )
All living organisms respire to get energy from the food.
32.
( )
The lime water becomes milky because carbon dioxide changes limewater into milky limestone.
33.
( )
Stomata.
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