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Published on: 19/10/2019
Transportation in Plants Circulation in Animals
Download Tamil Nadu 10th Standard Science question papers, model tests, one-mark questions, important questions, and public exam papers in PDF format. Free study materials and answer keys for TN State Board students.
Questions + Answers key
Take MCQ Science Test1.
2.
The _________are the largest of leucocytes.
neutrophil
monocyte
basophil
lymphocyte·
3.
Which one of the following shows correct composition of blood?
Plasma - Blood + Lymphocyte
Serum - Blood + Fibrinogen
Lymph - Plasma + RBC + WBC
Blood - Plasma + RBC + WBC + Platelets
4.
The wall of human heart is made of
Endocardium
Epicardium
Myocardium
All of the above
5.
Water which is absorbed by roots is transported to aerial parts of the plant through
Cortex
Epidermis
Phloem
Xylem
6.
The __________ supplies nutrition and oxygen to those parts where blood cannot reach
7.
Similar to mammals,_________ also have four chambered heart.
8.
The normal human heartbeat rate is about ____________ time per minute.
9.
Normal blood pressure is __________.
10.
__________ involves evaporative loss of water from aerial parts.
11.
Basophils
12.
Neutrophils
13.
O blood group
14.
AB blood group
15.
Define Pulse
16.
What is the cardiac cycle?
17.
Name the heart valve associated with the major arteries leaving the ventricles.
18.
Which kind of cells are found in the lymph?
19.
Why is the colour of the blood red?
20.
Name two layered protective covering of human heart.
21.
List the difference between RBC and WBC.
22.
Differentiate between systemic circulation and pulmonary circulation.
23.
What is the importance of valves in the heart?
24.
What is cohesion?
25.
What is Transpiration? Give the importance of transpiration.
1.
(c)
2.
(b)
monocyte
3.
(d)
Blood - Plasma + RBC + WBC + Platelets
4.
(d)
All of the above
5.
(d)
Xylem
6.
( )
lymph
7.
( )
Aves
8.
( )
72 - 75
9.
( )
120mm / 80mm Hg
10.
( )
Transpiration
11.
0.5 % - 1.0%
12.
Inflammation
13.
Absence of antigen
14.
Absence of antibody
15.
(i) When the heart beats, the blood is forced into the arteries. The expansion of the artery every time the blood is forced into it is called pulse.
(ii) Normal pulse rate ranges from 70 - 90 / min
16.
(i) The sequence of events occurring from the beginning to the completion of one heart beat is called cardiac cycle.
(ii) During cardiac cycle blood flows through the chambers of the heart in a specific direction.
17.
Semilunar valves associated with the major arteries leaving the ventricles.
18.
Plasma, proteins and blood cells.
19.
RBCs impart red colour to the blood due to the presence of the respiratory pigment hemoglobin.
20.
Pericardium
21.
| S.No |
RBC |
WBC |
|---|---|---|
| i | They are red in colour due to the presence of respiratory pigment hemoglobin. | They are colourless. |
| ii | They are biconcave/disc-shaped. | They are amoeboid in shape. |
| iii | The RBC is not classified into types, all red blood cells are the same. | They are classified into granulocytes and agranulocytes. |
| iv | The mature RBC's lack a nucleus. | They are nucleated. |
| v | They cannot change their shape. | They can change their shape and are capable of amoeboid movement. |
| vi | They are smaller than leucocytes. | They are larger than erythrocytes. |
| vii | They are responsible for the transport of respiratory gases (CO2 and O2). | They help to defend the body against pathogens. |
22.
| Systemic circulation | Pulmonary circulation |
| Systemic circulation moves blood between the heart and the rest of the body. | Pulmonary circulation moves blood between the heart and the lungs. |
| It sends oxygenated blood out to cells and returns deoxygenated blood to the heart. | It transports deoxygenated blood to the lungs to absorb oxygen and release carbon dioxide. The oxygenated blood then flows back to the heart. |
23.
Valves are the muscular flaps that regulate the flow of blood in a single direction and prevent back flow of blood.
24.
The force of attraction between molecules of water is called cohesion.
25.
Definition: Transpiration is the evaporation of water from the aerial parts of the plant especially through stomata in the leaves.
Importance of Transpiration:
(i) Creates transpirational pull for transport of water.
(ii) Supplies water for photosynthesis.
(iii) Transports minerals from soil to all parts of the plant.
(iv) Cools the surface of the leaves by evaporation.
(v) Keeps the cells turgid; hence, maintains their shape.
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Tamilnadu Stateboard 10th Standard Subjects
Tamilnadu Stateboard Standards
