pies water transpored through phloem root har 1 ar absorpcion through roots can be increased by keeping de in the shade T under the lan covered with a polythene bag 4. Why is transport of materials necessary in a plant or in an animal plan 12 In Explain 5 what will happen if there are no platelets in the blood? What are stomata? Give two functions of stomata. 7. Does transpiration sene any useful function in the plants? Explain & What are the components of blood? 9 Why is blood needed by all the parts of a body? 10 hat makes the blood look red? Describe the function of the heart. 12. Why is it necessary to excrete waste products? 1 Draw a diagram of the human excretory system and label the various parts. pe 10 Extended Learning - Activities and Projects 1. Find out about blood groups and their importance 2. When a person suffers from chest pain, the doctor immediately takes an ECG. Visit a doctor and get information about ECG. You may even look up an encyclopaedia or the internet.
Answers
Answer:
1 So, transport of materials is necessary to supply the required substances and to remove the waste products.
2.- Platelets are responsible for clotting of blood.
-Stomata are tiny openings or pores that enable gaseous exchange.
- (I) Transpiration is possible through stomata, i.e., excess water loss from the plant. (ii) Absorption of water from the roots, when there is loss of water from the stomata creates an upward pull.
3.-Yes,
-Whole Blood. Whole blood contains red cells, white cells, and platelets (~45% of volume) suspended in blood plasma (~55% of volume). ...
Red Cells. Red blood cells (RBCs), or erythrocytes, give blood its distinctive color. ...
Platelets. ...
Plasma. ...
White Cells & Granulocytes.
4.Blood brings oxygen and nutrients to all the parts of the body so they can keep working.
5.-Human blood is red because hemoglobin, which is carried in the blood and functions to transport oxygen, is iron-rich and red in color.
- Pumping oxygenated blood to the other body parts
6.The waste materials produced during the metabolic activities are toxic to the body and must not be accumulated inside, and therefore it has to be excreted out from the body by the process of excretion.
The blood clots due to the presence of platelets. If there are no platelets in the blood, then after a minute injury or cut, the blood will not clot and continue to flow outside the body and the person might die.