20 important questions with answers from the chapter life processes.Please answer fast.(I will mark it as brainliest if you do)
Answers
1) what is nutrition
2) write 3 prosses that happens during photosynthesis
3) describe digestive system of amoeba
4) describe the digestive system of human being
5) what is respiration
6) describe the respiratory system of human being
7) why red blood cells are red in colour
8) why people say don't sleep under the tree during night
9) what is the work of lymph
10) why transportation is called duble circulation
11) what is life process
12) how many life process are in our body
13) what is excretion
14) what is the work of nephrons
15) write the transportation of trees
please mark me as brainlist answer.
Heya there :)
here are the imp questions from the chapter LIFE PROCESS...
1.What are enzymes? Name any one enzyme of our digestive system and write its function.
2.(i) Write the balanced chemical equation for the process of photosynthesis,
(ii) When do the desert plants take up carbon dioxide and perform photosynthesis ?
3.In single celled organisms diffusion is sufficient to meet all their requirements of food, exchange of gases or removal of wastes but it is not in case of multicellular organisms. Explain the reason for this difference.
4. Draw a diagram of human excretory system and label kidneys, ureters on it.
5.Name the acid presents in the following:
(i) Tomato (ii) Vinegar (iii) Tamarind
6.State the role of the following in human digestive system :
(i) Digestive enzymes (ii) Hydrochloric acid (iii) Villi
7.(a)Explain how does the exchange of gases occur in plants across the surface of stems, roots and leaves.
(b) How are water and minerals transported in plants ?
8. Why do herbivores have longer, small intestine than carnivores ?
9.In mammals and birds why is it necessary to separate oxygenated and de-oxygenated blood ?
10.What would be the consequences of deficiency of hemoglobin in your body?
(a) What is the role of HCl in our stomach ?
(b) What is emulsification of fats ?
(c) Which protein digesting enzyme is present in pancreatic juice ?
11.List in tabular form three differences between arteries and veins.
12.Why do the walls of the trachea not collapse’when there is less air in it?
13.In human alimentary canal, name the site of complete digestion of various components of food. Explain the process of digestion.
(a) Draw a diagram to show open stomatal pore and label on it:
(i) guard cells
(ii) chloroplast
(b) State two functions of stomata.
(c) How do guard cells regulate the opening and closing of stomatal pore?
14.Explain the process of nutrition in Amoeba.
15.Explain the process of breakdown of glucose in a cell (ii) in the absence of oxygen./Breakdown of glucose in various pathways.
(a) List the three events that occur during the process of photosynthesis.
Explain the role of stomata in this process.
(b) Describe an experiment to show that “sunlight is essential for photosynthesis.”
16.(a) Draw the structure of a nephron and label the following on it:
Glomerulus, Bowman’s capsule, Renal artery, Collecting duct.
(b) What happens to glucose that enters the nephron along with filtrate?
17.(a) What is meant by breathing? What happens to the rate of breathing during
vigorous exercise and why?
(b) Define translocation with respect to transport in plants. Why is it essential for plants? Where in plants are the following synthesised?
(i) Sugar (iii) Hormone
18.Describe in brief the function of kidneys, ureters, urinary bladder and urethra.
19.What is‘translocation’in plants?
20. (a) Draw a schematic representation of transport and exchange of oxygen and carbon dioxide during transportation of blood in human beings and label on it:
Lung capillaries, Pulmonary artery to lungs, Aorta to body, Pulmonary veins from lungs.
(b) What is the advantage of separate channels in mammals and birds for oxygenated and deoxygenated blood?
+ ALL THE DIAGRAMS..
hope it helps u!!