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Life Processes

What will happen if platelets were absent in the blood?

Life Processes

Why do veins have thin walls as compared to arteries?

Life Processes

Name the correct substrates for the following enzymes
(a) Trypsin (b) Amylase  (c) Pepsin (d) Lipase

Life Processes

Match the terms in Column (A) with those in Column (B)

Column (A)     Group (B)

(a) Trypsin       (i) Pancreas
(b) Amylase    (ii) Liver
(c) Bile            (iii) Gastric glands
(d) Pepsin       (iv) Saliva

Life Processes

What are the functions of gastric glands present in the wall of the stomach?

Life Processes

Explain the role of mouth in digestion of food.

Life Processes

What is common for cuscuta, ticks and leeches?

Life Processes

Name the energy currency in the living organisms. When and where is it produced?

Life Processes

In each of the following situations what happens to the rate of photosynthesis?
(a) Cloudy days
(b) No rainfall in the area
(c) Good manuring in the area
(d) Stomata get blocked due to dust

Life Processes

Mention the major events during photosynthesis