Which hormone:
(a) prepares the body for action?
(b) controls the amount of glucose in blood?
(c) gives boys a deep voice?
(d) give girls soft skin?

The table below gives the flavours of ice cream liked by children (boys and girls) of a society. Study the table and answer the following questions: (a) Draw a double bar graph using appropriate scale to represent the above information. (b) Which flavour is liked the most by the boys? (c) How many girls are there in all? (d) How many children like chocolate flavour of ice cream? (e) Find the ratio of children who like strawberry flavour to vanilla flavour of ice cream.

(a) Write the names of five endocrine glands found in the human body. Name the hormones secreted by each gland. (b) How do hormones reach the organs they control? (c) Name the gland which controls the secretion of hormones from the pituitary. (d) How does our body respond when adrenaline is secreted in large amounts into the blood? (e) Name the disease which occurs in adults due to the deficiency of iodine in the diet. what is the main symptom of this disease?

Match the hormones given in column I with their functions given in column II: {:("Hormones","Functions"),((i)"Thyroxine",(a)"Causes breasts to develop in females"),((ii)"Adrenaline",(b)"Causes the male to start producing sperms"),((iii)"Insulin",(c)"Prepares the body for an emergency"),((iv)"Estrogen",(d)"Controls the metabolic rate"),((v)"Tstosterone",(e)"Regulates the amount of sugar in blood"):}

A gland W is located just below the stomach in the human body. The gland W secretes a hormone X. The deficiency of hormone X in the body causes a disease Y in which the blood sugar level of a person rises too much. The person having high blood sugar is called Z. (a) Name (i) gland W, and (ii) hormone X. (b) What is the function of hormone X? (c) Name (i) disease Y, and (ii) person Z. (d) What advice would you like to give to a person who is suffering from disease Y due to faulty life-style?

The gland A is attached to the wind pipe in the human body. The gland A makes and secretes a hormone B which controls the metabolism of carbohydrates, fats and proteins in the body. The non-metal element C is necessary for the formation of hormone B. The deficiency of C in the diet can cause a deficiency of hormone B in the body leading to a disease D in which the neck of a person appears to be swollen. People are advised to use salt e in cooking food so as to avoid disease D. (a) Name (i) gland A, and (ii) hormone B. (b) What is the element C? (c) Name one type of food which can provide sufficient C in the diet of a person. (d) Name (i) disease D, and (ii) salt E.

Which of the following is not true about glucose? (A) It is an aldose (B) It is present in the furanose form only (C) It does not give 2,4 DNP test (D) On heating with HI, it forms n-hexane

Solution A turns universal indicator blue to purple whereas solution B turns universal indicator orange to red. (a). What will be the action of solution A on litmus? (b). What will be action of solution B on litmus? (c) Name any two substances which can give solutions like A. (d). Name any two substances which can give solutions like B. (e). What sort of reaction takes place when solution A reacts with solution B?

Deep-sea fishes adapted to survive in high pressure because they have (A) Adipose tissue under skin (B) Unsaturated fatty acids in their blood (C) Glycerol in their body fluids (D) Unsaturated fatty acids in their membranes