Geetha Iyer Solutions for Exercise 3: ACHIEVER'S SECTION

If we move the spoon(inner surface) slowly away from our face, how does the image change?

Refer to the given figures of bacteria X, Y, and Z and read the statements (i), (ii), (iii), and (iv) regarding them.

(i) Bacterium X can be causal organism of typhoid.

(ii) Bacterium Y can cause a disease which disrupts proper exchange of gases.

(iii) Bacterium Z can convert the lactose sugar of milk into lactic acid.

(iv) Bacterium X can be the causal organism of cholera.

Which of these statements are incorrect?

A copper vessel exposed to moist air for a long time is shown in figure $\mathrm{I}$ and sulphur powder is burnt in oxygen as shown in figure $\mathrm{II}$.

$1, 2, 3 \mathrm{and} 4$ are respectively.

Diabetics who are on rapid-acting insulin are advised not to wait more than 15 minutes to eat after taking an insulin shot. Which of the following best explains this?