By eating rice alone,we can fulfil nutritional requirements of our body.

Various types of transport mechanisms are needed to fulfil the mineral requirements of a plant. Why are they not fulfilled by diffusion alone?

Direction. In the follwing questions, a statement of assertion is followed by a statement of reason. While answering a question, you are required to choose the correct are out of the given four responses and mark it as (A). If both assertion and reason are true and reason is the correct explanation of the assertion, (B) if both assertion and reason are true but reason is not correct explanation of the assertion. (C) if assertion is true, but reason if false, (D) if both assertion and reason are false Assertion : A transformer can be used to increase/ decrease both voltage and the current. Reason : In a transformer, e_p I_p = e_sI_s and accordingly, if we gain in voltage, we lose in current and vice-versa.

These questions consist of two statement each, printed as Assertion and Reason. While answering these questions, you are required to choose any one of the following four responses. A. If both Assertion and Reason are true and Reason is a correct explanation of the Assertion. B. If both Assertion and Reason are true but Reason is not a correct explanation of the Assertion. C. If Assertion is true but Reason is false. D. If both Assertion and Reason are false. Assertion: Our body contains separate T-cells for every antigen the body encounters. Reason: Each T-cell recognizes a specific antigen.

Can we shield a body from gravitational effects?

Can we distinguish between the nternal energy of a body acquired by heat transfer or work done by external agent?

Consider the following four statements (A-D) and select the option which includes all the correct ones only: Single cell Spirullina can produce large quantities of food rich in proteins, minerlas, vitamins, etc. Body weightwise, the micro-organism Methylophilus methylotrophus may be able to produce several time more proteins than the cows per day Common button mushrooms are a very rich source of vitamin-C A rice variety has been developed which is very rich in calcium.