Explore topic-wise InterviewSolutions in .

Which structure is responsible for the movement and capture of food in amoeba?

Oxides of nitrogen and sulphur cause ______ rain when reacted with water vapour present in atmosphere.

Which of the following organism is not triploblastic

After a flower is fertilised, which part develops into the seed?

Question 17

'Water does not provide nutrients, yet it is an important component of food.' Explain.

The pores in the leaves are surrounded by what kind of cells?

A smooth silk thread used to clean teeth is known as __________ .

Choose the odd pair out with respect to their effect on health of an individual.

If the skin of earthworm becomes dry, it dies due to:

Question 20
Fill in the blanks in the paragraph given below.
Weather of a place is the day to day conditions of the (a) ___ with respect to (b) ___, (c) ____, (d) ___, (e) ___ at that place, while climate is the (f) ____Weather pattern taken over many years.

Which of the following are functions of stomata?

What are fats? Give an example of a fatty food. [2 MARKS]

Match the following columns.



$\begin{array}{cccc}& \text{Column I}& & \text{Column II}\\ \text{A.}& \text{Duodenum}& 1& \text{A cartilaginous flap}\\ \text{B.}& \text{Epiglottis}& 2& \text{Small blind sac}\\ \text{C.}& \text{Glottis}& 3& \text{C shaped structure}\\ & & & \text{emerging from the stomach}\\ \text{D.}& \text{Caecum}& 4& \text{Opening of wind pipe}\end{array}$

The major source(s) of emissions of $S{O}_2$ is/are

Which of the following food is/are responsible for an allergic reaction?

Which diseases are caused by artificial food colours ?

Poultry farming includes the rearing of which of the following animals?

Mothers' antibodies may reach the foetus through the placenta. To what type of immunity does this belongs to?

Oxygen is present in air as well as in water. Then why do fishes die when taken out of water?

Read statement a-d. Which two of them have mistakes?
(a) First transgenic buffalo, Rosie produced milk which was human alpha lactalbumin enriched.
(b) Restriction enzymes are used in isolation of DNA from other macromolecules.
(c) Downstream processing is one of the steps of r-DNA technology.
(d) Disarmed pathogen vectors are also used in transfer of r-DNA into the host.

Question 2

Why is the plasma membrane called a selectively permeable membrane?

Browsing through Mr. Fox's old scientific notes, Bruce Wayne encounters a secret temperature scale, which Mr. Fox called Z, in order to keep the Batmobile's technology a secret. On that scale, the freezing and the boiling points of water were recorded to be -7⁰Z and 78⁰Z, respectively. The records instruct to maintain the coolant temperature at -24⁰Z for top speed. Mr. Wayne, naturally comfortable with the Fahrenheit scale due to his American upbringing, needs to calculate the coolant temperature in ⁰F. Help him choose the correct value.

Choose the option that gives the major excretory product of the organism mentioned. (Eg: Humans – Urea).

Which of the following does not occur during breathing ?

(a) Brings the air to body temperature

(b) Warms up the air

(c) Diffusion of gases

(d) Cleans up the air

What is the difference between the oxygenic and inoxygenic photosynthesis?

What parts of a plant depend on the stem for support?

During Photosynthesis chlorophyll containing cells use carbon dioxide and water to produce:

Q15. Consider the following statements about Measles-Rubella (MR) vaccination.

1. Measles and Rubella are highly contagious viral diseases that are spread by contact with an infected person through coughing and sneezing.

2. One-third of all measles-related deaths worldwide occur in India.

Which of the above statements are correct?

____ are called the food factories of the plants.

Are all the parts of plants edible?

Explain fertilisation