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Select the correct statement from the following regarding the cell membrane.

Question 6
Match the items in Column I with those in Column II:
$\begin{array}{cc}\text{Column I}& \text{Column II}\\ \text{(a) Yeast}& \text{(i) Earthworm}\\ \text{(b) Diaphragm}& \text{(ii) Gills}\\ \text{(c) Skin}& \text{(iii) Alcohol}\\ \text{(d) Leaves}& \text{(iv) Chest cavity}\\ \text{(e) Fish}& \text{(v) Stomata}\\ \text{(f) Frog}& \text{(vi) Lungs and skin}\\ & \text{(vii)Tracheas}\end{array}$

Name the cell that receives and transfers messages.

Question 3 (a)
Tick (√) mark the correct answer in each of the following:
(a) Fat is completely digested in the
(i) stomach (ii) mouth (iii) small intestine (iv) large intestine

Streptomycin is

Choose the correct option that describes the statement regarding the reaction involved in photosynthesis.

Statement 1: There are two reactions: Light and Dark.

Statement 2: Dark reactions occur only during night time.

Statement 3: The second reaction is called the Calvin-Benson Cycle.

Which of the following are asexual modes of reproduction in plants?

I: Fertilisation

II: Vegetative propagation

III: Fragmentation

IV: Spore formation

Unscramble the following and match it with the parts labeled as A, B, C and D.

i. OPHAESOGUS

ii. OMASTCH

iii. ALLSM INTINETES

iv. LARGE INTINETES

Which of the following is an indigestible portion of food in human?

Exchange of gases in insects occur in tubes called

Decapitation results in:

Carbon dioxide moves out of blood and into the alveolus while oxygen moves into the blood from the alveolus. Why does it happen so?

What are saprophytes and their mode of nutrition? [3 MARKS]

Cellulose is a type of

The components of food that are necessary for our survival and growth are called __.

What is the the role of the nucleus in a cell?

When is lymph formed in the tissue spaces?

Which of the following measure(s) can be taken for the proper maintenance of a dairy farm?

Why is transferred of material necessary in a plant or in an animal explain?

Take two beakers and name them A and B. Place some green gram seeds on moist cotton wool in each of the two beakers. Keep beaker A in the refrigerator and beaker B in an ordinary room. What will you observe in this process?

When we cut onion why we get water in our eyes how can we prevent that

What would happen if you remove androecium of a flower?

Who sets the standards for emission norms of automobiles in India?

An extract of papaya leaves is given to ____ patients.

The domestication and rearing of ducks and hens for meat and egg is known as ___.

Name the gaseous raw material(s) essential for the production of starch in plants through photosynthesis.

Name the male hormone which is secreted by testes at the onset of puberty in boys.

What are the common antiallergic medications used by the doctors?

Which of them do not possess lungs as their respiratory organs?

Bile secretion is proportional to the concentration of

Reflex arc is ____.

Oxygen helps in the process of:

Catla and Silver carp are called as __________and used in composite aquaculture.

Which one of the following abiotic components are not needed for the growth of plants?

The main function of the stomata is to let in _______ from the atmosphere for photosynthesis.

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The vacuole act as a __ organelle.

After ingestion, the food passes through a continuous pipe. This food pipe is called _________.

The _____ hold the teeth in their place.

Which of the following trees develop cones?

Question 15

Which type of movement would have been possible if
1. our elbow had a fixed joint.
2. we were to have a ball and socket joint between our neck and head.