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Match the following.

The small pores which are responsible for the exchange of oxygen and carbon dioxide in plants are mainly present on the ___ of plants.

Label the parts of a neuron in the figure

Consider the diagram below which represents Photosynthetic reactions. Choose the option that correctly matches the names to the numbers (i), (ii), (iii). Also, the option must match with the involvement of chlorophyll i.e.: a-Light reaction or b-Calvin-Benson Cycle.

Diaphragm is present above the:

The presence of striations is a feature of

The carbohydrate synthesized in the leaves are transported through sieve tubes most commonly in the form of________.

Which of the following is not a function of Golgi apparatus?

We should all be free of

Answer the following: [3 MARKS]

(1) When does a person need artificial respiration?
(2) From where can the person get supply of oxygen for artificial respiration?
(3) Does the person need to be kept on artificial respiration temporarily or permanently?

Main difference between inherited and infectious diseases is?

Why is excretion required? Name the various parts of the excretory system of humans. Also, write the functions.

George de Mestral was a Swiss Engineer who invented the Velcro after observing a Burdock Burr which is a type of seed (See image below). What is the mode of dispersal of this seed?

• In the year 10,000 BCE, the estimated population was 50 million.


• In 1700 CE, the population was only about 1 billion. Then it started accelerating very fast.


• In 2000 CE, it had crossed 6 billion.


• By 2050 CE, it is expected to cross 9 billion. What do you think has caused the huge increase?

Assertion: Length of the small intestine in cows is longer than in tigers.

Reason: Cellulose digestion takes lesser time than flesh.

Identify the given plant.

Statement 1: Poultry is India's most efficient converter of low, fibre food stuff into highly nutritious animal protein food.

Statement 2: Poultry birds are fed with food having high protein content.

Statement 3:Poultry birds give us chicken and eggs which are protein rich foods.

Find the correct match from the following:
$\begin{array}{cc}\text{Organism}& \text{Method of reproduction}\\ \text{Sponge}& \text{P}\\ \text{Planaria}& \text{Q}\\ \text{Hydra}& \text{R}\end{array}$

Choose the option that depicts the process of spinning correctly.

In the process of digestion, the enzymes at location 'X' and location 'Y' are such that 'X' converts maltose into glucose and 'Y' converts peptones and peptides to amino acids. Identify X and Y.

________ is an adulterant that is most likely to be found in peas, capsicum and lettuce.

Planting trees along roadside, wasteland and mountain slopes

Which type of blood cells fight against the germs or foreign materials that enter our body?

Palaemon (prawn) has an open circulatory system and jointed legs. To which phylum does it belong?

The mucous membrane inside the ileum of the small intestine is folded forming finger-like projections called

Where is bile produced? Which component of food does it help to digest?

Question 39

Draw and identify different elements of phloem.

Grass eating animals or ruminants have developed the habit of rumination. It is for reasons: one is 'cellulose present in the plants takes a long time to digest'. What are the other reasons?

What is difference between a gland and an organ ?

Lightning is a/an ___ on a huge scale.

Identify an appropriate option.

Write short notes on villus. [3 MARKS]

Match the following.

Plant transport system moves energy stores from ___ and raw materials from ___.

Which of the following is a J shaped sac that lies under the diaphragm on the left of the abdominal cavity?

Question 3

Which tissue makes up the husk of coconut?