Characteristics of Living Organisms

Q. Match the organisms given in column I with the processes given in column II :

Column I	Column II
1. Leech	a. Holozoic nutrition
2. Amoeba	b. Autotrophic nutrition
3. Mushroom	c. Parasitic nutrition
4. Green plant	d. Saprophytic nutrition

1. 1 - d, 2 - c, 3 - b, 4 - a
2. 1 - c, 2 - a, 3 - d, 4 - b
3. 1 - a, 2 - c, 3 - b, 4 - d
4. 1 - d, 2 - b, 3 - a, 4 - c

Q.

The process of getting rid of waste produced during life processes is known as ___________.

1. Excretion

2. Respiration

3. Transpiration

4. Photosynthesis

Q. Arrange the following steps of inspiration in the correct order.

1. Volume increases
2. Air moves in
3. Pressure reduces
4. Diaphragm down

Q. Breathing is a process, while respiration is a process.

1. biochemical
2. electrochemical
3. physical
4. reversible

Q. Here is the diagram of an apparatus used to study a particular phenomenon in plants:
What is the use of the reservoir?

Q. The organisms A, B and C can obtain their food in three different ways. Organism A derives its food from the body of another living organism which is called its D, without killing it. The organism B takes in the solid food by the process of ingestion, digests a part of this food and throws out undigested food in the process called E. The organism C obtains its food from dead and decaying plants.

e) What is the general name of three modes of nutrition exhibited by organisms A, B and C ?

Q.

Autotrophs are the organisms which ……………………

1. cannot prepare their own food.

2. can prepare their own food.

3. have xylem and phloem tissues in them.

4. both B and C.

Q. Which of the following is the correct statement ?

1. heterotrophs utilize solar energy for photosynthesis
2. heterotrophs synthesise their own food
3. heterotrophs do not synthesise their own food
4. heterotrophs are capable of converting carbon dioxide and water into carbohydrates

Q. Which of the following is the correct statement ?

1. Heterotrophs do not synthesise their own food
2. Heterotrophs utilize solar energy for photosynthesis
3. Heterotrophs are capable of converting carbon dioxide and water into carbohydrates
4. Heterotrophs synthesise their own food

Q.

the change in an organism resulting due to stimulus

Q. The internal energy (cellular energy) reserve in autotrophs is :

1. starch
2. fatty acids
3. glycogen
4. proteins