Life

Q.

What criteria do we use to decide whether something is alive

Q.

(a) What criteria can be used to decide whether something is alive ?
(b) What is meant by life processes ? Name the basic life processes common to all living organisms which are essential for maintaining life.

Q.

Compare between living and non-living.

Q.

Define stimuli

Q. A group of organs working together to perform a specific function is called an ____.

1. Muscular System
2. Cellular System
3. Organization
4. Organ system

Q.

Question 2
What criteria do we use to decide whether something is alive?

Q. An irreversible, permanent increase in the size of an organ or its part or even of an individual cell is _______.

1. Development

2. Differentiation

3. Maturation

4. Growth

Q.

All cells in a multicellular organism can live independently.

1. True
2. False

Q.

Difference in control and coordination of plants and animals

3 points

Q.

Majority of cells cannot be seen directly with our naked eyes because:

1. organisms are generally unicellular

2. cells are microscopic

3. cells are present only inside the body

4. cells are grouped into tissues

Q.

Using a jute bag for shopping is desirable because

1. jute is natural

2. jute is biodegradable

3. jute bags are stronger

4. All of these

Q.

What is the basic unit of life? Why is it called so?

Q.

Which of the following microbe helps in the production of the beverage coffee

1. The flocs acting on the effluent produces biogas.
2. None of the above.
3. The flocs are active microbes. Once the nutrients are gone, they die and decay, which produces biogas.
4. The secondary sludge left behind after the flocs act on nutrients, produces biogas when acted upon by anaerobic bacteria.

Q. Which of these differentiate living things from non-living things?

1. Movements
2. Size
3. Colour
4. Weight

Q.

Can the fruit that has fallen or detached from the tree can be said to be alive? Give reasons for your answer.

Q. What criteria do we use to decide whether something is alive?

Q. Assertion :Growth is found in multicellular organisms. Reason: Unicellular organisms also grow by division.

1. Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
2. Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
3. Assertion is true Reason is false
4. Reason is True but Assertion is False

Q.

Question 69
Plants have low energy needs as compared to animals. Explain.

Q.

____is produced by the process of anaerobic digestion of organic material by anaerobes.

1. Bio-diesel

2. Bio-alcohol

3. Bio-gas

4. Bio-ethanol

Q. Both living things and nonliving things are made of

1. Cells
2. Molecules
3. Organs
4. Tissues

Q. Assertion :Growth in non-living objects is external as material is accumulated on the surface Reason: Growth in living organisms is internal as biomass is synthesized in the cell

1. Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
2. Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
3. Assertion is true but Reason is False
4. Reason is true but Assertion is False

Q.

For food, shelter and to find a mate to reproduce we need___ .

Q.

(a) What criteria can be used to decide whether something is alive ?
(b) What is meant by life processes ? Name the basic life processes common to all living organisms which are essential for maintaining life.

Q. Phylloclade is found in:

1. Cactus
2. Acacia
3. Opuntia
4. Ruscus

Q. Haemodialysis means

1. A technique used to remove waste products from the blood
2. A method to increase the oxygen carrying capacity of the blood
3. None of these
4. A procedure to isolate defective RBCs

Q.

In the comparison of living things and nonliving things, which of the following statement is wrong?

1. Both are made of molecules

2. Both are collection of many atoms

3. Both respond to stimuli

4. Both have mass and occupy space

Q. Human beings are made up of _______.

1. one cell
2. one sponge
3. more than one cell
4. pieces of jelly

Q. Which of the following is a living thing?

1. Lamp
2. Car
3. Rock
4. Honey bee

Q. If you take the nucleus out of an Amoeba, can you call the nucleus living?

1. Yes
2. No
3. It is living for an hour
4. Impossible to say

Q.

Question 2
What criteria do we use to decide whether something is alive?