Life Process

Q.

Question 13
Can we survive only on raw, leafy vegetables/grass? Discuss.

Q.

Identify if each of the following statements are true or false. Mark as T, if they are true and F if they false and select the answer option with the correct answer.

I. Food is essential for all living beings.
II. All plants are autotrophs.
III. Iodine solution is used to test the presence of proteins.
IV. Speech is a life process.
V. Carbon dioxide is a by – product of photosynthesis.

1. I-T, II-F, III-F, IV-F, V-F

2. I-F, II-F, III-T, IV-F, V-T

3. I-F, II-F, III-T, IV-T, V-T

4. I-T, II-T, III-T, IV-F, V-F

Q.

What do all living beings have in common?

1. They all have a similar cellular organization.

2. They all share the same kind of genetic material to varying degrees.

3. They all need and use energy.

4. They all move and grow.

Q.

__is important for breaking down food into nutrients, which the body uses for energy, growth and cell repair.

Q.

__is important for breaking down food into nutrients, which the body uses for energy, growth, and cell repair.

Q.

Which of these are the by-products of photosynthesis and respiration?

1. Water

2. Nitrogen

3. Oxygen

4. Carbon dioxide

Q. What are the upper chambers of human heart called?

1. Ventricles
2. Septum
3. Atria
4. Vene cava

Q. What is digestion? Why do only animals require a digestive system?

Q. What type of molecular transportation require energy?

1. Diffusion
2. Osmosis
3. Passive
4. Active

Q. You might be familiar with the term “Multiple Organ Failure”. What could be the possible reason behind this?

1. Dysfunctionality of one of the organs interrupts the smooth functioning of other organs and they also cease to function.
2. The heart stops pumping blood to the body parts
3. Several organs in the body stop functioning at the same time.
4. Paralysis of lower body.

Q. If our blood was made up of only the cells that fights pathogens, then what would it's colour be?

1. Colourless
2. White
3. Red
4. Yellow

Q.

Which of the following life processes is involved when an athlete sweats after a race?

1. Respiration

2. Excretion

3. Nutrition

4. Growth

Q.

Assertion [A]: Digestion is a life processes.

Reason [R]: Digestion helps in obtaining energy from food.

1. Both statements are true. Statement 2 is the correct explanation of Statement 1.

2. Statement 1 is true. Statement 2 is false.

3. Statement 1 is false. Statement 2 is true.

4. Both statements are true. But Statement 2 is not the correct explanation of Statement 1.

Q.

The major and primary functions of the digestive system is to transfer_____ from the environment into our bodies.

1. Nutrients

2. Electrolytes

3. Water

4. All of the above

Q.

The quality of life will not be affected if there is a dysfunction in one of the life processes while others are still working as usual.

1. True

2. False

Q. The mechanism of urine formation in nephron involves

1. (i)- Glomerular filtration, (ii)- Secretion, (ii)- Reabsorption, (iv)- Excretion
2. (i)- Secretion, (ii)- Reabsorption, (ii)- Glomerular filtration, (iv)- Excretion
3. (i)- Glomerular filtration, (ii)- Reabsorption, (ii)- Excretion, (iv)- Secretion
4. (i)- Glomerular filtration, (ii)- Reabsorption, (ii)- Secretion, (iv)- Excretion

Q. Which of the following activity is not essential for the survival of an individual monkey?

1. Protect itself from predators
2. Excretion
3. Mating
4. Intake of food

Q. Metamorphism in frogs is an example of which life process?

1. Reproduction
2. Growth
3. Nutrition
4. Respiration

Q.

Getting rid of wastes is one of the life processes. What name is given to this process?

1. Excretion

2. Circulation

3. Nutrition

4. Digestion

Q.

Synthesis of urea takes place in which of these organs?

1. Liver

2. Lungs

3. Kidney

4. Stomach

Q.

The accessory excretory human organs are:

1. Skin, lungs and liver

2. Skin, lungs and heart

3. Skin and liver

4. Skin and heart

Q.

The tube that carries urine from kidneys to urinary bladder is ______.

1. urethra

2. nephron

3. renal tubule

4. ureter

Q.

'x' transports urine from kidney to the urinary bladder and 'y' transports urine from the urinary bladder to outside.

1. x - renal vein, y - renal artery

2. x - urethra, y - ureter

3. x - renal artery, y - renal vein

4. x - ureter, y - urethra

Q.

The major and primary functions of the digestive system is to transfer _____ from the environment into our bodies.

1. Nutrients

2. Electrolytes

3. Water

4. All of the above

Q.

Water evaporates through tiny structures present on the surface of leaves. These structures are known as:

1. petiole

2. stalk

3. stomata

4. tendrils

Q.

Which of the following are the characteristics of living organisms?

1. Growth

2. Reproduction

3. Survival

4. Homeostasis