Important MCQs for Class 10 Science Chapter 6 Life Processes- Download Free PDF

CBSE The Life Process class 10th MCQs Biology chapter 6 will help students prepare for the board examination. MCQs from the life process are very important for the CBSE board examination. The life process class 10th biology chapter 6 is divided into four sub-chapters. The chapters include Nutrition, respiration, transportation and Excretion. CBSE class 10 sample papers are also very important and help the students understand the life process chapter in a comprehensive manner. However, this biology chapter helps students to prepare MCQs and helps them understand how Multiple-type questions are framed in the class 10 board examination. These Multiple-choice questions help students prepare well for upcoming examinations.

The student's of class 10 should prepare chapter 6 life process to understand the core concepts of life process. The life process chapter covers important funtions of human body and plants. The life process in biology Includes nutrition, types of nutrition, working of the alimentation canal in human beings. Breathing, respiration and (ATP) the energy currency of the cell (Mitochondria). The working of circulatory system in various organisms. The double circulation of blood in human heart. The working of blood pressure in human body. The excretion system in human beings covers – working of nephron, the hemodialysis, and excretion in plants. Moreover, the Biology chapter 6 life process covers important MCQs that are essential for class 10 the board examination.

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Most Important 20 MCQs from Life Process for CBSE Class 10

1. Which enzyme is the first to mix with food during digestion?

(a) Pepsin

(b) Amylase

(c) Trypsin

(d) Lipase

Ans: Amylase

2. The opening and closing of stomata depend on:

(a) Temperature

(b) Oxygen availability

(c) Carbon dioxide concentration

(d) Water content in guard cells

Ans: Water content in guard cells

3. Which organelle is responsible for energy production in cells?

(a) Ribosome

(b) Mitochondria

(c) Plastid

(d) Nucleus

Ans: Mitochondria

4. What is the primary energy molecule used by cells?

(a) ADP

(b) ATP

(c) Glucose

(d) NADPH

Ans: ATP

5. Which gas increases in the blood after tissues release it?

(a) Oxygen

(b) Carbon dioxide

(c) Water vapor

(d) Nitrogen

Ans: Carbon dioxide

6. Autotrophs store their energy reserves in the form of:

(a) Glycogen

(b) Starch

(c) Fatty acids

(d) Proteins

Ans: Starch

7. In the absence of oxygen, pyruvic acid is converted into lactic acid in the:

(a) Cytoplasm

(b) Chloroplast

(c) Nucleus

(d) Mitochondria

Ans: Cytoplasm

8. What prevents the backflow of blood in the heart during contraction?

(a) Heart valves

(b) Thick walls of ventricles

(c) Thin walls of atria

(d) Blood vessels

Ans: Heart valves

9. Which enzyme becomes active only in an acidic environment?

(a) Trypsin

(b) Pepsin

(c) Amylase

(d) Lipase

Ans: Pepsin

10. An organism that digests food externally and absorbs nutrients is:

(a) Cuscuta (a parasitic plant)

(b) Rhizopus (a fungus)

(c) Tapeworm (an animal parasite)

(d) Rhizobium (a bacterium)

Ans: Rhizopus

11. Which fluid in the human body circulates besides blood?

(a) Plasma

(b) Lymph

(c) RBCs

(d) Platelets

Ans: Lymph

12. What pigment helps in oxygen transport in humans?

(a) Chlorophyll

(b) Haemoglobin

(c) Mitochondria

(d) Carotene

Ans: Haemoglobin

13. How do roots absorb water from the soil?

(a) Diffusion

(b) Transpiration

(c) Osmosis

(d) Active transport

Ans: Osmosis

14. Where does the gas exchange during respiration occur in humans?

(a) Alveoli in the lungs

(b) Trachea and larynx

(c) Throat and nasal cavity

(d) Bronchioles and throat

Ans: Alveoli in the lungs

15. The process by which leaves lose water in the form of vapor is called:

(a) Osmosis

(b) Transpiration

(c) Diffusion

(d) Photosynthesis

Ans: Transpiration

16. Which blood component carries oxygen?

(a) Platelets

(b) RBCs

(c) White blood cells

(d) Plasma

Ans: RBCs

17. Which structure in plants regulates the movement of gases?

(a) Xylem

(b) Phloem

(c) Stomata

(d) Guard cells

Ans: Stomata

18. During photosynthesis, light energy is captured by:

(a) Mitochondria

(b) Plastids

(c) Chlorophyll

(d) Ribosomes

Ans: Chlorophyll

19. What is the site of aerobic respiration in cells?

(a) Cytoplasm

(b) Mitochondria

(c) Chloroplast

(d) Nucleus

Ans: Mitochondria

20. Which blood vessels carry blood away from the heart?

(a) Veins

(b) Capillaries

(c) Arteries

(d) Venules

Ans: Arteries

Frequently asked questions.

What is life the process?

The life process is the activities that biotic organisms perform to sustain themselves on Earth's earthspace. Life processes include Nutrition, Respiration, Transportation, Excretion and Reproduction. The organism body performs various metabolic functions to sustain the body in an environment. The life process is an essential need of any organism to live on this planet.

Why life process is important?

Life prproveife involves the working of organisational functions to live in the environment. The sustainability in taking is getting food and ttransforming itinto assimilated food. The assimilated food gets oxyggetsand releases rgetsasesin the foreleasesTreleases inr; it produces promoreovers for carbon, dioxide and dancer. The transportation of blood maintains in the human body and supports the body to maintain metbody'sism. The double circulation of blood is an important cycle that helps the body to retain the oxygen in cells and remove deoxygenated blood from the body. The removal of undigested food and other liquids is also important to sustain the life of any organism. Nutrition, Respiration, transportation and Excretion are needed to sustain.

Why is the life process needed to maintain the sustenance of an organism?

The life process is important for the survival of organism. The Theory of Evolution given by Charles Darwin and Herbert Spenser provided a detailed explanation by visualizing the various life process activities in various organisms. The life process not only provides sustainability but also helps organisms increase their population through reproduction.