CBSE Class 10 Science MCQs Chapter 6 Life Processes

Life Processes Class 10 MCQs

CBSE Class 10 Science MCQs Chapter 6 Life Processes help students tackle the multiple-choice questions asked in the board exam. The Life Processes Class 10 MCQs provided here cover the different concepts of Chapter 6, Life Processes – transport and excretion in various organisms. In addition to MCQs on Life Processes Class 10, this chapter gives students detailed information on how these life processes are interconnected and their needs in an organism. So, students need to have a strong conceptual understanding of the chapter; only then could they be able to answer the Class 10 Science Chapter 6 MCQs. Just mugging up the topics will not help them solve the MCQs of the Life Process in the CBSE Class 10 exam. So, students are advised to go through the chapter thoroughly before answering these Life Processes MCQs Class 10.

By practising these Life Processes MCQs, students get well-versed with the new type of questions that can be asked in exams. Also, these Life Process MCQs will help students understand the new question paper format. They can download the CBSE Class 10 Science MCQs Chapter 6 Life Processes PDF in the link below so that they can refer to them anytime while studying. These Class 10 Life Processes MCQs will boost the confidence level of students. So, practising Class 10 Life Process MCQs help them score high marks in the board exam. Students can also access the CBSE Class 10 Science MCQs for other chapters for their exam preparation.

Download CBSE Class 10 Science MCQs Chapter 6 Life Processes with Answer PDF

The CBSE Class 10 Science Chapter 6 Life Processes MCQs are designed as per the CBSE Class 10 Science Syllabus. The important concepts covered under MCQs on Life Processes Class 10 are given below. Solving these MCQs on Life Processes in Class 10 will provide good practice for students.

• Autotrophic Nutrition
• Heterotrophic Nutrition
• Respiration
• Transportation in Animals
• Transportation in Plants
• Excretion in Humans
• Excretion in Plants

CBSE Class 10 Science MCQs Chapter 6 Life Processes with Answers

Q1) In amoeba, food is digested in the:

(a) Food vacuole

(b) Mitochondria

(c) Pseudopodia

(d) Chloroplast

Correct Answer: Option (a)

Q2) In which of the following groups of organisms are food materials broken down outside the body and absorbed?

(a) Mushroom, green plants, amoeba

(b) Yeast, mushroom, bread mould

(c) Paramecium, amoeba, cuscuta

(d) Cuscuta, lice, tapeworm

Correct Answer: Option (b)

Q3) The contraction and expansion movement of the walls of the food pipe is called:

(a) Translocation

(b) Transpiration

(c) Peristaltic movement

(d) Digestion

Correct Answer: Option (c)

Q4) What are the products obtained by anaerobic respiration in plants?

(a) Lactic acid + energy

(b) Carbon dioxide + water + energy

(c) Ethanol + carbon dioxide + energy

(d) Pyruvate

Correct Answer: Option (c)

Q5) When a few drops of iodine solution are added to rice water, the solution turns blue-black in colour. This indicates that rice water contains:

(a) Fats

(b) Complex proteins

(c) Starch

(d) Simple proteins

Correct Answer: Option (c)

Q6) Which of the equations shows the correct conversion of CO2 and H2O into carbohydrates in plants?

Correct Answer: Option (c)

Q7) The respiratory pigment in human beings is:

(a) Carotene

(b) Chlorophyll

(c) Haemoglobin

(d) Mitochondria

Correct Answer: Option (c)

Q8) Which of the following is the important characteristic of Emphysema?

(a) Destruction of the alveolar wall and air sacs in the lungs are damaged

(b) Increase in the growth of the lung tissue

(c) Inflammation in the wall of the bronchi

(d) Thickening of the artery walls of the lungs

Correct Answer: Option (a)

Q9) The following image shows the bread moulds on bread:

How do these fungi obtain nutrition?

(a) By eating the bread on which it is growing

(b) By using nutrients from the bread to prepare their own food

(c) By breaking down the nutrients of bread and then absorbing them

(d) By allowing other organisms to grow on the bread and then consuming them

Correct Answer: Option (c)

Q10) The characteristic processes observed in anaerobic respiration are:

i) Presence of oxygen

ii) Release of carbon dioxide

iii) Release of energy

iv) Release of lactic acid

(a) i), ii) only

(b) i), ii), iii) only

(c) ii), iii), iv) only

(d) iv) only

Correct Answer: Option (c)

Q11) The opening and closing of the stomatal pore depend upon:

(a) Oxygen

(b) Temperature

(c) Water in the guard cells

(d) Concentration of CO₂

Correct Answer: Option (c)

Q12) The given image shows how Amoeba obtains nutrition.

How is this process advantageous for amoeba?

(a) Capturing food takes less time

(b) Complex food can be digested easily

(c) More amount of food can be consumed

(d) Fast distribution of nutrition within the body

Correct Answer: Option (d)

Q13) A plant gets rid of excess water through transpiration. What is the method used by plants to get rid of solid waste products?

(a) Shortening of stem

(b) Dropping down fruits

(c) Shedding of yellow leaves

(d) Expansion of roots into the soil

Correct Answer: Option (c)

Q14) Chemicals present in tobacco smoke lead to the breakdown of the elastic tissue in the alveoli. Name this specific condition.

(a) Heart disease

(b) Emphysema

(c) Bronchitis

(d) Lung cancer

Correct Answer: Option (b)

Q15) Digestion of food starts from which organ of the human digestive system?

(a) Mouth due to the presence of saliva

(b) Oesophagus that moves the food in the gut

(c) Pancreas that releases juices for fat breakdown

(d) Stomach that helps in mixing food with digestive juices

Correct Answer: Option (a)

Q16) The image shows the excretory system in humans.

What is the importance of the labelled part in the excretory system?

(a) It produces urine.

(b) It filters waste from the blood.

(c) It stores the urine till urination.

(d) It carries urine from the kidney to the outside.

Correct Answer: Option (c)

Q17) The image shows the transport of gases in the body through the heart and lungs.

Which of the following option shows the transport of oxygen to the cell correctly?

(a) Lungs →pulmonary vein →left atrium →left ventricle →aorta → body cells

(b) Lungs →pulmonary vein →right atrium →right ventricle → aorta → body cells

(c) Lungs →pulmonary artery →left atrium → left ventricle → vena cava → body cells

(d) Lungs →pulmonary artery →right atrium → right ventricle→ vena cava → body cells

Correct Answer: Option (a)

Q18) What is the percentage of oxygen in the expired air when a person is resting?

(a) 12%

(b) 16%

(c) 20%

(d) 24%

Correct Answer: Option (b)

Q19) How is food transported from the phloem to the tissues according to plants’ needs?

(a) Food is transported along with the water in the plant’s body

(b) Food is transported in only one direction, like water in the plant body through the xylem

(c) Food is transported from a region with a low concentration to a higher concentration

(d) Food is transported from the region where it is produced to other parts of the plants

Correct Answer: Option (d)

Q20) Which of the following is the correct sequence of body parts in the human alimentary canal?

(a) Mouth → stomach → small intestine → large intestine → oesophagus

(b) Mouth → oesophagus → stomach → small intestine → large intestine

(c) Mouth → stomach → oesophagus → small intestine → large intestine

(d) Mouth → oesophagus → stomach → large intestine → small intestine

Correct Answer: Option (b)

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