Class 10 Science Life Process MCQs Online Test

Life Process is one of the most important science chapters in class 10. We have the Life Process class 10 multiple-choice questions available online to help you get better at science. Experts in the field have produced these Class 10 Life Process Multiple Choice Questions. Students can have a better understanding of complex science ideas by using the Life Process Class 10 Multiple Choice Questions. We’ve taken the effort to offer something special that can make science enjoyable. Practice the science multiple-choice questions that we have provided on our website with enjoyment.

The MCQ for class 10 Life Process was created using the most recent math curriculum from CBSE. You should practice Class 10 Life Process MCQ on a regular basis to ensure that you receive high exam scores.

We have created class 10 Life Process multiple-choice questions (MCQs) to assist you in your preparation since success in science requires consistent practice.

Class 10 Science Life Process MCQs Online Test

Class 10 Science Life Process Mock test

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Q1. Which of the following statements about the autotrophs is incorrect?

They constitute the first trophic level in food chains

They convert carbon dioxide and water into carbohydrates in the absence of sunlight

They store carbohydrates in the form of starch

They synthesise carbohydrates from carbon dioxide and water in the presence of sunlight and chlorophyll

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Q2. In which of the following groups of organisms, food material is broken down outside the body and absorbed?

Mushroom, green plants, Amoeba

Yeast, mushroom, bread mould

Paramecium, Amoeba, Cuscuta

Cuscuta, lice, tapeworm

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Q3. Select the correct statement

Heterotrophs do not synthesise their own food

Heterotrophs utilise solar energy for photosynthesis

Heterotrophs synthesise their own food

Heterotrophs are capable of converting carbon dioxide and water into carbohydrates

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Q4. Which is the correct sequence of parts in human alimentary canal?

Mouth → stomach → small intestine → oesophagus → large intestine

Mouth →oesophagus → stomach → large intestine → small intestine

Mouth → stomach → oesophagus → small intestine → large intestine

Mouth → oesophagus → stomach → small intestine → large intestine

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Q5. If salivary amylase is lacking in the saliva, which of the following events in the mouth cavity will be affected?

Proteins breaking down into amino acids

Starch breaking down into sugars

Fats breaking down into fatty acids and glycerol

Absorption of vitamins

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Q6. The inner lining of stomach is protected by one of the following from hydrochloric acid. Choose the correct one

Pepsin

Mucus

Salivary amylase

Bile

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Q7. Which part of alimentary canal receives bile from the liver?

Oesophagus

Large intestine

Small intestine

Stomach

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Q8. A few drops of iodine solution were added to rice water. The solution turned blue-black in colour. This indicates that rice water contains

complex proteins

simple proteins

fats

starch

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Q9. In which part of the alimentary canal food is finally digested?

Stomach

Mouth cavity

Large intestine

Small intestine

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Q10. Choose the function of the pancreatic juice from the following

trypsin digests proteins and lipase carbohydrates

trypsin digests emulsified fats and lipase proteins

trypsin and lipase digest fats

trypsin digests proteins and lipase emulsified fats

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Q11. When air is blown from mouth into a test-tube containing lime water, the lime water turned milky due to the presence of

oxygen

carbon dioxide

nitrogen

water vapour

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Q12. Which of the following statement(s) is (are) true about respiration?
(i) During inhalation, ribs move inward and diaphragm is raised
(ii) In the alveoli, exchange of gases takes place i.e., oxygen from alveolar air diffuses into blood and carbon dioxide from blood
into alveolar air
(iii) Haemoglobin has greater affinity for carbon dioxide than oxygen
(iv) Alveoli increase surface area for exchange of gases

(i) and (iv)

(ii) and (iii)

(i) and (iii)

(ii) and (iv)

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Q13. Which is the correct sequence of air passage during inhalation?

Nostrils → larynx → pharynx → trachea → lungs

Nasal passage → trachea → pharynx → larynx → alveoli

larynx → nostrils → pharynx → lungs

Nostrils → pharynx → larynx → trachea → alveoli

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Q14. During respiration exchange of gases take place in

trachea and larynx

alveoli of lungs

alveoli and throat

throat and larynx

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Q15. Which of the following statement (s) is (are) true about heart?
(i) Left atrium receives oxygenated blood from different parts of body while right atrium receives deoxygenated blood from lungs
(ii) Left ventricle pumps oxygenated blood to different body parts while right ventricle pumps deoxygenated blood to lungs
(iii) Left atrium transfers oxygenated blood to right ventricle which sends it to different body parts
(iv) Right atrium receives deoxygenated blood from different parts of the body while left ventricle pumps oxygenated blood to different parts of the body

ii and iv

i and iii

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Q16. What prevents backflow of blood inside the heart during contraction?

Valves in heart

Thick muscular walls of ventricles

Thin walls of atria

All of the above

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Q17. Single circulation i.e., blood flows through the heart only once during one cycle of passage through the body, is exhibited by

Labeo, Chameleon, Salamander

Hippocampus, Exocoetus, Anabas

Hyla, Rana, Draco

Whale, Dolphin, Turtle

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Q18. In which of the following vertebrate group/groups, heart does not pump oxygenated blood to different parts of the body?

Pisces and amphibians

Amphibians and reptiles

Amphibians only

Pisces only

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Q19. The filtration units of kidneys are called

ureter

urethra

neurons

nephrons

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Q20. Oxygen liberated during photosynthesis comes from

water

chlorophyll

carbon dioxide

glucose

Your score is

The average score is 62%

Class 10 Science Life Process MCQs Online Test

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