CBSE Students can practice the NCERT MCQ Questions for Class 10 Science Chapter 6 Life Processes with Answers Pdf free download is available here. Revise all the concepts easily by taking help from the MCQ Questions for Class 10 Science with Answers are prepared based on the latest exam pattern. Students can refer to these Life Processes Class 10 MCQs Questions with Answers and assess their preparation level.
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Also Read: Life Process Important Differences
| CBSE Class 10 | SCIENCE |
|---|---|
| Question Type | MCQ |
| No. of Questions | 60+ |
| Useful for | Class 10 Studying Students |
| Answer | Answers Provided |
LIFE PROCESSES MCQ BIOLOGY
Below is list of MCQ for life process chapter. Students are advised to practice all the below given MCQ to get check their understanding of the topic.
1.An important characteristic of life is
(A) Movement of molecules
(B) Growth
(C) Organisation
(D) Coordination.
Answer
Answer: A
2.Job of maintenance function of living being is
performed by
(A) Movements
(B) Growth
(C) Life processes
(D) Reproduction.
Answer
Answer: C
3.Transport system is required in
(A) Unicellular organisms
(B) Simple multicellular organisms
(C) Complex multicellular organisms
(D) All the above.
Answer
Answer: C
4.In simple organisms, exchange of gases and
excretion occur through
(A) Osmosis
(B) Diffusion
(C) Imbibition
(D) All the above.
Answer
Answer: B
5.Autotrophic nutrition occurs in
(A) Fungi
(B) Plants
(C) Some protists and prokaryotes
(D) Both B and C
Answer
Answer: D
6.The carbohydrate reserve of plants is
(A) Starch
(B) Glycogen
(C) Fat
(D) Cellulose.
Answer
Answer: A
7.The site of photosynthesis in plants is
(A) Mitochondria (B) Chloroplasts
(C) Leucoplasts (D) Dictyosomes.
Answer
Answer: B
8.Oxygen released during photosynthesis comes from
(B) Carbon dioxide
(A) Water
(D) Dictyosomes.
(C) Glucose
Answer
Answer: A
9.ATP synthesis occurs in response to
(A) Electron gradient
(B) Turgor pressure gradient
(C) Proton gradient
(D) Negative pressure.
Answer
Answer: C
10.Mushroom, Rhizopus and Yeast are
(A) Chemosynthetic (B) Parasitic
(C) Holozoic
(D) Saprophytic.
Answer
Answer: D
11.Emulsification of fat is carried out by (A) Lipase (B) Bile (C) Gastric juice (D) Intestinal juice.
Answer
Answer: B
12.Incisors take part in
(A) Grinding
(B) Cutting
(C) Tearing
(D) Crushing
Answer
Answer: B
13.Number of molars that can be present in an adult human is (A) 3
(B) 6 (C) 8
(D) 12
Answer
Answer: D
14.Digestion does not occur in
(A) Stomach (B) Small intestine
(C) Large intestine (D) Jejunum.
Answer
Answer: C
15.Nutrition of Amoeba is
(A) Holozoic
(B) Holophytic
(C) Saprophytic (D) Parasitic.
Answer
Answer: A
16.Light waves where photosynthesis is maximum are
(A) Orange
(B) Green
(C) Violet
(D) Violet-Blue and Red.
Answer
Answer: D
17.In humans, digestion of protein starts in
(A) Stomach
(B) Mouth
(C) Duodenum (D) Ileum.
Answer
Answer: A
18. Proteolytic enzyme of pancreatic juice is
(A) Pepsin
(B) Trypsin
(C) Amylase
(D) Lipase
Answer
Answer: B
19.Which one is anabolic process
(A) Respiration (B) Digestion
(C) Photosynthesis
(D) Ascent of sap.
Answer
Answer: C
20.A catabolic process is
(A) Absorption of minerals
(B) Ascent of sap
(C) Respiration
(D) Assimilation.
Answer
Answer: C
21.Exchange of gasses occurs through
(A) Stomata
(B) Lenticels
(C) Root surfaces (D) All the above.
Answer
Answer: D
22.Glycolysis occurs in
(A) Cytoplasm (B) Mitochondria
(C) Chloroplasts (D) Golgi complex.
Answer
Answer: A
23.Krebs cycle operates in
(A) Endoplasmic reticulum
(B) Chloroplasts
(C) Golgi bodies
(D) Mitochondria.
Answer
Answer: D
24.Which one is a product of glycolysis
(A) Oxaloacetate (B) Pyruvate
(C) Ethyl alcohol (D) Lactic acid.
Answer
Answer: B
25.Adam’s Apple occurs in
(A) Buffaloes (B) Dogs
(C) Human males (D) Human females.
Answer
Answer: C
26.Muscular partition present between thorax and abdomen is
(A) Pericardium (B) Pleura
(C) Epiglottis (D) Diaphragm.
Answer
Answer: D
27.Covering of lungs is
(A) Pleura
(B) Pericardium
(C) Epiglottis (D) Capsule.
Answer
Answer: A
28.Gaseous exchange occurs in the lungs in the region of
(A) Trachea
(B) Bronchi
(C) Bronchioles (D) Alveoli.
Answer
Answer: D
29.Trachea and bronchi have
(A) C-shaped cartilaginous rings
(B) Complete cartilaginous rings
(C) Complete chitinous rings
(D) C-shaped chitinous rings.
Answer
Answer: A
30.Respiratory tract is lined by ciliated epithelium. The function of cilia is to
(A) Trap dust
(B) Trap germs
(C) Push out mucus with trapped germs and dust
(D) Push in air vigorously.
Answer
Answer: C
31.Tracheary elements are components of
(A) Blood vascular system
(B) Xylem
(C) Phloem
(D) Lymphatic system.
Answer
Answer: B
32.Loss of water in vapour form from leaf surface is
(A) Transpiration
(B) Translocation
(C) Transportation (D) Guttation.
Answer
Answer: A
33.Haemoglobin occurs in
(A) WBC
(C) Blood platelets
(B) RBC
(D) Lymphocytes.
Answer
Answer: B
34.Chemical released by blood platelets is
(B) Prothrombin
(A) Heparin
(C) Fibrinogen
(D) Thromboplastin.
Answer
Answer: D
35.Artery having deoxygenated blood is
(A) Aorta
(B) Renal artery
(C) Pulmonary artery (D) Hepatic artery.
Answer
Answer: C
36.Life span of an RBC is
(A) 40 days (B) 80 days
(C) 120 days
(D) 160 days.
Answer
Answer: C
37. Most thick-walled and largest chamber of heart (A) Right auricle (B) Left auricle (C) Right ventricle (D) Left ventricle.
Answer
Answer: D
38.Valve present in the area of left auriculoventricular aperture is A) Biscuspid B) Tricuspid C) Semilunar D) None of the Above
Answer
Answer: A
39.Serum differs from plasma in the absence of (A) Fibrinogen (B) Immunoglobulin (C) Nutrients (D) Waste products
Answer
Answer: A
40.Clotting of blood does not occur inside blood vessels due to presence of (A) Oxalic acid (B) Heparin (C) Prothrombin (D) Hirudin.
Answer
Answer: B
41.Right atrium receives blood from
(A) Superior vena cava (B) Inferior vena cava
(C) Coronary sinus (D) All the above.
Answer
Answer: D
42.Urinary bladder passes out urine through
(A) Ureter
(B) Urethra
(C) Uterus
Answer
Answer: B
43.Useful materials filtered out in nephric filtrate are mostly reabsorbed in the area of – (A) Bowman’s capsule (B) Distal convoluted tubule (C) Loop of Henle (D) Proximal convoluted tubule
Answer
Answer: D
44.Contractile vacuole of Amoeba takes part in A) Locomotion B) Digestion of the food (C) Ingestion of food (D) Osmoregulation.
Answer
Answer: D
- Conversion of pyruvate to ethyl alcohol and carbon dioxide occurs in
(A) Chloroplasts
(C) Cytoplasm B) Mitochondria D) Golgi apparatus
Answer
Answer: C
46.Tannins are deposited in
(A) Bark
(B) Old xylem
(C) Sieve tubes
(D) Both A and B
Answer
Answer: D
47.Resins and gums are normally deposited in
plants in
(A) Heartwood (B) Sapwood
(C) Fruits
(D) Seeds.
Answer
Answer: A
48.Every plant cell has a dump for waste products. It is
(A) Cytoplasm (B) Central vacuole
(C) Golgi apparatus (D) Lysosome.
Answer
Answer: B
49.Dilution or concentration of urine is determined
by availability of
(A) Hormone thyroxine
(B) Hormone thymosine
(C) Hormone ADH
(D) Both A and B.
Answer
Answer: C
50.Basic filtration unit of kidney is
(A) Ureter
(B) Glomerulus
(C) Urethra
(D) Collecting tubule.
Answer
Answer: B
51.Energy is required in phloem transport during
(A) Passage through sieve tubes
(B) Loading
(C) Unloading
(D) Both B and C.
Answer
Answer: D
52.Fat digested and absorbed in the intestine is
carried by
(A) Blood capillaries (B) Blood arteriole
(C) Blood venules (D) Lymph capillary.
Answer
Answer: D
53.The instrument used in measuring blood pressure is
(A) Stethoscope (B) Sphygomanometer
(C) Electrocardiograph (D) Endoscope.
Answer
Answer: B
54.The normal blood pressure is
(A) 160/120 mm Hg (B) 140/90 mm Hg
(C) 120/80 mm Hg (D) 110/70 mm Hg.
Answer
Answer: C
55.During ventricular systole, the tricuspid and
bicuspid valves are not pushed into auricles
due to presence of
(A) Chordae tendineae
(B) Papillary muscles
(C) Columnae carneae
(D) Both Band C
Answer
Answer: A
56.The muscles taking part in expansion of thoracic
cavity during inhalation are
(A) Internal intercostal muscles
(B) External intercostal muscles
(C) Phrenic muscles
(D) Both Band C
Answer
Answer: D
57.Anaerobic breakdown of glucose in our muscles produces
(A) Pyruvate
(B) Lactic acid
(C) Ethyl alcohol (D) Oxalic acid.
Answer
Answer: B
58. Which animals need a longer small intestine to digest cellulose?
- Grazers
- Carnivores
- Omnivores
- Herbivores
Answer
Herbivores
59. What converts proteins to amino acids and complex carbohydrates into glucose and glycerol?
- Amylase
- Acids
- Proteins
- Enzymes
Answer
Enzymes
60. Read the following statements carefully:
Statement I: The exit of food from the stomach is regulated by a sphincter musclewhich releases it in small amounts into the small intestine.
Statement II: The length of the small intestine differs in variousanimals depending on the food they eat.
Statement III: Herbivores eating grass need alonger small intestine to allow the cellulose to be digested.
Which of the above Statement(s) is/are correct:Rate Question
- I and III.
- II and III only.
- II only
- All Statements are Correct.
Answer
All Statements are Correct.
61. Read the following statements carefully:
Statement I: Bile juice from the liver accomplishes this in addition to acting on fats.
Statement II: The pancreas secretes pancreatic juice which containsenzymes like trypsin for digesting proteins and lipase for breaking downemulsified fats.
Statement III: The walls of the small intestine contain glands whichsecrete intestinal juice.
Which of the above Statement(s) is/are correct:Rate Question
- I and III.
- II and III only.
- II only
- All Statements are Correct.
Answer
All Statements are Correct.
62. What is the longest part of the alimentary canal?
Answer: Small intestine
63. What ensures that blood does not flow backwards when the atria or ventricles contract?Rate Question
- Valves
- Solenoid
- Hydraulic
- Cylinders
Answer
Valves.
64. What is the upper chamber of the heart on the left?
Answer: Left atrium
Please find MCQ solutions student should first try to attempt without referring to answer then refer answer afterwards. Best of luck for your Exam Keep Practicing.
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