If you’re looking for a way to enhance your Class 10 Biology, then look no further than the NCERT MCQ Questions for Class 10 Science Chapter 6 Life Processes with Answers. MCQ Questions for Class 10 Science with Answers is perfect for those who are in Class 10 Biology and want to get ahead of everyone else by mastering their subject skills as soon as possible!
Life Processes Class 10 MCQs Questions with Answers
Solving Life Processes Multiple Choice Questions of Class 10 Science Chapter 6 MCQ can be of great help to students as they will be aware of all the concepts. These MCQ Questions on Life Processes Class 10 Biology with answers pave for a quick revision, thereby helping you learn more about this subject.
Question 1.
In which of the following group/ groups of animals, heart does not pump oxygenated blood to different parts of the body?
(a) Pisces only
(b) Amphibians only
(c) Amphibians and reptiles only
(d) Pisces and amphibians
Answer
(a) Pisces only
Question 2.
The filtration units of kidneys are called –
(a) Ureter
(b) Urethra
(c) Neurons
(d) nephrons.
Answer
(d) nephrons
Question 3.
Name the substances whose build up in the muscles during vigorous physical exercise may cause cramps?
(a) Ethanol + Carbon dioxide + Energy
(b) Lactic acid + Energy
(c) Carbon dioxide + Water + Energy
(d) Pyruvate
Answer
(b) Lactic acid + Energy
Question 4.
When air is blown from mouth into a test – tube containing lime water, the lime water turned milky due to presence of:
(a) oxygen
(b) nitrogen
(c) water vapour
(d) carbon dioxide
Answer
(d) carbon dioxide
Question 5.
The mode of nutrition found in fungi is:
(a) Parasitic nutrition
(b) Holozoic nutrition
(c) Autotrophic nutrition
(d) Saprotrophic nutrition
Answer
(d) Saprotrophic nutrition
Question 6.
The site of photosynthesis in the cells of a leaf is
(a) chloroplast
(b) mitochondria
(c) cytoplasm
(d) protoplasm
Answer
(a) chloroplast
Question 7.
During contraction of heart, what prevents back flow of blood?
(a) Thin walls of atria
(b) Thick muscular walls of ventricles
(c) Valves in heart
(d) All of the above
Answer
(c) Valves in heart
Question 8.
Woody plants carry gaseous exchange through
(a) root hair
(b) stem hair
(c) Lenticels
(d) epidermal cells.
Answer
(c) Lenticels
Question 9.
The contraction and expansion movement of the walls of the food pipe is called:
(a) translocation
(b) transpiration
(c) peristaltic movement
(d) digestion
Answer
(c) peristaltic movement
Question 10.
The process by which blood is cleared of metabolic wastes in case of kidney failure is called
(a) artificial kidney
(b) dialysis
(c) transplantation
(d) filtration
Answer
(b) dialysis
Question 11.
Trachea do not collapse when there is not much air because they are:
(a) thick and muscular
(b) having cartilaginous rings
(c) have valves
(d) supported by larynx.
Answer
(b) having cartilaginous rings
Question 12.
Which of the following events in the mouth cavity will be affected if salivary amylase is lacking in the saliva?
(a) Starch breaking down into sugars.
(b) Proteins breaking down into amino acids.
(c) Absorption of vitamins.
(d) Fats breaking down into fatty acids and glycerol.
Answer
(a) Starch breaking down into sugars.
Question 13.
Which region of the alimentary canal absorbs the digested food?
(a) Stomach
(b) Small intestine
(c) Large intestine
(d) Liver
Answer
(b) Small intestine
Question 14.
Amoeba shows following kind of nutrition.
(a) autotrophic
(b) holozoic
(c) saprotrophic
(d) parasitic
Answer
(b) holozoic
Question 15.
The exit of unabsorbed food material is regulated by
(a) liver
(b) anus
(c) small intestine
(d) anal sphincter
Answer
(d) anal sphincter
Question 16.
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
Answer
(c) starch
Question 17.
The breakdown of pyruvate to give carbon di-oxide, water and energy takes place in
(a) cytoplasm
(b) mitochondria
(c) chloroplast
(d) nucleus
Answer
(b) mitochondria
Question 18.
Glycolysis process occurs in which part of the cell?
(a) Cytoplasm
(b) Nucleus
(c) Mitochondria
(d) Chloroplast
Answer
(a) Cytoplasm
Question 19.
The respiratory pigment in human beings is:
(a) carotene
(b) chlorophyll
(c) haemoglobin
(d) mitochondria
Answer
(c) haemoglobin
Question 20.
Name the pores in a leaf through which respi-ratory exchange of gases takes place.
(a) Lenticels
(b) Vacuoles
(c) Xylem
(d) Stomata
Answer
(d) Stomata
Question 21.
Name a circulatory fluid in the human body other than blood.
(a) Platelets
(b) RBC
(c) Lymph
(d) Plasma
Answer
(c) Lymph
Question 22.
A blood vessel which pumps the blood from the heart to the entire body:
(a) artery
(b) capillary
(c) Vein
(d) Haemoglobin
Answer
(a) artery
Question 23.
Name the tube which connects the kidneys to the urinary bladder.
(a) Urethra
(b) Nephron
(c) Tubule
(d) Ureter
Answer
(d) Ureter
Question 24.
Single circulation, i.e., blood flows through the heart only once during one cycle of passage through the body, is exhibited by which of the following:
(a) hyla, rana, draco
(b) whale, dolphin, turtle
(c) labeo, chameleon, salamander
(d) hippocampus, exocoetus, anabas
Answer
(d) hippocampus, exocoetus, anabas
Question 25.
Which part of nephron allows the selective re absorption of useful substances like glucose, amino acids, salts and water into the blood capillaries?
(a) Tubule
(b) Glomerulus
(c) Bowman’s capsule
(d) Ureter
Answer
(a) Tubule
Question 26.
The part of the digestive system where no digestion takes place is
(a) ileum
(b) stomach
(c) mouth
(d) esophagus
Answer
(d) esophagus
Question 27.
Normal blood pressure (systolic/diastolic) is
(a) 120/80 mm of Hg
(b) 160/80 mm of Hg
(c) 120/60 mm of Hg
(d) 180/80 mm of Hg
Answer
(a) 120/80 mm of Hg
Question 28.
The procedure used for cleaning the blood of a person by separating urea from it is called:
(a) osmosis
(b) filtration
(c) dialysis
(d) double circulation
Answer
(c) dialysis
Question 29.
Assertion: All proteins in our food are digested in small intestine only.
Reason: The protein digesting enzymes are released onto small intestine.
(a) Both A and R are true and R is the correct explanation of A.
(b) Both A and R are true but R is not the correct explanation of A.
(c) A is true but R is false.
(d) A is false but R is true.
(e) Both A and R are false.
Answer
(e) Both A and R are false.
Question 30.
Assertion: When air is passed through lime water, lime water turns milky.
Reason: Air contains 78% nitrogen and 21% oxygen.
(a) Both A and R are true and R is the correct explanation of A.
(b) Both A and R are true but R is not the correct explanation of A.
(c) A is true but R is false.
(d) A is false but R is true.
(e) Both A and R are false.
Answer
(b) Both A and R are true but R is not the correct explanation of A.
Question 31.
Assertion: Human heart does not allow mixing of oxygen reach blood with carbon dioxide reach blood.
Reason: Human heart has different chambers.
(a) Both A and R are true and R is the correct explanation of A.
(b) Both A and R are true but R is not the correct explanation of A.
(c) A is true but R is false.
(d) A is false but R is true.
(e) Both A and R are false.
Answer
(a) Both A and R are true and R is the correct explanation of A.
Question 32.
Assertion: Veins have thin walls to collect blood from different organs.
Reason: Blood in veins are not under pressure.
(a) Both A and R are true and R is the correct explanation of A.
(b) Both A and R are true but R is not the correct explanation of A.
(c) A is true but R is false.
(d) A is false but R is true.
(e) Both A and R are false.
Answer
(a) Both A and R are true and R is the correct explanation of A.
Question 33.
Which plant tissue transports water and minerals from the roots to the leaf?
(a) Xylem
(b) Phloem
(c) Parenchyma
(d) Collenchyma
Answer
(a) Xylem
Question 34.
Autotrophic organisms include
(a) bacteria and virus
(b) bacteria and fungi
(c) green plants and some bacteria
(d) green plants and all bacteria
Answer
(c) green plants and some bacteria
Question 35.
The process in which loss of water takes place in the form of water vapour through stomata is called
(a) transportation
(b) transpiration
(c) guttation
(d) translocation
Answer
(b) transpiration
Question 36.
A large quantity of one of the following is removed from our body by lungs:
(a) CO2 and H2O
(b) CO2 only
(c) FLO only
(d) ammonia
Answer
(a) CO2 and H2O
Question 37.
Blood pressure is measured by an instrument called
(a) barometer
(b) sphygmomanometer
(c) photometer
(d) manometer
Answer
(b) sphygmomanometer
Question 38.
The autotrophic mode of nutrition requires
(a) carbon dioxide and water
(b) chlorophyll
(c) sunlight
(d) all of the above
Answer
(d) all of the above
Question 39.
Which of the following are chiefly digested in the stomach?
(a) Carbohydrates
(b) Proteins
(c) Lipids
(d) Fats
Answer
(b) Proteins
Question 40.
Large intestine in man mainly carries out
(a) absorption
(b) assimilation
(c) digestion of fats
(d) digestion of carbohydrates
Answer
(a) absorption
Question 41.
Where is the dirty blood in our body filtered?
(a) Heart
(b) Lungs
(c) Ureter
(d) Kidneys
Answer
(d) Kidneys
Question 42.
The breakdown of pyruvate to give carbon dioxide, water and energy takes place in
(a) cytoplasm
(b) mitochondria
(c) chloroplast
(d) nucleus
Answer
(b) mitochondria
Question 43.
The kidneys in human beings are parts of the system for
(a) nutrition
(b) respiration
(c) excretion
(d) transpiration
Answer
(c) excretion
Question 44.
The xylem in plants are responsible for
(a) transport of water
(b) transport of food
(c) transport of amino acids
(d) transport of oxygen
Answer
(a) transport of water
Question 45.
Name the part of alimentary canal receiving bile from the liver.
(a) Oesophagus
(b) Stomach
(c) Small intestine
(d) Large intestine
Answer
(c) Small Intestine
Question 46.
The movement of food in phloem is called:
(a) transpiration
(b) translocation
(c) respiration
(d) evaporation
Answer
(b) translocation
Question 47.
A gland not associated with the alimentary canal is
(a) liver
(b) salivary glands
(c) pancreas
(d) adrenal
Answer
(d) adrenal
Question 48.
A biochemical compound that readily combines with oxygen and distributes it throughout the human body is
(a) water
(b) urea
(c) haemoglobin
(d) acetylcholine
Answer
(c) haemoglobin
Question 49.
In a closed circulatory system, blood is completely enclosed within
(a) vessels
(b) heart
(c) skeleton
(d) sinuses
Answer
(b) heart
Question 50.
Which of the following statements is not correct?
(a) Deoxygenated blood is poured into right atrium of heart.
(b) The excretory units of flatworms are flame cells.
(c) Human kidney has about 1 million nephridia
(d) Tracheids and vessels are non-living conducting tissues.
Answer
(c) Human kidney has about 1 million nephridia
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And without any delay jump to the next chapters of Class 10 Science Biology MCQs:
Biology MCQs Questions for Class 10 with Answers
MCQ Questions for Class 10 Science Biology with Answers PDF Download Chapter Wise
- Chapter 6 Life Processes Class 10 Biology MCQ
- Chapter 7 Control and Coordination Class 10 Biology MCQ
- Chapter 8 How do Organisms Reproduce? Class 10 Biology MCQ
- Chapter 9 Heredity and Evolution Class 10 Biology MCQ
- Chapter 14 Sources of Energy Class 10 Biology MCQ
- Chapter 15 Our Environment Class 10 Biology MCQ
- Chapter 16 Management of Natural Resources Class 10 Biology MCQ