Q 1 – In which group of the organisms the food material is broken down outside the body?
(a) Mushroom, green plants, amoeba
(b) Yeast, mushroom, bread mould
(c) Paramecium, amoeba, cuscuta
(d) Cuscuta, lice, tapeworm
(b) Yeast, mushroom, bread mould
Q 2 – Glycolysis process occurs in which part of the cell?
(a) Cytoplasm
(b) Nucleus
(c) Mitochondria
(d) Chloroplast
(a) Cytoplasm
Q 3 – 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
(b) dialysis
Q 4 – Select the correct statement:-
(a) Heterotrophs make their food
(b) Heterotrophs utilize solar energy to make food
(c) Heterotrophs do not make their own food
(d) Heterotrophs are capable of converting carbon dioxide and water into carbohydrates
(c) Heterotrophs do not make their own food
Q 5 – The mode of nutrition found in fungi is:
(a) Parasitic nutrition
(b) Holozoic nutrition
(c) Autotrophic nutrition
(d) Saprotrophic nutrition.
(d) Saprotrophic nutrition
Q 6 – Which of the following statements about autotrophs is incorrect?
(a) They synthesize carbohydrates by using carbon dioxide, water in the presence of sunlight, and chlorophyll
(b) They store carbohydrates in form of starch
(c) They convert carbon dioxide and water into carbohydrates in the absence of sunlight
(d) They form the first trophic level in the food chain
(c) They convert carbon dioxide and water into carbohydrates in the absence of sunlight.
Q 7 – Trachea does 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.
b) having cartilaginous rings
Q 8 – Which of these reactions occur in Photosynthesis?
(a) Carbon dioxide is reduced and water is oxidized
(b) Water is reduced and carbon dioxide is oxidized
(c) carbon dioxide and water are oxidized
(d) carbon dioxide and water are reduced
(d) carbon dioxide and water are reduced
Q 9 – In which of the following groups/ groups of animals, the 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
(a) Pisces only
Q 10 – The site of photosynthesis in the cells of a leaf is
(a) chloroplast
(b) mitochondria
(c) cytoplasm
(d) protoplasm
Ans – (a) chloroplast.
Q 11 – A few drops of iodine solution were added to rice water. The solution turned blue-black in color. This indicates rice water has –
(a) complex proteins
(b) simple proteins
(c) starch
(d) Fats
(c) starch
Q 12 – The respiratory pigment in human beings is:
(a) carotene
(b) chlorophyll
(c) haemoglobin
(d) mitochondria
(c) haemoglobin
Q 13 – 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.
(a) Starch breaking down into sugars
Q 14 – Which is the correct sequence –
(a) mouth → stomach → small intestine → esophagus → large intestine
(b) mouth → esophagus → stomach → large intestine → small intestine
(c) mouth → stomach → esophagus → small intestine → large intestine
(d) mouth → esophagus → stomach → small intestine → large intestine
(d) mouth → esophagus → stomach → small intestine → large intestine
Q 15 – If salivary amylase is lacking in saliva, which of the event in the mouth will be affected-
(a) Proteins breaking down into amino acids
(b) starch breaking down into sugars
(c) Fats breaking down into fatty acids and glycerol
(d) Absorption of vitamins
(b) starch breaking down into sugars
Q 16 – What happens during the emulsification of fats?
(a) Large fat globules are broken into tiny fat droplets by bile salts.
(b) Fat molecules are broken down into fatty acids and glycerol by enzymes.
(c) Digested fat is absorbed in the small intestine.
(d) Fat molecules are broken into fatty acids and glycerol by bile salts
(a) Large fat globules are broken into tiny fat droplets by bile salts.
Q 17 – The movement of food in phloem is called:
(a) transpiration
(b) translocation
(c) respiration
(d) evaporation
(b) translocation
Q 18 – The inner lining of the stomach is protected by one of the following from hydrochloric acid. Choose the correct one –
(a) Mucus
Q 19 – During contraction of heart, what prevents backflow of blood?
(a) Thin walls of atria
(b) Thick muscular walls of ventricles
(c) Valves in the heart
(d) All of the above
(c) Valves in the heart
Q 20 – Name the pores in a leaf through which the respiratory exchange of gases takes place.
(a) Lenticels
(b) Vacuoles
(c) Xylem
(d) Stomata
(d) Stomata
Q 21 – Which part of the alimentary canal receives bile from the liver –
(a) stomach
(b) small intestine
(c) large intestine
(d) esophagus
(b) small intestine
Q 22 – Woody plants carry gaseous exchange through
(a) root hair
(b) stem hair
(c) Lenticels
(d) epidermal cells.
(c) Lenticels
Q 23 – Assertion: Human heart does not allow the mixing of oxygen to reach blood with carbon dioxide to reach the 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.
(a) Both A and R are true and R is the correct explanation of A.
Q 24 – Amoeba shows following kind of nutrition –
(a) autotrophic
(b) holozoic
(c) saprotrophic
(d) parasitic
(b) holozoic
Q 25 – Choose the function of pancreatic juice from the following :
(a) Trypsin digests proteins and lipase digests carbohydrates
(b) Trypsin digests emulsified fats and lipase digests proteins
(c) Trypsin and lipase digest fats
(d) Trypsin digests proteins and lipase digests emulsified fats
(b) Trypsin digests emulsified fats and lipase digests proteins
Q 26 – 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.
(b) Both A and R are true but R is not the correct explanation of A.
Q 27 – The correct sequence of anaerobic respiration-
a. Glucose → pyruvate → lactic acid
b. glucose → pyruvate → carbon dioxide + ethanol
c. glucose → pyruvate → ADP → lactic acid
d. glucose -→ pyruvate → ethanol + carbon dioxide
d. glucose -→ pyruvate → carbon dioxide + ethanol
Q 28 – The contraction and expansion movement of the walls of the food pipe is called:
(a) translocation
(b) transpiration
(c) peristaltic movement
(d) digestion
(c) peristaltic movement
Q 29 – 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.
(a) Both A and R are true and R is the correct explanation of A.
Q 30 – The pancreatic juice doesn’t contain the following enzymes
(a) Trypsin
(b) Amylase
(c) Lipase
(d) Ptyalin
(d) Ptyalin
Q 31 – The exit of unabsorbed food material is regulated by
(a) liver
(b) anus
(c) small intestine
(d) anal sphincter
(d) anal sphincter
Q 32 – The pancreas pours their secretion into ___.
(a) Small intestine
(b) large intestine
(c) stomach
(d) Duodenum
(d) Duodenum
Q 33 – The kidneys in human beings are part of ______.
(a) Nutrition
(b) Respiration
(c) Excretion
(d) Circulation
(c) Excretion
Q 34 – Which part of the respiratory system is most richly supplied with blood – vessels?
(a) Alveoli
(b) Bronchi
(c) Nostrils
(d) Trachea
(a) Alveoli
Q 35 – Herbivores have a _________________ small intestine when compared to carnivores in order to digest ________________ .
(a) longer, cellulose.
(b) Shorter, Proteins.
(c) Longer, Starch.
(d) Shorter, Fats.
(a) longer, cellulose.
Q 36 – In the human digestion system the enzymes pepsin and trypsin are secreted by?
(a) Pancreas and liver
(b) pancreas and gall bladder
(c) stomach and pancreas
(d) stomach and salivary glands
(d) stomach and salivary glands
Q 37 – Name a circulatory fluid in the human body other than blood.
(a) Platelets
(b) RBC
(c) Lymph
(d) Plasma
(c) Lymph
Q 38 – Which of the statements is correct regarding bile?
A) secreted by duct and stored in the liver
B) secreted by the liver and stored in the bile duct
C) secreted by the liver and stored in the gall bladder
D) secreted by the gall bladder and stored in the liver
B) secreted by the liver and stored in the bile duct
Q 39 – Which is the first enzyme that mixes with food?
A) salivary amylase
B) trypsin
C) Erepsin
D) gastric juice.
A) salivary amylase
Q 40 – The food material after passing through Stomach is introduced into ____________________ which is _______________ in medium .
(a) Large Intestine, Neutral.
(b) Small Intestine, Basic.
(c) Small Intestine, Acidic.
(d) Oesophagus, Basic.
(b) Small Intestine, Basic.
Q 41 – The cellular energy reserves in autotrophs are____.
A) glycogen
B) starch
C) protein
D) fatty acids
A) glycogen
Q 42 – 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
(b) Lactic acid + Energy
Q 43 – The autotrophs require ____.
A) CO2 and water
B) chlorophyll
C) sunlight
D) All
D) All
Q 44 – The breakdown of pyruvate into carbon dioxide, energy and water takes place in _____.
A) mitochondria
B) cytoplasm
C) Endoplasmic reticulum
D) ribosomes
A) mitochondria
Q 45 – When air is blown through lime water it turns milky because of ______.
A) water
B) carbon dioxide
C) limestone
D) calcium oxide
B) carbon dioxide
Q 46 – A blood vessel which pumps the blood from the heart to the entire body:
(a) artery
(b) capillary
(c) Vein
(d) Haemoglobin
(a) artery
Q 47 – Write the correct sequence of air passage involved in inhalation?
A) larynx→ Nostrils → Pharynx → lungs
B) nostrils→ Pharynx→ larynx→ Trachea → alveoli
C) nasal passage → larynx → Trachea → Pharynx→ Alveoli
D) None
B) nostrils→ Pharynx→ larynx→ Trachea → alveoli
Q 48 – The filtration units of kidneys are called
a) Ureter
b) Urethra
c) Neurons
d) nephrons
d) nephrons
Q 49 – During respiration exchange of gases takes place in _____.
A) Trachea and larynx
B) alveoli of lungs
C) Alveoli and throat
D) Throat and larynx
B) alveoli of lungs
Q 50 – Assertion: All proteins in our food are digested in the small intestine only.
Reason: The protein-digesting enzymes are released onto the 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.
(e) Both A and R are false.
Q 51 The correct path of urine is __.
A) Kidney→ ureter → urthra→ urinary bladder
B) Kidney → urinary bladder → urethra → ureter
C) kidney→ ureter → urinary bladder→ urethra
D) urinary bladder → kidney → ureter →urethra
B) Kidney → urinary bladder → urethra → ureter
Q 52 – During deficiency of oxygen in tissues of humans, pyruvic acid is converted into lactic acid in____.
A) Cytoplasm
B) chloroplast
C) mitochondria
D) Golgi body
A) Cytoplasm
Q 53 – Xylem helps in ___.
A) transportation of water
B) translocation of food
C) both a and b
D) transportation of water and minerals
D) transportation of water and minerals
Q 54 – 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
(a) 120/80 mm of Hg
Q 55 – What is the approximate length of an alimentary canal?
A) 3m
B) 4m
C) 5m
D) (4.5 – 5) m
D) (4.5 – 5) m
Q 56 – Name the tube which connects the kidneys to the urinary bladder.
(a) Urethra
(b) Nephron
(c) Tubule
(d) Ureter
(d) Ureter
Q 57 – Which organelle is called the kitchen of the cell?
A) Mitochondria
B) Golgi body
C) ribosomes
D) Chloroplasts
D) Chloroplasts
Q 58 – Which respiration is much efficient?
A) aerobic
B) anaerobic
C) both are equal
D) none
A) aerobic
Q 59 – Write the full form of ATP.
A) adenosine diphosphate
B) adenosine phosphate
C) Adenosine triphosphate
D) none
C) Adenosine triphosphate
Q 60 – Which of the following statement(s) is (are) true about respiration?
A) During inhalation, ribs move inward and the diaphragm is raised
B) In the alveoli, exchange of gases takes place i.e., oxygen from alveolar air diffuses into blood and carbon dioxide from the blood into alveolar air sacs.
C) Haemoglobin has a greater affinity for carbon dioxide than oxygen Alveoli does not help in increasing surface area for the exchange of gases.
D) None of the Above .
B) In the alveoli, exchange of gases takes place i.e., oxygen from alveolar air diffuses into blood and carbon dioxide from the blood into alveolar air sacs.