CBSE Class 7 Science Nutrition in Animals MCQs Set 02

Question. Insectivorous plant is –
(a) Mustard
(b) Cuscuta
(c) Nepenthes
(d) Neem

Answer: C

Question. _____ Humans are unable to digest the cellulose of the food because :
(a) Their stomach is not divided into compartments.
(b) The lumen of the small intestine is narrow.
(c) They are unable to chew cellulose.
(d) Certain bacteria that are present in ruminants are not present in humans.

Answer: C

Question. _____ Which of the following has ability to fix carbon into organic products.
(a) Autotrophs
(b) Heterotrophs
(c) Parasites
(d) All of these

Answer: A

Question. Identify the odd one out :
(a) Neem
(b) Amaranthus
(c) Rose
(d) Cuscuta

Answer: D

Question_____ Which organisms feed on blood ?
(a) Omnivores
(b) frugivorous
(c) Sanguivorous
(d) Insectivores

Answer: C

Question. The role of chlorophyll in photosynthesis is to –
(a) absorb water and minerals
(b) absorption of CO₂
(c) absorption of light and photolysis of water
(d) absorption of light

Answer: D

Question. The function of scissors is synonymous with the function of
(a) Incisors
(b) Premolars
(c) Canines
(d) Molars

Answer: C

Question. Match Column-I with Column-II and select the correct option from the codes given below.
            Column I                   Column – II
(a) Salivary gland             (i) Breaks down fats
(b) Intestinal gland          (ii) Breaks down proteins into peptides
(c) Pancreas                   (iii) Breaks down peptides into amino acids
(d) Liver                         (iv) Breaks down starch into sugar
(a) (a)-(iv),(b)-(iii),(c)-(ii),(d)-(i)
(b) (a)-(i),(b)-(ii),(c)-(iii),(d)-(iv)
(c) (a)-(ii), (b)-(iii), (c)-(i), (d)-(iv)
(d) (a)-(iv), (b)-(ii), (c)-(iii), (d)-(i)

Answer: A

Question. Read the given paragraph where few words have been italicised.
Buccal cavity of humans contains two pairs of salivary glands which secrete digestive juices that help in digestion of proteins present in food. From here food enters stomach where digestion of mainly fats takes place. As this semi-digested food enters small intestine complete digestion of food occurs. Small intestine receives bile juice from pancreas which digests fats. Most absorption of water occurs in large intestine.
Select the correct option regarding this.
(a) Two should be replaced by four whereas proteins should not be replaced as it is correctly mentioned.
(b) Fats should be replaced by carbohydrates and pancreas should be replaced by liver.
(c) Digests should be replaced by emulsifies.
(d) Large should be replaced by small.

Answer: C

Question. How does photosynthesis help to maintain the percentage of oxygen and carbon dioxide in the atmosphere?
(a) By giving off carbon dioxide and absorbing oxygen.
(b) By giving off oxygen and absorbing carbon dioxide.
(c) By releasing oxygen and carbon dioxide.
(d) By absorbing oxygen and carbon dioxide.

Answer: B

Question. Out of total solar energy reaching earth, the amount utilized by the green plants is (T)
(a) 0.5%
(b) 1.0%
(c) 2.5 %
(d) 5.0%

Answer: B

Question. On Saturday, Sumit after having his lunch, forgot his lunch box in the school. When he opened it on Monday, he found that it had some blackish-brown, cottony stuff in it. Which of the following organisms can it most likely be ? (T)
(a) Mushroom
(b) Amoeba
(c) Rhizopus
(d) Either A or C

Answer: C

Question. Which one of the following is a correct match ?
Type of teeth Function
(a) Incisors Biting and cutting
(b) Canines Crushing and grinding
(c) Molars & premolars Piercing and tearing
(d) Molars Smaller than premolars

Answer: A

Question. The phenomenon which converts light energy to chemical energy is –
(a) respiration
(b) photosynthesis
(c) transpiration
(d) none of these

Answer: B

Question. What role does the insect play in the insectivorous plant ?
(a) Fertilization process.
(b) Provides nutrients to the plant.
(c) Dispersal of seeds.
(d) Provides carbon dioxide to the plant.

Answer: B

Question. What is the role of the bacteria in leguminous plants ?
(a) Convert oxides of nitrogen into soil nitrates.
(b) Convert atmospheric nitrogen gas into soil nitrates.
(c) Convert soil nitrates into gaseous nitrogen.
(d) Convert plant proteins into ammonia.

Answer: B

Question. Read the given statements and select the correct option.
Statement 1: Plants serve as the ultimate food source for all the organisms whether herbivores or carnivores.
Statement 2 : Plants use solar energy to prepare their own food.
(a) Both statements 1 and 2 are true and statement 2 is the correct explanation of statement 1.
(b) Both statements 1 and 2 are true but statement 2 is not the correct explanation of statement 1.
(c) Statement 1 is true but statement 2 is false.
(d) Both statements 1 and 2 are false.

Answer: A

Question. Which part of the leaf controls the rate of loss of water in the air ?
(a) Midrib
(b) Stomata
(c) Vascular bundles
(d) Veins

Answer: B

Question. Cuscuta is
(a) Endoparasite of sheep
(b) Endoparasite of human beings
(c) A parasitic plant
(d) A parasite on fishes

Answer: C

Question. What is common among pancreatic amylase, rennin and pepsin –
(a) All these are protein
(b) All these are protein digesting enzymes
(c) All these are not produced in stomach
(d) All these act at lower pH

Answer: A

Question. Chlorophyll is present in –
(a) Chloroplast
(b) Ribosome
(c) Leucoplast
(d) Chromoplast

Answer: A

Question. Which of the following is insectivorous ?
(a) Mushroom
(b) Cuscuta
(c) Mucor
(d) Nepenthes

Answer: B

Question. Which of the following statements is true about croton plants ?
(a) Croton plants do not contain chlorophyll.
(b) Croton plants are dark red in colour Hence they depend on other plants for food.
(c) Croton plants have chlorophyll but it is hidden by dark red colour pigments.
(d) Croton plants are parasites

Answer: C

Question. Teeth involved in cutting of food material are called –
(a) canines
(b) incisors
(c) molars
(d) premolars

Answer: B

Question. Digestion of starch starts from –
(a) stomach
(b) intestine
(c) oesophagus
(d) mouth

Answer: D

Question. Digestion is completed in
(a) Duodenum
(b) Ileum
(c) Stomach
(d) Large Intestine

Answer: B

Question_____ Which is not a protein digestion enzyme ?
(a) Trypsin
(b) Amylase
(c) Pepsin
(d) Rennin

Answer: B

Question_____ The process of covering large fat droplets into small ones is called
(a) Egestion
(b) Assimilation
(c) Emulsification
(d) None of these

Answer: C

Question. _____ Which of the following statement is correct about Euglena.
(a) It is exclusively autotrophic.
(b) It is exclusively heterotrophic.
(c) It does not possess chlorophyll.
(d) It is autotropic in presence of light and heterotrophic in absence of light.

Answer: D

Question. In amoeba absorption of the digested nutrients occurs in –
(a) cytoplasm
(b) plasma membrane
(c) contractile vacuole
(d) pseudopodia

Answer: A

Question. Total number of canines in permanent dental set of human is –
(a) 4
(b) 6
(c) 2
(d) 12

Answer: A

Question. Number of permanent teeth in humans is :
(a) 28
(b) 30
(c) 32
(d) 34

Answer: C

Question. In human being gastric juice is secreted by –
(a) Liver
(b) Stomach
(c) Pancreas
(d) Small intestine

Answer: B

Question. Where is bile stored in the human body ?
(a) Liver
(b) Gall bladder
(c) Spleen
(d) Blood

Answer: B

Question_____ Maximum digestion occurs in
(a) Small intestine
(b) Oesophagus
(c) large intestine
(d) Stomach

Answer: A

Question. Enzyme which breaks up starch into sugar is –
(a) hydrolase
(b) amylase
(c) lipase
(d) nuclease

Answer: B

Question. The folds present in small intestine which increase the area of absorption are called as –
(a) Cristae
(b) Villi
(c) Cilia
(d) Flagella

Answer: B

Fill In The Blanks

Question. _____is the ultimate source of energy
Answer: Sun

Question. Largest gland of body is _________
Answer: Liver

Question. Gas released during photosynthesis is _____
Answer: Oxygen

Question. Food is pushed down into the stomach by _________
Answer: Peristalsis

Question. Organisms those feed on fruits _____
Answer: Frugivorous

True / False

Question. Plants obtain nitrogen from soil.
Answer: True

Question. Human being is an omnivorous organism.
Answer: True

Question. Plant intake carbon dioxide during respiration.
Answer: True

Question. Solar energy is captured by leaves.
Answer: True

Question. Formula of half upper jaw of permanent teeth is 2123.
Answer: True
 

Direction (Q. A & B) : Refer the given passage and answer the following questions.
Some organisms like fungi, etc. take in nutrients in solution form from dead and decaying matter. and are called saprotrophs. Fungi also grow on pickles, leather clothes and other articles that are left in hot and humid weather for long time. Certain fungi live in the roots of trees and share shelter and nutrients. This is called symbiotic relationship.

A. Which of the following statements is/are incorrect ?
(i) Fungi are called saprotrophs because they grow on pickles, leather and clothes.
(ii) Saprotrophs lack chlorophyll. so cannot make food by photosynthesis.
(iii) Like some fungi, lichens also show symbiotic relationship.
(iv) The bacterium called Rhicobium shows symbiotic relationship as it provides shelter.
water and minerals to legumes and, in return. the legumes provide food which they prepare by photosynthesis.
(a) (i) and (iv)
(b) (i) and (ii)
(c) (ii) and (iii)
(d) (iv) only

Answer: A

B. Which of the following organisms shows symbiotic relationship ?
(a) All fungi
(b) Lichens
(c) Rhizobum
(d) Both B & C

Answer: D

Match The Column

I . Column A                      Column B
(i) Mastication                  (a) Large intestine
(ii) Absorption of water     (b) Liver
(iii) Villi                            (c) Mouth
(iv) Hydrochloric acid       (d) Stomach
(v) Bile                            (e) Small intestine

Answer: (i)-(c),(ii)-(a),(iii)-(e),(iv)-(d), (v)-(b)

II . Column A Column B
(i) Carbohydrate        (a) Do not contain nutrient
(ii) Proteins               (b) Glucose
(iii) Fats                    (c) Amino acid
(iv) vitamins             (d) Fatty acid
(v) Roughage            (e) Provide immunity

Answer: (i)-(b),(ii)-(c),(iii)-(d),(iv)-(e), (v)-(a)