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MCQOPTIONS
This section includes 2637 Mcqs, each offering curated multiple-choice questions to sharpen your 7th Class knowledge and support exam preparation. Choose a topic below to get started.
| 2551. |
Which of the following is not digested by human beings? |
| A. | Fats |
| B. | Proteins |
| C. | Carbohydrates |
| D. | Cellulose |
| Answer» E. | |
| 2552. |
Hydrochloric acid secreted by stomach does not participate in: |
| A. | Killing bacteria which may enter the stomach. |
| B. | Making medium in the stomach acidic. |
| C. | Breaking up fats into fatty acids. |
| D. | All the above |
| Answer» D. All the above | |
| 2553. |
__ is the process by which food moves forward in the alimentary canal? |
| A. | Hydrolysis |
| B. | Peristalsis |
| C. | Proboscis |
| D. | Protruding |
| Answer» C. Proboscis | |
| 2554. |
Amoeba is a: |
| A. | non - living thing |
| B. | Prokaryote |
| C. | Eukaryote |
| D. | Land animal |
| Answer» D. Land animal | |
| 2555. |
Amarbel is also known as: |
| A. | Pitcher |
| B. | Cuscuta |
| C. | Sundew |
| D. | Mould |
| Answer» C. Sundew | |
| 2556. |
Oval-shaped structures in which chlorophyll is found : |
| A. | Stomata |
| B. | Guard cell |
| C. | Chloroplast |
| D. | Vacuole |
| Answer» D. Vacuole | |
| 2557. |
Which of the following is an insectivorous plant? |
| A. | Venus flytrap |
| B. | Pitcher |
| C. | Sundew |
| D. | All the above |
| Answer» E. | |
| 2558. |
____ is a fungus which obtains nutrition through saprophytic nutrition. |
| A. | Dodder |
| B. | Mildew |
| C. | Pitcher |
| D. | Venus flytrap |
| Answer» C. Pitcher | |
| 2559. |
Which of the following plants does not depend on autotrophic nutrition for food? |
| A. | Neem tree |
| B. | Lemon tree |
| C. | Dodder plant |
| D. | Mimosa plant |
| Answer» D. Mimosa plant | |
| 2560. |
If chlorophyll (green pigment) is present in leaves of other colours, then why do they not appear green? |
| A. | They have no chlorophyll in them |
| B. | The chlorophyll present in them is of different colour. |
| C. | The green colour is masked by large amount of red, brown or other pigments present in them. |
| D. | None of the above is correct. |
| Answer» D. None of the above is correct. | |
| 2561. |
Saprotrophs |
| A. | Plants which derive their nutrition from dead and decaying matter |
| B. | Plants whose mode of nutrition is saprotrophic |
| C. | Both the above are correct |
| D. | None of the above is correct |
| Answer» D. None of the above is correct | |
| 2562. |
In a symbiotic relationship |
| A. | two organisms live in intimate association |
| B. | two organisms share shelter and nutrition |
| C. | both the above are correct |
| D. | none of the above is correct |
| Answer» D. none of the above is correct | |
| 2563. |
DIRECTIONS: Read the passage (s) given below and answer the questions that follow. Passage - 2 There are some plants that can eat animals. A few plants can trap insects and digest them. Such plants maybe green or of some other colour. One such plant is a pitcher plant whose pitcher like structure is a modified part of the leaf. The apex of the leaf forms a lid which can open and close the mouth of the pitcher. In the pitcher plant |
| A. | there is a pitcher like structure |
| B. | the apex of the leaf forms a lid which can open and close the mouth of the pitcher. |
| C. | both the above are correct |
| D. | none of these is correct |
| Answer» D. none of these is correct | |
| 2564. |
A vine like plant with yellowish stem and it get nutrition from banyan tree. |
| A. | Sundew |
| B. | Dodder |
| C. | Pitcher plant |
| D. | Venus fly trap |
| Answer» C. Pitcher plant | |
| 2565. |
In leguminous plants the roots are modified into |
| A. | stilt roots |
| B. | nodulated roots |
| C. | fibrous roots |
| D. | prop roots |
| Answer» D. prop roots | |
| 2566. |
DIRECTIONS: Match column I with column II and select the correct answers using the code given below the columns. Column-I Column-II (A) Nutrition (p) mode of nutrition (B) Autotrophic (q) Basic unit of structure of all living beings. (C) Cell (r) Mode of taking food (D) Nutrients (s) Those components of food that are necessary for our body. |
| A. | (A) \[\to \] (p), (B) \[\to \] (q), (C) \[\to \] (r), (D) \[\to \] (s) |
| B. | (A) \[\to \] (q), (B) \[\to \] (r), (C) \[\to \] (s), (D) \[\to \] (p) |
| C. | (A) \[\to \] (r), (B) \[\to \] (p), (C) \[\to \] (q), (D) \[\to \] (s) |
| D. | (A) \[\to \] (r), (B) \[\to \] (s), (C) \[\to \] (p), (D) \[\to \] (q) |
| Answer» C. (A) \[\to \] (r), (B) \[\to \] (p), (C) \[\to \] (q), (D) \[\to \] (s) | |
| 2567. |
DIRECTIONS: Read the passage (s) given below and answer the questions that follow. Passage - 1 The bodies of living organisms are made of tiny units called cells. Cells can be seen only under microscope. Some organisms are made of only one cell. The cell is enclosed by a thin boundry, called the cell membrane. The smallest structural unit of a living organism is |
| A. | a cell |
| B. | a tissue |
| C. | either a cell or a tissue |
| D. | none of these |
| Answer» B. a tissue | |
| 2568. |
Which structure in a green plant transports the synthesized food from leaves to all other parts of the plant body? |
| A. | Guard cell |
| B. | Mesophyll |
| C. | Phloem |
| D. | Xylem |
| Answer» D. Xylem | |
| 2569. |
Which of the following statement is/are NOT true about photosynthesis? P - Carbon dioxide is essential for photosynthesis to take place. Q - The products of photosynthesis are simple sugars. R - Photosynthesis occurs in the green leaves of plants. S - Sunlight is not used as an energy source by plants to make food during photosynthesis. |
| A. | P and S only |
| B. | Q, R and S only |
| C. | P, Q and R only |
| D. | P, Q, R and S |
| Answer» E. | |
| 2570. |
Which of the following is a mode of nutrition? |
| A. | Autotroph |
| B. | Heterotroph |
| C. | Saprophytic |
| D. | All of these |
| Answer» D. All of these | |
| 2571. |
Which of the following is present in root nodules of leguminous plants that fixes the atmospheric nitrogen? |
| A. | Rhizobium bacteria |
| B. | Blue-green algae |
| C. | Nitrifying bacteria |
| D. | Paramoecium |
| Answer» B. Blue-green algae | |
| 2572. |
Nutrients enable living organisms |
| A. | to grow |
| B. | to build their bodies |
| C. | to provide energy |
| D. | all the above are correct |
| Answer» E. | |
| 2573. |
What is the principal source of energy input to biological systems? |
| A. | Carbohydrates from plants. |
| B. | Light from the sun. |
| C. | Nutrients from the soil. |
| D. | Oxygen from the air. |
| Answer» C. Nutrients from the soil. | |
| 2574. |
DIRECTIONS: Carefully observe pictures given below and answer the following questions. DIRECTION: Look at the given image and answer the given questions: Absorption of \[C{{O}_{2}}\] by the plant is shown by arrow____. |
| A. | 1 |
| B. | 2 |
| C. | 3 |
| D. | None |
| Answer» D. None | |
| 2575. |
DIRECTIONS: The questions in this segment consists of two statements, one labelled as "Assertion A" and the other labelled as "Reason R". You are to examine these two statements carefully and decide if the Assertion A and Reason R are individually true and if so, whether the reason is a correct explanation of the assertion. Select your answers to these items using codes given below. Assertion (A): Green colour in leaves help in photosynthesis Reason (R): Photosynthesis results in formation of starch |
| 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. |
| Answer» C. A is true but R is false. | |
| 2576. |
Which of the following is true about parasitic plants?(i) They absorb food from their host. (ii) They compete with the host for sunlight.(iii) They kill the host plant eventually. |
| A. | (i) and (ii) only |
| B. | (i) and (iii) only |
| C. | (ii) and (iii) only |
| D. | (i), (ii) and (iii) |
| Answer» C. (ii) and (iii) only | |
| 2577. |
DIRECTIONS: Read the passage (s) given below and answer the questions that follow. Passage - 2 A new born body has no teeth. Teeth begin to appear when the baby is six to seven months old. By the age of three year children have 20 teeth. An adult has ____ teeth |
| A. | 24 |
| B. | 28 |
| C. | 32 |
| D. | 28 |
| Answer» D. 28 | |
| 2578. |
DIRECTIONS: Read the passage (s) given below and answer the questions that follow. Passage - 1 Our stomach expands when the food entives and contracts when it goes out. Thus the stomach can expand and contract. This is possible because our stomach is made up of |
| A. | Bones |
| B. | blood |
| C. | Muscles |
| D. | iron |
| Answer» D. iron | |
| 2579. |
Absorption |
| A. | is the process by which digested food passes into the blood vessels. |
| B. | is the process by which digested food passes into the blood vessels in the wall of the intestines. |
| C. | both the above are correct. |
| D. | none of the above is correct |
| Answer» C. both the above are correct. | |
| 2580. |
Why are nutrition in animals holozoic? |
| A. | because they depend on plants for food |
| B. | because they are heterotrophs |
| C. | because they can shallow food |
| D. | all the above |
| Answer» E. | |
| 2581. |
As the population of small fish in a lake decreases, the population of large fish that depend on the small fish for food will |
| A. | Reproduce faster |
| B. | Begin to produce their own food |
| C. | Decrease in number |
| D. | Increase in number |
| Answer» D. Increase in number | |
| 2582. |
The inner lining of stomach secretes |
| A. | Mucous |
| B. | Hydrochloric acid |
| C. | Digestive juices |
| D. | all of these |
| Answer» E. | |
| 2583. |
DIRECTION: Carefully observe pictures given below and answer the following questions. In the figure is shown the digestive system of a grass eating animal. The part ?P? shown in figure is called |
| A. | Rumen |
| B. | Cud |
| C. | Stomach |
| D. | None of these |
| Answer» B. Cud | |
| 2584. |
Which of the following helps in digestion in amoeba? |
| A. | Pseudopodia |
| B. | Cytoplasm |
| C. | Nucleus |
| D. | Food vacuole |
| Answer» E. | |
| 2585. |
DIRECTIONS: The questions in this segment consist of two statements, one labeled as "Assertion A" and the other labeled as "Reason R". You are to examine these two statements carefully and decide if the Assertion A and Reason R are individually true and if so, whether the reason is a correct explanation of the assertion. Select your answers to these items using code. Given below. Assertion A: Food pipe runs through neck and chest. Reason R: When food is not accepted by our stomach it is vomited out. |
| 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. |
| Answer» C. A is true but R is false. | |
| 2586. |
DIRECTIONS: Match Column-I with Column-II and select the correct answer using the codes given below the columns. Column-I Column-II (A) Small intestine (p) 7.5 m (B) Large intestine (q) 1.5 m (C) Buccal cavity (r) Part of alimentary canal (D) Ingestion (s) Process of taking food into the body |
| A. | (A) \[\to \] (p), (B) \[\to \] (q), (C) \[\to \] (r), (D) \[\to \] (s) |
| B. | (A) \[\to \] (q), (B) \[\to \] (p), (C) \[\to \] (r), (D) \[\to \] (s) |
| C. | (A) \[\to \] (p), (B) \[\to \] (q), (C) \[\to \] (s), (D) \[\to \] (r) |
| D. | (A) \[\to \] (q), (B) \[\to \] (p), (C) \[\to \] (s), (D) \[\to \] (r) |
| Answer» B. (A) \[\to \] (q), (B) \[\to \] (p), (C) \[\to \] (r), (D) \[\to \] (s) | |
| 2587. |
Given below are the various steps involved in animal nutrition. (i) Assimilation (ii) Ingestion (iii) Absorption (iv) Digestion (v) Egestion Which is the correct sequential order in an animal nutrition? |
| A. | (iii), (ii), (iv), (i), (v) |
| B. | (iii), (i), (iv), (ii), (v) |
| C. | (ii), (iv), (iii), (i), (v) |
| D. | (iii), (iv), (ii), (v), (i) |
| Answer» D. (iii), (iv), (ii), (v), (i) | |
| 2588. |
The food that reaches the lower part of small intestines is |
| A. | Completely digested |
| B. | Partly digested |
| C. | Can?t say |
| D. | All the above are correct |
| Answer» C. Can?t say | |
| 2589. |
Which of the following is the correct description of assimilation? |
| A. | The process of breaking large food molecules into simpler molecules. |
| B. | The process by which undigested food is ejected out of the body. |
| C. | The process by which the digested food carried by the blood is taken in by the cells of the body. |
| D. | Process of inter-exchange of oxygen and carbon dioxide between hemoglobin and the cells of the body. |
| Answer» D. Process of inter-exchange of oxygen and carbon dioxide between hemoglobin and the cells of the body. | |
| 2590. |
Which of the following describes of plaque? |
| A. | It is hard, protective covering on the tooth. |
| B. | It is soft covering of the tooth which is present below the visible part. |
| C. | It is the cavity which contains nerves and blood vessels in a tooth. |
| D. | It is sticky film of food and bacteria near the gums. |
| Answer» E. | |
| 2591. |
Pulp is a soft material in the tooth and it is rich in |
| A. | Starch and sugar |
| B. | Nerves and blood vessels |
| C. | acids |
| D. | cellulose |
| Answer» C. acids | |
| 2592. |
In catties, symbiotic digestion of cellulose occurs in which part of the stomach? |
| A. | Rumen |
| B. | Caecum |
| C. | Duodenum |
| D. | Jejunum |
| Answer» C. Duodenum | |
| 2593. |
Duodenum, Jejunum, ileum are ______ parts. |
| A. | Small Intestine |
| B. | Large Intestine |
| C. | Esophagus?s |
| D. | Stomach |
| Answer» B. Large Intestine | |
| 2594. |
DIRECTIONS: Look at the below picture and answer the given questions. Which letter is pointing to the large intestine (colon)? |
| A. | K |
| B. | d |
| C. | L |
| D. | e |
| Answer» E. | |
| 2595. |
The given figure illustrates the human digestive system. Which labelled part of the human digestive system stores bile juice? |
| A. | P |
| B. | Q |
| C. | R |
| D. | S |
| Answer» C. R | |
| 2596. |
DIRECTIONS: Carefully observe pictures given below and answer the following questions. The diagram below shows a food web. Which three organisms in the food web are competing for the same food resource? |
| A. | carrot, rabbit, and fox |
| B. | grain, bird, and owl |
| C. | fox, owl, and rabbit |
| D. | bird, mouse, and grasshopper |
| Answer» E. | |
| 2597. |
DIRECTIONS: Read the following two statements carefully and choose the correct options. (i) Length of large intestive in more than small intestive. (ii) Pancreas is the largest gland in human body. (iii) Gall Bladder secretes juice into small intestive |
| A. | Statements (i) and (iii) are incorrect but (ii) is correct. |
| B. | Statements (i) and (ii) are incorrect but (iii) is correct. |
| C. | All statements are correct. |
| D. | All statements are incorrect. |
| Answer» E. | |
| 2598. |
DIRECTIONS: The questions in this segment consist of two statements, one labeled as "Assertion A" and the other labeled as "Reason R". You are to examine these two statements carefully and decide if the Assertion A and Reason R are individually true and if so, whether the reason is a correct explanation of the assertion. Select your answers to these items using codes given below. Assertion (A): Food is pushed down the food pipe which runs through the neck and chest Reason (R): The peristaltive movement of the wall of the food pipe is a continuous process. |
| A. | Both A and R is true and R is the correct explanation of A. |
| B. | Both A and R is 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. |
| Answer» B. Both A and R is true but R is not the correct explanation of A. | |
| 2599. |
Water is an inexhaustible, renewable resource, still there is shortage of water at many places of the world. It is because |
| A. | much water available to us is not in the usable form |
| B. | 97.4% of all available water is frozen in glaciers and polar ice caps |
| C. | we cannot make use of water that is present in rivers and lakes |
| D. | we cannot make use of rainwater. |
| Answer» B. 97.4% of all available water is frozen in glaciers and polar ice caps | |
| 2600. |
Read the following statements.(P) The branchy part of a tree above the trunk is known as the ____ of the tree.(Q) The branches of tall trees look like a roof over the other plants. This is known as ___.(R) The is covered with a layer of dead and decaying leaves, fruits, seeds, twigs and herbs.(S) In rainforests, the vegetation that grows under the shade of the canopy is known as the ____.Select the option that correctly fills up the blanks in any two statements. |
| A. | (Q) - Crown; (S) - Forest floor |
| B. | (P) - Crown; (S) - Understorey |
| C. | (Q) - Canopy; (R) - Understorey |
| D. | (P) - Canopy; (R) - Forest floor |
| Answer» C. (Q) - Canopy; (R) - Understorey | |