MCQOPTIONS
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MCQOPTIONS
This section includes 1061 Mcqs, each offering curated multiple-choice questions to sharpen your 4th Class knowledge and support exam preparation. Choose a topic below to get started.
| 301. |
The photograph below shows burdock seeds. The seeds are inside a structure within, sharp hooks. These seeds will most likely be dispersed when they _______. |
| A. | are eaten by animals |
| B. | attach to an animal's fur |
| C. | germinate in the soil |
| D. | develop in the water |
| Answer» C. germinate in the soil | |
| 302. |
The Madhubani paintings are made out of paste of powdered _______. |
| A. | Wheat |
| B. | Rice |
| C. | Corn |
| D. | maize |
| Answer» C. Corn | |
| 303. |
Trees start as seeds and grow into mature trees that produce more seeds. This pattern represents a _______. |
| A. | Food chain |
| B. | Life cycle |
| C. | Food supply |
| D. | Life span |
| Answer» C. Food supply | |
| 304. |
Study the given flow chart showing three types of water plant. Some of their features are given below. Select the correct match of the water plants with their respective features. Features:(i) They have narrow thin leaves with no stomata.(ii) Their bodies are like a sponge and have empty spaces filled with air.(iii) They have plate-like leaves which have stomata on the upper side. |
| A. | X - (i), Y - (iii) |
| B. | Y - (ii), Z - (i) |
| C. | X - (iii), Z - (ii) |
| D. | X - (ii), Y - (iii), Z - (i) |
| Answer» E. | |
| 305. |
Which of the following is not an edible seed? |
| A. | Wheat |
| B. | Maize |
| C. | Rice |
| D. | Oats |
| E. | None of these |
| Answer» F. | |
| 306. |
Mangrove trees have ____ roots. |
| A. | fixed |
| B. | floating |
| C. | breathing |
| D. | under water |
| Answer» D. under water | |
| 307. |
A person who sells flowers is called _______. |
| A. | Postman |
| B. | Florist |
| C. | Milkman |
| D. | Flower man |
| Answer» C. Milkman | |
| 308. |
Plants prepare their food in the presence of sunlight which is trapped by: |
| A. | Stem |
| B. | Root |
| C. | Flower |
| D. | Chlorophyll |
| E. | None of these |
| Answer» E. None of these | |
| 309. |
Which of the following sequence shows the correct order of stages in a plants life? |
| A. | \[\text{Young plant}\to \text{seed}\to \text{adult plant},\] |
| B. | \[\text{seed}\to \text{adult plant}\to \text{young plant}.\] |
| C. | \[\text{adult plant}\to \text{young plant}\to \text{seed}.\] |
| D. | \[\text{seed}\to \text{young plant}\to \text{adult plant}.\] |
| Answer» E. | |
| 310. |
The following table shows some information on four plants, (a), (b), (c) and (d). A tick () indicates that the plant shows that particular characteristic. (a) (b) (c) (d) Bears Grows in water Based on the information above, which letter, W, X, Y or Z, best represent plants (c) and (d)? |
| A. | Plant (c) Plant (d) W X |
| B. | Plant (c) Plant (d) X Y |
| C. | Plant (c) Plant (d) Y Z |
| D. | Plant (c) Plant (d) Z W |
| Answer» B. Plant (c) Plant (d) X Y | |
| 311. |
Which one among the following is a flower that is edible? |
| A. | Tomato |
| B. | Potato |
| C. | Broccoli |
| D. | Spinach |
| E. | None of these |
| Answer» D. Spinach | |
| 312. |
Which flowers blooms only at night? |
| A. | Morning glory |
| B. | Evening primrose |
| C. | Sunflower |
| D. | None of these |
| Answer» C. Sunflower | |
| 313. |
In which of the following plants, leaves are not the edible part for humans? |
| A. | Sugarcane |
| B. | Spinach |
| C. | Coriander |
| D. | Mint |
| E. | None of these |
| Answer» B. Spinach | |
| 314. |
Which of the following flowers grows in wild? |
| A. | Tulip |
| B. | Rose |
| C. | Floss flower |
| D. | None of these |
| Answer» D. None of these | |
| 315. |
Which among the following is a stem? |
| A. | Cauliflower |
| B. | Ginger |
| C. | Potato |
| D. | Both [b] and [c] |
| E. | None of these |
| Answer» E. None of these | |
| 316. |
Which of the following are provided by plants? |
| A. | Fruits |
| B. | Shade |
| C. | Shelter for birds |
| D. | All of these |
| Answer» E. | |
| 317. |
Which one among the following is formed by double pipeline of cells? |
| A. | Leaf |
| B. | Main Vein |
| C. | Stem |
| D. | Root |
| E. | None of these |
| Answer» C. Stem | |
| 318. |
The main purpose of flower is to provide ______ |
| A. | Support |
| B. | Water |
| C. | Seeds |
| D. | Food |
| Answer» D. Food | |
| 319. |
Manoj crossed out mushroom from the group given below because he felt that it did not belong there. Which of the following statements support Manoj's conclusion? a. Mushroom is a plant while the rest are not.b. Mushroom is a fungus while the rest are not.c. Mushroom feeds on decaying things while the rest do not.d. Mushroom cannot make its own food while the rest can. |
| A. | b and c only |
| B. | a, b and d only |
| C. | a, c and d only |
| D. | b, c and d only |
| Answer» E. | |
| 320. |
The given graph shows different levels of oxygen in the air at different times in a park. Which point (W, X, Y or Z) on the graph, shows the level of oxygen in the air at night? |
| A. | W |
| B. | X |
| C. | Y |
| D. | Z |
| Answer» D. Z | |
| 321. |
Chlorophyll is a _______ coloured pigment present in the leaves of the plants. |
| A. | Blue |
| B. | Green |
| C. | Orange |
| D. | Red |
| E. | None of these |
| Answer» C. Orange | |
| 322. |
The structures X shown in the picture are found in plants growing in ___ areas and are a modification of ____. |
| A. | Marshy, Stem |
| B. | Desert, Root |
| C. | Marshy, Root |
| D. | Desert, Stem |
| Answer» D. Desert, Stem | |
| 323. |
When iodine is added to a starch solution, the color is changed to |
| A. | blue black. |
| B. | yellow. |
| C. | green. |
| D. | reddish brown. |
| Answer» B. yellow. | |
| 324. |
Abhi covered a leaf of a potted plant and kept the plant under sunlight for a few days and then tested it with iodine solution for the presence of starch in it. The colour of the covered leaf did not turn blue-black. What does this indicate? |
| A. | The black cover absorbed all the starch present in the leaf. |
| B. | Iodine solution does not work with black covers. |
| C. | Starch is evaporated from the leaves. |
| D. | Starch is prepared only in the presence of sun light. |
| Answer» E. | |
| 325. |
The leaves of plants are green because |
| A. | they are formed from green coloured seeds. |
| B. | they absorb green liquid. |
| C. | of the presence of a green pigment called chlorophyll. |
| D. | of the presence of the network of veins. |
| Answer» D. of the presence of the network of veins. | |
| 326. |
Harish wants to test the presence of starch in a leaf. Given below are the in striations to conduct the experiment. Which of the following step is NOT necessary? |
| A. | Boil the leaf first in water and then in alcohol. |
| B. | Wash the bleached leaf. |
| C. | Heat the leaf on a hot flame. |
| D. | Add a few drops of iodine solution to the bleached leave. |
| Answer» D. Add a few drops of iodine solution to the bleached leave. | |
| 327. |
During respiration, plants use ________ gas and release ________ gas. |
| A. | carbon dioxide, oxygen |
| B. | oxygen, carbon dioxide |
| C. | oxygen, nitrogen |
| D. | nitrogen, oxygen |
| Answer» C. oxygen, nitrogen | |
| 328. |
Study the figure given here and identify gases X and Y. |
| A. | X - oxygen, Y - carbon dioxide |
| B. | X - carbon dioxide, Y ? oxygen |
| C. | X - nitrogen, Y ? hydrogen |
| D. | X - hydrogen, Y ? nitrogen |
| Answer» C. X - nitrogen, Y ? hydrogen | |
| 329. |
In radish, food is stored in |
| A. | leaves. |
| B. | stems. |
| C. | roots. |
| D. | flowers. |
| Answer» D. flowers. | |
| 330. |
Which of the following structures of plant exchanges gases? |
| A. | Buds |
| B. | Fruits |
| C. | Leaves |
| D. | Flowers |
| Answer» D. Flowers | |
| 331. |
Which of these is of great importance in nature as it helps plants to make their own food in the presence of sunlight? |
| A. | Oxygen |
| B. | Chlorophyll |
| C. | Carbon monoxide |
| D. | Iodine solution |
| Answer» C. Carbon monoxide | |
| 332. |
Match the following and select the correct answer. Column-I Column-II p. Ginger i. Leaf q. Radish ii. Seed r. Spinach iii. Root s. Rice iv. Stem |
| A. | \[p-i,q-iv,\text{ }r-ii,s-iii\] |
| B. | \[p-iv,\text{ }q-iii,\text{ }r-i,\text{ }s-ii\] |
| C. | \[p-i,\text{ }q-ii,\text{ }r-iii,\text{ }s-iv\] |
| D. | \[p-iii,\text{ }q-ii,\text{ }r-iv,\text{ }s-i\] |
| Answer» C. \[p-i,\text{ }q-ii,\text{ }r-iii,\text{ }s-iv\] | |
| 333. |
The figure given below represents a process that takes place in the presence of sunlight. Which of the following gases is released during this process? |
| A. | Hydrogen |
| B. | Carbon dioxide |
| C. | Oxygen |
| D. | Nitrogen |
| Answer» D. Nitrogen | |
| 334. |
Which of the following are produced by plants during the process of photosynthesis? (i) Oxygen (ii) Carbon dioxide (iii) Sugar |
| A. | Only (i) and (ii) |
| B. | Only (i) and (iii) |
| C. | Only (ii) and (iii) |
| D. | (i), (ii) and (iii) |
| Answer» C. Only (ii) and (iii) | |
| 335. |
Which part of the papaya tree conducts water and food to the plant? |
| A. | P |
| B. | Q |
| C. | R |
| D. | S |
| Answer» D. S | |
| 336. |
In which of the following processes, the release of oxygen by plants takes place? |
| A. | Respiration |
| B. | Digestion |
| C. | Reproduction |
| D. | Photosynthesis |
| Answer» E. | |
| 337. |
Which of the following is the main function of the part labelled 'R' in the figure given below? |
| A. | Provides support |
| B. | Synthesises food |
| C. | Produces seeds |
| D. | Absorbs water |
| Answer» B. Synthesises food | |
| 338. |
Chlorophyll is a green pigment found in leaves. It is important to the green plants because it |
| A. | helps the plant in reproduction. |
| B. | traps nitrogen in the air. |
| C. | traps light energy from the sun. |
| D. | absorbs water and mineral salts. |
| Answer» D. absorbs water and mineral salts. | |
| 339. |
Where does most of the water needed for photosynthesis come from? |
| A. | From air through the tiny pores in the leaf. |
| B. | From the soil through the roots of the plant. |
| C. | As a result of respiration within the leaf. |
| D. | From water vapour in the air. |
| Answer» C. As a result of respiration within the leaf. | |
| 340. |
The figure given below shows the result of an experiment. The experiment shows that the roots respond to |
| A. | water. |
| B. | touch. |
| C. | gravity. |
| D. | sunlight. |
| Answer» B. touch. | |
| 341. |
Which of the following are the basic needs of the figure given below? |
| A. | Food and air only |
| B. | Food and water only |
| C. | Air, water and food only |
| D. | Air, water and sunlight |
| Answer» E. | |
| 342. |
The figure given below shows an experiment. The plant is responding to |
| A. | touch. |
| B. | sunlight |
| C. | gravity. |
| D. | water. |
| Answer» C. gravity. | |
| 343. |
During photosynthesis, plants absorb ________ gas and release _______gas. |
| A. | carbon dioxide, oxygen |
| B. | oxygen, carbon dioxide |
| C. | oxygen, nitrogen |
| D. | nitrogen, oxygen |
| Answer» B. oxygen, carbon dioxide | |
| 344. |
Which of the following parts of a cactus plant performs photosynthesis? |
| A. | Spines |
| B. | Stem |
| C. | Roots |
| D. | Leaves |
| Answer» C. Roots | |
| 345. |
The diagram below shows the cross- section of a papaya fruit. Under suitable conditions, which part of the papaya (P, Q, R or S) will grow into a new plant? |
| A. | P |
| B. | Q |
| C. | R |
| D. | S |
| Answer» D. S | |
| 346. |
Read the description below. X supports the plant, it helps in the transportation of food, water and mineral salts, Which of these parts of the plant matches the above description about X? |
| A. | Root |
| B. | Stem |
| C. | Branch |
| D. | Leaf |
| Answer» C. Branch | |
| 347. |
The diagram given below shows a plant. The arrows in the diagram show the path taken by _____. |
| A. | Food |
| B. | Sunlight |
| C. | Water |
| D. | Carbon dioxide |
| Answer» B. Sunlight | |
| 348. |
Look carefully at the diagram of the plant given below. What do the arrows indicate? (i) Water (ii) Mineral salts (iii) Oxygen (iv) Sugar |
| A. | Only (i) and (ii) |
| B. | Only (iii) and (iv) |
| C. | Only (i), (ii) and (iii) |
| D. | (i), (ii), (iii) and (iv) |
| Answer» B. Only (iii) and (iv) | |
| 349. |
I anchor the plant to the ground. I absorb water and mineral salts from the soil. Who am I? |
| A. | Root |
| B. | Stem |
| C. | Leaf |
| D. | Flower |
| Answer» B. Stem | |
| 350. |
Study the figure given below and answer the questions. Which of these parts of the plant is also referred to as a sugar-making factory? |
| A. | I |
| B. | II |
| C. | III |
| D. | IV |
| Answer» B. II | |