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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.
| 501. |
DIRECTION: Match column I with column II and select the correct answers using the code given below the columns. Column-I Column-II (i) Drumstick, maple (p) sori (sopres) (ii) Xanthium (q) winged seeds (iii) Yeast (r) spiny seeds (iv) Fern (s) Budding |
| A. | (i) \[\to \] (q),(ii) \[\to \] (s),(iii) \[\to \] (p),(iv) \[\to \] (r) |
| B. | (i) \[\to \] (q),(ii) \[\to \] (r),(iii) \[\to \] (s),(iv) \[\to \] (p) |
| C. | (i) \[\to \] (r),(ii) \[\to \] (q),(iii) \[\to \] (s),(iv) \[\to \] (p) |
| D. | (i) \[\to \] (r),(ii) \[\to \] (q),(iii) \[\to \] (p),(iv) \[\to \] (s) |
| Answer» C. (i) \[\to \] (r),(ii) \[\to \] (q),(iii) \[\to \] (s),(iv) \[\to \] (p) | |
| 502. |
DIRECTION: Match column I with column II and select the correct answers using the code given below the columns. Column-I Column-II (i) Spirogyra (A) stem cutting (ii) Potato (B) Leaves (iii) Rose (C) Tuber (iv) Bryophyllum (D) Fragmentation |
| A. | (i) \[\to \] (D),(ii) \[\to \] (C),(iii) \[\to \] (A),(iv) \[\to \] (B) |
| B. | (i) \[\to \] (C),(ii) \[\to \] (A),(iii) \[\to \] (B),(iv) \[\to \] (D) |
| C. | (i) \[\to \] (B),(ii) \[\to \] (A),(iii) \[\to \] (C),(iv) \[\to \] (D) |
| D. | (i) \[\to \] (D),(ii) \[\to \] (A),(iii) \[\to \] (B),(iv) \[\to \] (C) |
| Answer» B. (i) \[\to \] (C),(ii) \[\to \] (A),(iii) \[\to \] (B),(iv) \[\to \] (D) | |
| 503. |
When you add yeast to dough, it rises beacuse: |
| A. | yeast cells reproduce by budding |
| B. | yeast cells form colonies |
| C. | of the bulk of new yeast cells |
| D. | the rapidly reproducing yeast cells release \[\text{C}{{\text{O}}_{\text{2}}}\] due to anerobic respiration |
| Answer» E. | |
| 504. |
Flowers which have stamens and pistils are called: |
| A. | Complete flowers |
| B. | Incomplete flowers |
| C. | Unisexual flowers |
| D. | Homosexual flowers |
| Answer» B. Incomplete flowers | |
| 505. |
Which of the following is a complete flower? |
| A. | Papaya |
| B. | Cucumber |
| C. | Bitter gourd |
| D. | Hibiscus |
| Answer» E. | |
| 506. |
The mode of reproduction shown by fuzzy and greyish growth on bread is |
| A. | Spore formation |
| B. | Budding |
| C. | Binary fission |
| D. | Regeneration |
| Answer» B. Budding | |
| 507. |
Pollination is |
| A. | Similar to fertilization of animals |
| B. | shedding of pollen from anthers |
| C. | transfer of pollen from anther to stigma |
| D. | None of these |
| Answer» D. None of these | |
| 508. |
It is a female gamete and is formed in an ovule. It is |
| A. | ovary |
| B. | egg |
| C. | zygote |
| D. | none of these |
| Answer» C. zygote | |
| 509. |
These are asexual reproductive bodies which are covered by a hard protective coating and they can survive for a long time. The plants of moss and ferns reproduce by means of these bodies. These are |
| A. | stamen |
| B. | stigma |
| C. | spores |
| D. | none of these |
| Answer» D. none of these | |
| 510. |
In this plant the buds are in the margin of leaves. If leaf of this plant falls on a moist soil, each bud can give rise to a new plant. This plant is |
| A. | Bryophyllum |
| B. | Sprout leaf plant |
| C. | both (a) and (b) |
| D. | algae |
| Answer» D. algae | |
| 511. |
These are the buds in the axil of leaves which develop into shoot. These are called |
| A. | flower buds |
| B. | vegetative buds |
| C. | both the above are correct |
| D. | none of these is correct |
| Answer» C. both the above are correct | |
| 512. |
Sexual reproduction is given an advantage over asexual reproduction because |
| A. | it produces more offspring |
| B. | it preserves parental genotype |
| C. | it ensures survival of species |
| D. | it increases variations among the offspring of an individual. |
| Answer» E. | |
| 513. |
The pollen grain represents a |
| A. | male sporophyte |
| B. | male gametophyte |
| C. | female sporophyte |
| D. | female gametophyte |
| Answer» C. female sporophyte | |
| 514. |
Asexual reproduction is also known as |
| A. | Somatic reproduction |
| B. | Somatogenic reproduction |
| C. | Gametogenesis |
| D. | None of these |
| Answer» C. Gametogenesis | |
| 515. |
Development of a fruit without pollination or fertilization is called_______. |
| A. | germination |
| B. | parthenocarpy |
| C. | embryogeny |
| D. | reproduction |
| Answer» C. embryogeny | |
| 516. |
Parthenocarpic fruit is found in |
| A. | pineapple |
| B. | mango |
| C. | orange |
| D. | plum |
| Answer» B. mango | |
| 517. |
__________ pollinated flowers are colorful and fragrant and have nectaries. |
| A. | insects |
| B. | wind |
| C. | water |
| D. | animals |
| Answer» B. wind | |
| 518. |
A spore producing plant is |
| A. | rose |
| B. | potato |
| C. | bread mould |
| D. | ginger |
| Answer» D. ginger | |
| 519. |
Study the given table and select the correct option. Methods of reproduction Examples Budding P Spore formation Q Fragmentation R Vegetative propagation S |
| A. | P Q R S Dahlia Spirogyra Rhizopus Begonia |
| B. | P Q R S Yeast Rhizopus Spirogyra Begonia |
| C. | P Q R S Spirogyra Rhizopus Begonia Dahlia |
| D. | P Q R S Dahlia Yeast Spirogyra Rhizopus |
| Answer» C. P Q R S Spirogyra Rhizopus Begonia Dahlia | |
| 520. |
Vegetative propagation by stem can be seen in |
| A. | potato |
| B. | ginger |
| C. | dahlia |
| D. | both (a) & (b) |
| Answer» E. | |
| 521. |
Wind pollinated flowers are called |
| A. | Entomophilous |
| B. | Anemophilous |
| C. | Hydrophilous |
| D. | Chiropterophilous |
| Answer» D. Chiropterophilous | |
| 522. |
DIRECTIONS: Carefully observe pictures given below and answer the following questions. In the carpel, the male gamete makes its way to the female gamete bypassing down through the _________. |
| A. | Ovary |
| B. | Pollen tube |
| C. | Filament |
| D. | Sepal |
| Answer» C. Filament | |
| 523. |
DIRECTIONS: Carefully observe pictures given below and answer the following questions. In an experiment to determine the conditions necessary for germination, one of the test tubes had seeds placed under cooled boiled water. Why was the water boiled? |
| A. | To remove oxygen from the water. |
| B. | To kill germs in the water. |
| C. | To get the water to a suitable temperature for germination. |
| D. | To remove carbon dioxide from the water. |
| Answer» B. To kill germs in the water. | |
| 524. |
DIRECTIONS: Carefully observe pictures given below and answer the following questions. Look at the following image A wind pollinated flower will have: |
| A. | large anthers, coloured petals and produce nectar |
| B. | large petals, small anthers and produce scent |
| C. | small petals, nectar and produce scent |
| D. | small petals, large anthers and have a feathery stigma |
| Answer» E. | |
| 525. |
Directions: Read the following two statements carefully and choose the correct option. (i) Flowers pollinated by insects are colourless and small in size (ii) Seeds with spines are dispersed by humans and animals |
| A. | Statement (i) is correct while statement (ii) is incorrect. |
| B. | Statement (ii) is correct while statement (i) is incorrect. |
| C. | Both statements are correct. |
| D. | Both statements are incorrect. |
| Answer» C. Both statements are correct. | |
| 526. |
Directions: Read the following two statements carefully and choose the correct option. (i) After fertilization, the ovary becomes the fruit and ovules the seeds. (ii) Study of pollen grains is called palynology |
| A. | Statement (i) is correct while statement (ii) is incorrect. |
| B. | Statement (ii) is correct while statement (i) is incorrect. |
| C. | Both statements are correct. |
| D. | Both statements are incorrect. |
| Answer» D. Both statements are incorrect. | |
| 527. |
Directions: Read the following two statements carefully and choose the correct option. (i) The integuments leave a small opening called Chalaza (ii) The basal part of ovule is called micropyle. |
| A. | Statement (i) is correct while statement (ii) is incorrect. |
| B. | Statement (ii) is correct while statement (i) is incorrect. |
| C. | Both statements are correct. |
| D. | Both statements are incorrect. |
| Answer» E. | |
| 528. |
DIRECTIONS: The questions in this segment consists of two statements, one labeled 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): Moringa seeds have wings. Reason (R): Moringa seeds are dispersed by wind. |
| 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» B. Both A and R are true but R is not the correct explanation of A. | |
| 529. |
DIRECTIONS: Read the passage (s) given below and answer the questions that follow. Passage - 4 When an insect sits on the flower of a plant then some particles from the little stalks in the flowers sticks to its body when this insect now sits on the flower of another plant, the particles get deposited in the other flower. Which of the following steps will occur first after the deposition of particles? |
| A. | development of pollen tube |
| B. | fusion of gametes |
| C. | formation of zygote |
| D. | development of fruits |
| Answer» B. fusion of gametes | |
| 530. |
DIRECTIONS: The questions in this segment consists of two statements, one labeled 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): A stamen has 2 parts. Reason (R): Filament and anther are parts of a stamen. |
| 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» B. Both A and R are true but R is not the correct explanation of A. | |
| 531. |
DIRECTIONS: Read the passage (s) given below and answer the questions that follow. Passage - 4 When an insect sits on the flower of a plant then some particles from the little stalks in the flowers sticks to its body when this insect now sits on the flower of another plant, the particles get deposited in the other flower. Which phenomenon is described here? |
| A. | fertilization |
| B. | fusion of gametes |
| C. | germination |
| D. | pollination |
| Answer» E. | |
| 532. |
DIRECTIONS: Read the passage (s) given below and answer the questions that follow. Passage - 4 When an insect sits on the flower of a plant then some particles from the little stalks in the flowers sticks to its body when this insect now sits on the flower of another plant, the particles get deposited in the other flower. What are these particles? |
| A. | Rector |
| B. | Pollen |
| C. | Dust |
| D. | Honey |
| Answer» C. Dust | |
| 533. |
DIRECTIONS: Read the passage (s) given below and answer the questions that follow. Passage - 3 A thick underground stem of a plant which has stored food has a number of points on it, when the old stem of this plant is planted in the soil, then each point on its surface grows into a new plant. Which of the following could be the example of underground stem? |
| A. | Onion |
| B. | Potato |
| C. | Radish |
| D. | Carrot |
| Answer» C. Radish | |
| 534. |
DIRECTIONS: Read the passage (s) given below and answer the questions that follow. Passage - 3 A thick underground stem of a plant which has stored food has a number of points on it, when the old stem of this plant is planted in the soil, then each point on its surface grows into a new plant. What are the points present on the stem known as? |
| A. | Nodes |
| B. | buds |
| C. | Eyes |
| D. | roots |
| Answer» D. roots | |
| 535. |
The flower which contain either pistil or stamen is called |
| A. | Unisexual flowers |
| B. | Asexual flowers |
| C. | Bisexual flowers |
| D. | None of these |
| Answer» B. Asexual flowers | |
| 536. |
DIRECTIONS: Read the passage (s) given below and answer the questions that follow. Passage - 2 A filamentous alga X is found in ponds, lakes and streams. The filament of this alga breaks into two (or more) pieces on maturing and each piece then grows to become a new alga What is the method of reproduction described here? |
| A. | Budding |
| B. | Fragmentation |
| C. | Binary fission s |
| D. | Regeneration |
| Answer» C. Binary fission s | |
| 537. |
DIRECTIONS: Read the passage (s) given below and answer the questions that follow. Passage - 2 A filamentous alga X is found in ponds, lakes and streams. The filament of this alga breaks into two (or more) pieces on maturing and each piece then grows to become a new alga Identify the alga from the following: |
| A. | Paramedum |
| B. | Hydra |
| C. | Spirogyra |
| D. | Yeast |
| Answer» D. Yeast | |
| 538. |
DIRECTIONS: Read the passage (s) given below and answer the questions that follow. Passage - 1 The flowers which contain either only the pistil or only the stamens are called unisexual flowers. The flowers which contain both stamen and pistil are called bisexual flowers. Anther contains pollen grains which produce |
| A. | ovule |
| B. | male gametes |
| C. | female gametes |
| D. | none of these |
| Answer» C. female gametes | |
| 539. |
DIRECTIONS: Read the passage (s) given below and answer the questions that follow. Passage - 1 The flowers which contain either only the pistil or only the stamens are called unisexual flowers. The flowers which contain both stamen and pistil are called bisexual flowers. Which of the following is a unisexual flower? |
| A. | mustard |
| B. | petunia |
| C. | corn |
| D. | none of these |
| Answer» D. none of these | |
| 540. |
DIRECTIONS: Match column I with column II and select the correct answers using the code given below the columns Column-I Column-II (A) Coastor (p) Water (B) Lotus (q) Animals (C) Xanthium (r) Explosion (D) Maple (s) Wind |
| A. | (A) \[\to \] (s),(B) \[\to \] (p),(C) \[\to \] (r),(D) \[\to \] (q) |
| B. | (A) \[\to \] (r),(B) \[\to \] (p),(C) \[\to \] (q),(D) \[\to \] (s) |
| C. | (A) \[\to \] (r),(B) \[\to \] (p),(C) \[\to \] (s),(D) \[\to \] (q) |
| D. | (A) \[\to \] (q),(B) \[\to \] (r),(C) \[\to \] (p),(D) \[\to \] (s) |
| Answer» C. (A) \[\to \] (r),(B) \[\to \] (p),(C) \[\to \] (s),(D) \[\to \] (q) | |
| 541. |
DIRECTIONS: Match column I with column II and select the correct answers using the code given below the columns Column-I Column-II (A) Pollen (p) Calyx (B) Eggs (q) Corolla (C) Sepals (r) Ovary (D) Petals (s) Anther |
| A. | (A) \[\to \] (s),(B) \[\to \] (r),(C) \[\to \] (p),(D) \[\to \] (q) |
| B. | (A) \[\to \] (r),(B) \[\to \] (s),(C) \[\to \] (q),(D) \[\to \] (p) |
| C. | (A) \[\to \] (s),(B) \[\to \] (r),(C) \[\to \] (q),(D) \[\to \] (p) |
| D. | (A) \[\to \] (r),(B) \[\to \] (s),(C) \[\to \] (p),(D) \[\to \] (q) |
| Answer» B. (A) \[\to \] (r),(B) \[\to \] (s),(C) \[\to \] (q),(D) \[\to \] (p) | |
| 542. |
DIRECTIONS: Match column I with column II and select the correct answers using the code given below the columns Column-I Column-II (A) Mango (p) Foliar buds (B) Rhizopus (q) Bulb (C) Begonia (r) Grafting (D) Onion (s) Spore |
| A. | (A) \[\to \] (q),(B) \[\to \] (p),(C) \[\to \] (r),(D) \[\to \] (s) |
| B. | (A) \[\to \] (r),(B) \[\to \] (p),(C) \[\to \] (q),(D) \[\to \] (s) |
| C. | (A) \[\to \] (r),(B) \[\to \] (s),(C) \[\to \] (p),(D) \[\to \] (q) |
| D. | (A) \[\to \] (q),(B) \[\to \] (r),(C) \[\to \] (s),(D) \[\to \] (p) |
| Answer» D. (A) \[\to \] (q),(B) \[\to \] (r),(C) \[\to \] (s),(D) \[\to \] (p) | |
| 543. |
Seeds of poppy are dispersed by |
| A. | wind |
| B. | water |
| C. | animals |
| D. | explosion |
| Answer» B. water | |
| 544. |
The cell which is formed after fusion of gametes is called _________. |
| A. | spore |
| B. | embryo |
| C. | pistil |
| D. | zygote |
| Answer» E. | |
| 545. |
Refer to the given figure. Bees that collect nectar from the flower help carry X to other places. Which part of the flower should the bees touch to collect X? |
| A. | P |
| B. | Q |
| C. | R |
| D. | S |
| Answer» B. Q | |
| 546. |
Seeds with looks are dispersed by |
| A. | water |
| B. | wind |
| C. | animals |
| D. | explosion |
| Answer» D. explosion | |
| 547. |
Stigma is sticky |
| A. | to produce scents to attract birds and insects |
| B. | to hold pollen grains strongly |
| C. | there is no known function |
| D. | none of these |
| Answer» C. there is no known function | |
| 548. |
Which of the following grow from modified roots? |
| A. | Onion |
| B. | Radish |
| C. | Begonia |
| D. | Potato |
| Answer» C. Begonia | |
| 549. |
In potatoes new plant grow from |
| A. | bulbs of modified stems |
| B. | buds on leaflets |
| C. | eyes of modified stems |
| D. | modified roots |
| Answer» D. modified roots | |
| 550. |
Onions and gladioli grow from |
| A. | bulbs |
| B. | roots |
| C. | spores |
| D. | buds on leaf margin |
| Answer» C. spores | |