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4

Stem tendrils are found in

A. cucumber

B. pumpkins

C. grapevines

D. all of these

Correct Answer :

D. all of these


Tendrils are spirally coiled, thread - like sensitive structures which develop from axillary buds and can coil around a support and help the plant in climbing. E.g., cucumber, pumpkins, water melon and grapevines.

Related Questions

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4

Which of the following statements are correct?
  1. From the region of elongation, some of the epidermal cells form root hairs.
  2. Pneumatophores are seen in Rhizophora.
  3. Adventitious roots are seen in the banyan tree.
  4. Maize and sugarcane have prop roots.

A. (i) and (iv)

B. (i), (iii) and (iv)

C. (iii) and (iv)

D. (ii) and (iii)

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4

Aleurone layer helps in

A. storage of food in endosperm.

B. protection of embryo.

C. utilization of stored food.

D. all of the above.

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4

Which of the following groups of plants have underground stems?

A. Potato, ginger, turmeric, Euphorbia, zaminkand

B. Potato, ginger, turmeric, zaminkand, Colocasia

C. Potato, Citrus, Opuntia, zaminkand, Colocasia

D. Potato, cucumber, watermelon, zaminkand, Colocasia

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4

Statement-1 : Ginger has a prostrate-growing rhizome.
Statement-2 : Shoot growth is not effected by gravity.

A. Statement-1 and statement-2 are true and Statement-2 is a correct explanation for statement-1.

B. Statement-1 and statement-2 are true but statement-2 is a correct explanation for statement-1.

C. Statement-1 is true and statement-2 is false.

D. Both the statements are false.

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4

Which of the following option shows the correct labelling of the parts of leaf marked as A, B, C and D.
q4

A. A - Lamina, B - Axillary bud, C - Stipule, D - Leaf base

B. A - Lamina, B - Stipule, C - Axillary bud, D - Leaf base

C. A - Lamina, B - Axillary bud, C - Stipule, D - Pedicel

D. A - Leaflet, B - Axillary bud, C - Stipule, D - Leaf base

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4

Which one of the following characteristics is not related to gynoecium?

A. It is the female reproductive part of the flower.

B. It is composed of stamens.

C. Stigma is usually at the tip of the style and is the receptive surface for pollen grains.

D. Each ovary bears one or more ovules attached to a flattened, cushion like placenta.

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4

Read the following statements and answer the questions.
  1. Gynoecium is situated in the centre and other parts of the flower are located on the rim of the thalamus almost at the same level.
  2. Ovary is half-inferior.
  3. Examples are plum, rose and peach.

Which condition of flowers is being described by the above statements ?

A. hypogyny

B. perigyny

C. epigyny

D. none of these

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4

Which of the following statement(s) is/are correct about calyx?

A. Calyx is the outermost whorl of the flower and are called sepals.

B. Sepals are green, leaf like and protect the flower in the bud stage.

C. The calyx may be gamosepalous (sepals free) or polysepalous (sepals united).

D. Both (a) and (b)

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4

Which of the following statements is correct?

A. Imbricate aestivation is found in papilionaceous family.

B. Generally sepals are green, leaf like and protect the flowers in the bud stage.

C. In cymose type of inflorescence, the main axis terminates in a flower, hence is limitless in growth.

D. In axile placentation ovary is one chambered but it becomes two cambered due to formation of the false septum.

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4

Which one of the following structure is not associated with gynoecium?

A. Ovary

B. Style

C. Stigma

D. Filament

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4

Match the column-I containing types of aestivation with their examples given in column-II and choose the correct option.
Column - IColumn-II
(Type of aestivation)(Examples)
A. ValvateI. Cotton
B. TwistedII. Calotropis
C. ImbricateIII. Bean
D. VexillaryIV. Gulmohar

A. A I; B II; C IV; D III

B. A II; B I; C IV; D III

C. A II; B IV; C I; D III

D. A II; B I; C III; D IV

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4

Which of the following is an example of pinnately compound leaf ?

A. Cucumber

B. Papaya

C. Cucurbita

D. Neem

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4

Consider the following statements regarding the root system of angiosperms and choose the correct option given below.
  1. In monocots, the fibrous root system arises from the base of the stem.
  2. The region of elongation is called the root hair region.
  3. In sweet potato, the adventitious roots get swollen and store food.
  4. The stems of maize and sugarcane have supporting roots called prop roots.

A. (i) and (ii) are correct but (iii) and (iv) are wrong.

B. (ii) and (iii) are correct but (i) and (iv) are wrong.

C. (ii) and (iv) are correct but (i) and (iii) are wrong.

D. (i) and (iii) are correct but (ii) and (iv) are wrong.

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4

Fibrous roots develop in maize from

A. upper nodes

B. lower nodes

C. upper internodes

D. none of these

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4

In flower (X), the gynoecium occupies the highest position while the other parts are situated below it. The ovary in such flowers is said to be Y. Identify X and Y and select the correct option.

A. X - Epigynous, Y - Inferior

B. X - Perigynous, Y - Superior

C. X - Hypogynous, Y - Superior

D. X - Perigynous, Y - Half-inferior

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4

Which one of the following characteristics does not belong to parietal placentation?

A. Ovules are borne on central axis.

B. Ovary is one-chambered but it becomes two-chambered due to the formation of false septum.

C. Examples are mustard and Argemone.

D. Both (b) and (c)

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4

Matching colmun I with column II and choose the correct option.
Column IColumn II
A. ColeorhizaI. Grapes
B. Food storing tissueII. Mango
C. Parthenocarpic fruitIII. Maize
D. Single seeded fruitIV. Radicle developing from monocarpellary superior ovary
E. MembranousV. Endosperm seed coat

A. A III, B I, C IV, D II, E V

B. A IV, B II, C V, D I, E III

C. A V, B I, C III, D IV, E II

D. A IV, B V, C I, D II, E III

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4

Which of the following is the green expanded part of leaf with vein and veinlets?

A. Petiole

B. Node

C. Stipule

D. Lamina

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4

The given figure shows a typical structure of monocotyledonous seeds. Identify A, B, C, D and E parts marked in the given figures. 
q13

A. A - Endosperm, B - Embryo, C - Scutellum, D - Coleorhiza, E - Coleoptile

B. A- Embryo, B - Endosperm, C - Scutellum, D - Coleoptile, E - Coleorhiza

C. A - Endosperm, B - Embryo, C - Scutellum, D - Coleoptile, E - Coleorhiza

D. A - Embryo, B - Endosperm, C - Scutellum, D - Coleorhiza, E - Coleoptile

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4

Prop roots of banyan tree are meant for

A. respiration.

B. absorption of water from soil.

C. providing support to big tree.

D. all of the above.

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4

The X is small and situated in a groove at one end of the endosperm. It consists of one large and shield shaped cotyledon known as Y and a short axis with a plumule and a Z. Identify X, Y and Z.

A. X - Scutellum, Y - Embryo, Z - Radicle

B. X - Embryo, Y - Scutellum, Z - Radicle

C. X - Scutellum, Y - Radicle, Z - Embryo

D. X - Radicle, Y - Embryo, Z - Scutellum

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4

Root hairs develop from

A. region of maturation

B. region of elongation

C. region of meristematic activity

D. root cap

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4

Which is not a stem modification ?

A. Rhizome of ginger

B. Corm of Colocasia

C. Pitcher of Nepenthes

D. Tuber of potato

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4

Fibrous root system is found in

A. monocotyledonous plants.

B. dicotyledonous plants.

C. bryophytes.

D. gymnosperms.

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4

Most prominent function of inflorescence is

A. dispersal of seeds.

B. formation of more fruits.

C. formation of pollen grains.

D. dispersal of pollens.

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4

Which of the following represents the floral characters of liliaceae?

A. Six tepals, zygomorphic, six stamens, bilocular ovary, axile placentation.

B. Actinomorphic, polyphyllous, unilocular ovary, axile placentation.

C. Tricorpellary, actinomorphic, polyandrous, superior ovary, axile placentation.

D. Bisexual, zygomorphic, gamophyllous, inferior ovary, marginal placentation.

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4

X is the outermost whorl of the flower and contains Y. Y is green, leaf like and protect the other whorls of the flower. Identify X and Y.

A. X - Calyx; Y - Sepals

B. X - Corolla; Y - Petals

C. X - Gynoecium; Y - Fruit

D. X - Androecium; Y - Ovary

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4

Which of the following statement(s) is/are correct about venation?
(i) The arrangement of veins and the veinlets in the lamina of leaf is called venation.
(ii) Reticulate venation is the characteristic of monocots.
(iii) When the veinlets form a network, the venation is termed as reticulate venation.
(iv) When the veins run parallel to each other, within a lamina, the venation is termed as parallel venation.

A. Only (i)

B. Both (i) and (ii)

C. (i), (iii) and (iv)

D. All of these

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4

Roots develop from parts of the plant other than radicle are called

A. tap roots

B. fibrous roots

C. adventitious roots

D. nodular roots

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4

How many plants in the list given below have marginal placentation?
  1. Mustard
  2. Gram
  3. Tulip
  4. Asparagus
  5. Arhar
  6. Sunhemp
  7. Chilli
  8. Colchicine
  9. Onion
  10. Moong
  11. Pea
  12. Tobacco
  13. Lupin

A. Four

B. Five

C. Six

D. Three