Related Questions
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4
The given figure shows the parts of flowering plant. Which parts of the given figure were involved in the following functions:
- Storing reserve food material
- Synthesis of plant growth regulators.
- Absorption of water and minerals from the soil.
- Providing a proper anchorage to the plant parts
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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
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
Match the following stem modifications given in column I with their examples given in column II and select the correct combination from the options given below.
(Stem Modifications) | (Found in) |
---|
A. Underground stem | I. Euphorbia |
B. Stem tendril | II. Opuntia |
C. Stem thorns | III. Potato |
D. Flattened stem | IV. Citrus |
E. Fleshy cylindrical stem | V. Cucumber |
A. A I, B II, C III, D V, E IV
B. A II, B III, C IV, D V, E I
C. A III, B IV, C V, D I, E II
D. A III, B V, C IV, D II, E I
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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.
B. X - Corolla; Y - Petals
C. X - Gynoecium; Y - Fruit
D. X - Androecium; Y - Ovary
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4
The region of the root-tip which is involved in the formation of root hairs by epidermal cells is called the
B. region of meristematic activity.
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4
The region of the root-tip whose cells undergo rapid elongation and enlargement and are responsible for the growth of the root in length is called the
C. region of meristematic activity.
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4
Match the following placentation types given in column I with their examples given in column II and choose the correct combination from the options given below.
(Placentation Types) | (Examples) |
---|
A. Basal | I. Dianthus |
B. Free central | II. Pea |
C. Parietal | III. Lemon |
D. Axile | IV. Marigold |
E. Marginal | V. Argemone |
A. A I, B II, C III, D IV, E V
B. A II, B III, C IV, D V, E I
C. A IV, B I, C V, D III, E II
D. A IV, B III, C V, D I, E II
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4
Which one of the following structure is not associated with gynoecium?
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4
The character of flower which is represented by floral formula but not by floral diagram is
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4
It is a proteinous layer and the outer covering of endosperm which separates the embryo. Identify the layer.
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4
The main function(s) of root system is/are
A. absorption of water and minerals from the soil
B. storing reserve food material
C. synthesis of plant growth regulators
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4
Read the following statements and answer the questions.
- 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.
- Ovary is half-inferior.
- Examples are plum, rose and peach.
Which condition of flowers is being described by the above statements ?
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4
Fibrous roots develop in maize from
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A branch in which each node bearing a rossette of leaves and a tuft of roots is found in aquatic plants like _________ and _________.
B. Eichhornia and Hydrilla
D. Pistia and Vallisneria
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4
Main function of leaf is
B. increase the beauty of a tree
D. nerve impulse induction
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4
Statement 1 : A simple leaf has undivided lamina.
Statement 2 : Leaves showing pinnate and palmate venations have various type of incisions.
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 not 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
A sterile stamen is known as
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4
When a flower has both androecium and gynoecium, it is known as__________.
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4
The mature seeds of plants such as gram and peas, possess no endosperm, because
A. these plants are not angiosperms.
B. there is no double fertilization in them.
C. endosperm is not formed in them.
D. endosperm gets used up by the developing embryo during seed development.
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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).
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4
The given figures (A & B) show two types of compound leaves. Choose the option which identity the correct compound leaf and their example (c).
A. A - Pinnately compound leaf, C - Neem
B. A - Palmately compound leaf, C - Neem
C. B- Pinnately compound leaf, C - Silk cotton
D. B- Palmately compound leaf, C - Silk cotton
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4
Identify the inflorescence shown by the given figures A and B.
C. A-Racemose, B-Racemose
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4
Study the following statements and select the correct option
- Buds are present in axil of leaflets of the compound leaf.
- Pulvinus leaf-base is present in some leguminous plants.
- In Alstonia, the petioles expand, become green and synthesize food.
- Opposite phyllotaxy is seen in guava.
A. (ii) and (iv) are correct but (i) and (iii) are incorrect.
B. (i) and (iii) are correct but (ii) and (iv) are incorrect.
C. (i) and (iv) are correct but (ii) and (iii) are incorrect.
D. (ii), (iii) and (iv) are correct but (i) is incorrect.
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4
Which of the following statement(s) is /are correct?
- Many plants belong to family fabaceae are good ornamentals (Tulip, Gloriosa), source of medicine (Aloe) and vegetables (Asparagus).
- The plumule and radicle are enclosed in sheaths which are called coleorhiza and coleoptile respectively.
- A flower having either only stamens or only carpels is unisexual.
- Basal, alternate, linear, exstipulate with parallel venation types of leaves is found in the family liliaceae.
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4
In which of the following plants, a slender lateral branch arises from the base of the main axis and after growing aerially arch downwards to touch the ground?
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4
A scar on the seed coat through which the developing seeds attached to the fruit is called as ________.
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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
The primary roots and its branches constitute the
C. adventitious root system.
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Which is not a stem modification ?