STD 11 - 12. Respiration in plants — NEET STD 11 Science — Question

Cellulose, starch and glycogen are the polysaccharides having.......monosaccharide unit:

Pigments present in Ulothrix are

Read the following and choose the option with all incorrect statements.
(i) In the hypogynous flower the gynoecium occupies the highest position while the other parts are situated below it
(ii) In epigynous flowers, the margin of thalamus grows upwards enclosing the ovary partially and getting fused with it, the other parts of flower arise above the ovary.
(iii) In hypogynous flower ovary is said to be superior.
(iv) In plum, rose and peach; flower is epigynous and ovary is said to be inferior
(v) The mode of arrangement of sepals or petals in floral bud with respect to the other members of the same whorl is known as aestivation.
(vi) When sepals or petals in a whorl just touch one another at the margin, without overlapping as in Calotropis, it is said to be valvate.
(vii) If the margins of sepals or petals overlap one another but not in any particular direction as in Cassia and gulmohur, the aestivation is called imbricate.
(viii) A fertile stamen is called staminode.
(ix) When stamens are attached to the petals, they are epipetalous as in lilly, or epiphyllous when attached to the perianth as in the flowers of brinjal.
(x) The stamens may be united into one bunch or one bundle called monoadelphous as in china rose.
(xi) A carpel consists of three parts namely stigma, style and ovary.
(xii) The stigma is usually at the tip of the Style and is the receptive surface for pollen grains.
(xiii) Each ovary bears one or more ovules attached to a flattened, cushion-like placenta.
(xiv) When more than one carpel is present, they may be free and are called syncarpous.
(xv) After fertilization, the ovules develop into seeds and the ovary matures into a fruit.

Primary plant body is made up of

Which of the following is true for auxin ?
(i) They help to prevent fruit and leaf drop at early stages but promote the abscission of older mature leaves and fruits.
(ii) Auxins shows apical dominance and it applied in tea plantations, hedge-making.
(iii) NAA (naphthalene acetic acid) and 2, 4-D (2, 4-dichlorophenoxyacetic acid) are synthetic auxins.
(iv) Auxins also induce parthenocarpy, e.g., in tomatoes.
(v) 2,4-D, widely used dicotyledonous herbicides.
(vi) 2, 4-D is used to prepare weed-free lawns by gardeners.
(vii) Auxin also controls xylem differentiation and helps in cell division.

The respiratory quotient during cellular respiration would depend on the

Which of the following shows the absence of cytoplasmic streaming