STD 12 - 13. biodiversity and conservation — NEET STD 11 Science — Question

Choose incorrect sentence for glycolysis.

The most important function of inflorescence is to help in

The pyramid that cannot be inverted in a stable ecosystem, is pyramid of

Chlorophyll containing fleshy cylindrical structures found in Euphorbia are modified

Which of the following does not require carrier molecules during transport through cell membranes

Gymnosperms do not have

Mark the given statements True (T) or False (F).
(i) Any sexually reproducing organism starts its life cycle from a single-celled zygote.
(ii) The stages through which a cell passed from one division to the next is called cell cycle.
(iii) Yeast progresses through the cell cycle in 190 minute.
(iv) The cell cycle is divided into two phase interphase and M-Phase.
(v) Nuclear division is known as karyokinesis while cytoplasm division is known as cytokinesis.
(vi) In cell cycle, the resting phase during which cell is preparing for cell division is called interphase.
(vii) G₂ phase of M-phase is period when cell grows and carries out normal metabolism.
(viii) During S phase of interphase, amount of DNA per cell doubles.
(ix) If the cell has 2n number of chromosome at G₁ then number of chromosome after S phase will be 4n.
(x) G₀ phase of cell cycle is called quiescent stage.
(xi) During prophase phase of M-phase of cell cycle, duplicated centriole begins to move towards metaphase plate.
(xii) Kinetochores structure on surface of centromere serve as the sites of attachment of spindle fibres to the chromosome.
Choose the correct option given below :-

Which of the following causes delaying of senescence