STD 12 - 1. sexual reproduction in flowering plants — NEET STD 11 Science — Question

Root hairs are found

Which of the following simple tissues form soft parts of a plant body

When the inner half of the oospore after the first division develops into an embryo and outer half develops into suspensor. This type of development is called

In an ecosystem decomposer include

Which of the following statements are incorrect for aerobic respiration ?
(i) It is most common in higher organisms.
(ii) It take place within the mitochondria
(iii) The complete oxidation of pyruvate by the stepwise removal of all the hydrogen atoms, leaving three molecules of CO₂ takes place in the matrix of the mitochondria.
(iv) The passing on of the electrons removed as part of the hydrogen atoms to molecular CO₂
(v) Synthesis of ATP takes place in the inner membrane of the mitochondria.
(vi) Pyruvate after enters mitochondrial matrix undergoes oxidative decarboxylation by a complex set of reactions catalysed by pyruvic dehydrogenase.
(vii) The reactions catalysed by pyruvic dehydrogenase require the participation of several coenzymes, including FADH⁺ and coenzyme A.

In angiosperm, the haploid, diploid and triploid structures of a fertilized embryo sac sequentially are :

Lignin is the important constituent in the cell wall of

The chief component of bacterial cell wall is

Efficiency index in the exponential phase of geometrical growth is the ability of plants to produce.