STD 11 - 8. Cell the unit of life — NEET STD 11 Science — Question

Sporangia and spore bearing leaf in fern is called as

Oxidative phosphorylation occurs during the process of

The region or part of root that increases the surface area for water absorption is

Phototropic curvature is the result of uneven distribution of

Which of the following is not correct for photoperiodism ?
(i) Flowering response of plants to periods of day/night is termed photoperiodism.
(ii) Long day plants require the exposure to light for a period exceeding a well defined critical duration for flowering.
(iii) Short day plants must be exposed to light for a period less than this critical duration before the flowering is initiated in them.
(iv) The critical duration is same for different plants.
(v) Day-neutral plants not have any correlation between exposure to light duration and induction of flowering response.
(vi) Duration of light period and duration of dark period is not equal importance for flowering.

Most widely used compound as a source of ethylene is

Largest family of flowering plants is

The net primary productivity of an ecosystem is

In a pollen grain, larger nucleus is