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

In dicot root

Which sentence is concern with Cornelius Van Niel ?

How many complexes are involved in electron transport in mitochondria?

Which of the following is the most important cause driving animals and plants to extinction?

Main function of leaf is

In protein synthesis, the polymerization of amino acids involves three steps. Which of the following is not involved in protein synthesis

Match the column and select correct option for animal and area where it find?

Column I (Animals)	Column II (Country)
(A) Dodo	(i) Africa
(B) Quagga	(ii) Russia
(C) Thylacine	(iii) Mauritius
(D) Steller's sea cow	(iv) Australia
(E) Passenger pigeon	(v) North America

Which of the following would not secrete a cuticle

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.