STD 11 - 2. Biology classification — NEET STD 11 Science — Question

In an ecosystem

In which of the following meiosis takes place

Cell is the fundamental, structural and functional unit of all living organisms because

Which hormone inhibit morphogenesis

Which of the following statements is true regarding chemiosmotic hypothesis ?
(i) Protons or hydrogen ions that are produced by the splitting of water accumulate within the lumen of the thylakoids.
(ii) Primary accepter of electron which is located towards the outer side of the thylakoids membrane transfers its electron not to an electron carrier but to an H carrier.
(iii) The NADP reductase enzyme is located on the stroma side of the membrane.
(iv) Protons are also removed from the stroma by NADP.
(v) Due to removal of proton by NADP, within the chloroplast, protons in the stroma decrease in number, while in the lumen there is accumulation of protons. This creates a proton gradient across the thylakoid membrane.
(vi) Due to accumulation of protons in lumen of thylakoid measurable increase in pH in the lumen.

The rate of growth is highest in

The pyramid of energy is the best representation of an ecosystem because it indicates

Statement - I - Early greek thinkers thought units of life called spores were transferred to different planets including earth.
Statement - II - For a long time it was also believed that life comes out of decaying and rotting matter like straw, mud etc. this was the theory of spontaneous genera-tion.