STD 11 - 9. Biomolecules — BIOLOGY STD 11 Science — Question

$(1)$ Growth and Reproduction are inclusive events.

$(2)$ unicellular organisms grow by cell division.

$(3)$ Both are exclusive

$I.$The portion of the spectrum between $300-500 \;nm$ is also referred to as Photosynthetically Active Radiation $(PAR)$.

$II.$ Magnesium, calcium and chloride ions play prominent roles in the photolysis of water:

$III.$ In cyclic photophosphorylation, oxygen is not released (as there is no photolysis of water) and $NADPH$ is also not produced.

$I.$ Kidneys are reddish brown and bean-shaped structure

$II.$ Kidneys are situated between the last thoracic and third lumber vertebra

$III.$ Each kidney of an adult human measures $10-12\, cm$ in length, $5-7\, cm$ in width, $2-3 \,cm$ thickness, and average weight $120-170$ $gram$