MCQ
Glucagon and insulin are
- AAntagonistic secretions
- BSecreted by same cells and perform similar function
- ✓Secreted by different cells and perform antagonistic function
- DSecreted by same cells and perform antagonistic functions
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$R -$ Photorespiration starts with oxygenation of $RuBP.$
$\begin{array}{|p{0.3\linewidth}|p{0.6\linewidth}|} \hline Column\,\,-I & Column\,\,-II \\ \hline a.\,\,Hypertension & 1.\,\,Chest\,\,pain. \\ \hline b.\,\,Atherosclerosis & 2.\,\,Capacity\,\,of\,\,blood\,\,flow\,\,reduced\,\,from\,\,heart\,\,to\,\,body. \\ \hline c.\,\,Angina & 3.\,\,Affect\,\,to\,\,the\,\,organs\,\,like\,\,brain\,\,and\,\,kidney. \\ \hline d.\,\,Heart\,\,failure & 4.\,\,Cholesterol\,\,deposition\,\,in\,\,arteries. \\ \hline \end{array}$
$(i)$ It is ten enzymatic reactions that convert a six-carbon molecule to a three carbon pyruvate and result in a net gain of $2\, ATP$ molecules.
$(ii)$ Glucose undergoes partial oxidation to form one molecule of pyruvic acid.
$(iii)$ Glucose is phosphorylated to give rise to glucose $- 6 -$ phosphate by the activity of the enzyme phosphofructokinase.
$(iv)$ The scheme of glycolysis was given by Gustav Embden, Otto Morrison, and $J$. Parnas and is often referred to as the $EMP$ pathway.
$(v)$ $ATP$ is utilized at two steps: first in the conversion of glucose into glucose $6-$ phosphate and second in the conversion of fructose $- 6-$ phosphate to fructose $1, 6-$ disphosphate