MCQ
Krebs' cycle takes place in:
- ACytoplasm
- BChloroplast
- CNucleus
- DMitochondria
Explanation:
Kreb's cycle takes place in the mitochondrial matrix.
The pyruvate formed by the reduction of glucose in the glycolysis is broken into acetyl-CoA which enters the Kreb's cycle and condenses with oxaloacetate to form citrate.
One pyruvate molecules produce 15 ATP and two pyruvate molecules lead to the production of 30 ATP.
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$(i)$ Cockroaches are brown or black bodied animals that are included in class insecta of phylum arthropoda.
$(ii)$ Males bear a pair of short, thread like anal styles which are absent in females.
$(iii)$ Heart of cockroach consists of elongated muscular tube lying along mid dorsal line of thorax and abdomen.
$(iv)$ The nymph grows by moulting about $13$ times to reach the adult form.
$\begin{array}{|l|l|} \hline Column\;-\;I & Column\;-\;II \\ \hline A.\;Skin & 1.\;Accessory\;digestive\;gland \\ \hline B.\;Pancreas & 2.\;Respiratory\;organ \\ \hline C.\;Genitalia & 3.\;Sensory\;organ \\ \hline D.\;Eye & 4.\;Reproductive\;organ \\ \hline & 5.\;Excretory\;organ \\ \hline \end{array}$