The carrier of malaria disease is the female Anopheles mosquito.
These mosquitos transmit the Plasmodium parasite, which causes malaria, by their bites. When an infected mosquito bites a person, the parasites enter his or her bloodstream. Only female Anopheles mosquitoes are to blame, as they require blood meals to lay eggs.
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20 Questions
20 Marks
10 Mins English English100 Questions200 Marks90 Mins English English20 Questions20 Marks10 Mins EnglishWith reference to glucose metabolism and cellular respiration, consider the following statements:
Statement 1: The conversion of succinate to fumarate in the TCA cycle is unique because it is the only step catalyzed by an enzyme embedded in the inner mitochondrial membrane and directly links the TCA cycle to the electron transport chain.
Statement 2: Oxidative phosphorylation is the only stage of cellular respiration where oxygen is directly consumed, and all ATP generated in this stage is produced by substrate-level phosphorylation.
Statement 3: In glycolysis, the enzyme phosphofructokinase-1 (PFK-1) is allosterically inhibited by high concentrations of ATP and citrate, making it a key regulatory point for both glycolysis and the TCA cycle.
Which of the statements given above are correct?
In the Z-scheme of photosynthesis, which of the following electron flow combinations are NOT correct?
(i) P680 → Pheo → PQA → PQB → Cyt b6f → PC → P700
(ii) P700 → A0 → A1 → FeSx → FeSA → FeSB → Fd
(iii) P680 → Pheo → PQA → PQB → Cyt b6f → PC → P700
(iv) P700 → FA → A0 → FeSA → FeSB → FeSx → Fd
Which scientist worked independently and reached a similar conclusion to Darwin's?
Suggested Test Series
Suggested Test Series
With reference to glucose metabolism and cellular respiration, consider the following statements:
Statement 1: The conversion of succinate to fumarate in the TCA cycle is unique because it is the only step catalyzed by an enzyme embedded in the inner mitochondrial membrane and directly links the TCA cycle to the electron transport chain.
Statement 2: Oxidative phosphorylation is the only stage of cellular respiration where oxygen is directly consumed, and all ATP generated in this stage is produced by substrate-level phosphorylation.
Statement 3: In glycolysis, the enzyme phosphofructokinase-1 (PFK-1) is allosterically inhibited by high concentrations of ATP and citrate, making it a key regulatory point for both glycolysis and the TCA cycle.
Which of the statements given above are correct?
In the Z-scheme of photosynthesis, which of the following electron flow combinations are NOT correct?
(i) P680 → Pheo → PQA → PQB → Cyt b6f → PC → P700
(ii) P700 → A0 → A1 → FeSx → FeSA → FeSB → Fd
(iii) P680 → Pheo → PQA → PQB → Cyt b6f → PC → P700
(iv) P700 → FA → A0 → FeSA → FeSB → FeSx → Fd
Which scientist worked independently and reached a similar conclusion to Darwin's?
