NURSING ANM AND GNM

NURSING EXAM QUESTIONS

PHARMACOGNOSY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The series of enzymatic steps that fixes carbon dioxide into carbohydrate is called the ____
A
Kreb’s cycle
B
Embden-Meyerhoff pathway
C
Calvin cycle
D
Entner-Douderoff pathway
Explanation: 

Detailed explanation-1: -The conversion of CO2 to carbohydrate is called Calvin Cycle or C3 cycle and is named after Melvin Calvin who discovered it. The plants that undergo the Calvin cycle for carbon fixation are known as C3 plants. Calvin Cycle requires the enzyme ribulose-1, 5-bisphosphate carboxylase/oxygenase commonly called RuBisCO.

Detailed explanation-2: -1.1 Calvin cycle enzymes. Calvin cycle is operated by 11 different enzymes that catalyze 13 reactions. The “key” regulatory enzymes are RuBisCO, FBPase, SBPase, and PRK. These enzymes play a major role as they control the rate of CO2 fixation.

Detailed explanation-3: -The Calvin cycle is a process that plants and algae use to turn carbon dioxide from the air into sugar, the food autotrophs need to grow. Every living thing on Earth depends on the Calvin cycle. Plants depend on the Calvin cycle for energy and food.

There is 1 question to complete.