BS Botany 6th Semester Plant Biochemistry Past Paper 2022

BS Botany 6th Semester Plant Biochemistry Past Paper 2023.BS Botany 6th Semester Plant Biochemistry Past Paper 2022.BS Botany 6th Semester Plant Biochemistry Past Paper 2024.

What is RiBusco ?

Ribulose-1,5-bisphosphate carboxylase-oxygenase, commonly known by the abbreviations RuBisCo, rubisco, RuBPCase, or RuBPco, is an enzyme involve in the first major step of carbon fixation, a process by which atmospheric carbon dioxide is convert by plants and other photosynthetic organisms to energy-rich molecules .

Difference Between Aldose And Ketose ?

FoundPrimarily in plantsIn processed food
Isomerizationisomerize into ketosesisomerize into aldoses only in the presence of reducing sugar’
Seliwanoff’s Test colorLight pinkDeep cherry red
ExampleGlucose, ribose, and galactoseFructose, erythrulose, and ribulose

Write Notes HMP Shunt ?

HMP shunt is also call as pentose phosphate pathway or phosphogluconate pathway. It is an alternative pathway to glycolysis and TCA cycle. HMP shunt is more anabolic, as it is concerned with the biosynthesis of NADPH and pentoses. Location: The enzymes for HMP shunt are located in the cytosol of cells.


The hexose monophosphate shunt, also known as the pentose phosphate pathway, is a unique pathway use to create products essential in the body for many reasons. The HMP shunt is an alternative pathway to glycolysis and is used to produce ribose-5-phosphate and nicotinamide adenine dinucleotide phosphate (NADPH).

Who discovered HMP shunt?

Option B: Hexose Monophosphate Pathway (HMP) is an alternative pathway of glucose breakdown found in animal tissues like the liver, mammary glands, adrenal cortex, leucocytes, and in many plant tissues. This pathway was first discovered by Warburg and Dickens (1938).

Why is HMP called shunt?

This pathway is also called the oxidative pentose pathway and the hexose monophosphate shunt. It has been called the latter because it involves some reactions of the glycolytic pathway and therefore has been viewed as a shunt of glycolysis. It exists in both prokaryotic and eukaryotic cells.

The pentose phosphate pathway Cycle ?