Carbohydrates META

Question 1

The enzyme in the mouth is called

Answer 1

Alpha Amylase or ptyalin

Question 2

Alpha amylase requires ____ ion for activation under ___pH

Answer 2

Chlorine
6.7

Question 3

Amylopsine is found where

Answer 3

Duodenum

Question 4

All carbohydrates absorbed by the body are _____

Answer 4

Monosaccharide

Question 5

SGlut 1 and SGlut 2 are located at ___&___

Answer 5

Intestines
Kidney

Question 6

Glut4 are mainly located at

Answer 6

Skeletal muscle and adipose tissue

Question 7

Glucose and galactose are absorbed by_____ transporter

Answer 7

SGlut

Question 8

Phase 2 of glycolysis is called____

Answer 8

Preparatory stage
Where glucose is converted to glyceraldehyde-3-phosphate

Question 9

Glucose is freely permeable at_____

Answer 9

Liver cells

Question 10

Glucose is actively transported at _____

Answer 10

Intestinal mucosa and kidney

Question 11

Insulin aids absorption at ______

Answer 11

Cardiac, skeletal, diaphragm and adipose tissues

Question 12

Bromohydrozyacetone inhibits _____ part of glycolysis and why?

Answer 12

Stage 5
It resembles dihydroxy acetone phosphate so it binds with phosphotriose isomerase

Question 13

How much energy is used up at phase one of glycolysis

Answer 13

2

Question 14

Gluconeogenesis occur in ___ and ____
Majorly___

Answer 14

Liver and kidney
Liver 90%

Question 15

During starvation does the kidney become a major site of gluconeogenesis?

Answer 15

Yes

Question 16

Pyruvate carboxylase is found in the mitochondria of ___ & _____ by not ______

Answer 16

Kidney & liver
Muscle

Question 17

What inhibits gluconeogenesis (at fructose 1’6 bisphosphate)?
And what fovours it?

Answer 17

High level AMP
High level ATP and Low AMP

Question 18

During gluconeogenesis how many ATP is required to form 1 glucose

Answer 18

6 ATP

Question 19

In Sucrose, the glucose is taken up ny____ anD fructose by ____

Answer 19

SGLUT1
GLUT1

Question 20

Liver uses_____ And Muscle _____ transporter?

Answer 20

GLUT 2
GLUT 4

Question 21

_____ hydrolyzes limit dextrin into ___&_____

Answer 21

Isomaltase(1-6 glycocydic bond)
Maltose and glucose

Question 22

Drugs such as ___& ____ inhubits Na pump and also inhibit active transport of sugar
____ inhibits metabolic energy and also inhibits active transport of sugar?

Answer 22

Strophanthin
Dinitrophenol

Question 23

____ glycoside inhibits glucose transport by displacing Na from its binding site?

Answer 23

Phloridin

Question 24

Deficiency in what vitamin diminishes glucose absorption

Answer 24

Vitamin B, thiamine(B1) , pyrodoxine(B6) , pantothenic acid(B5)

Question 25

What's Rapport Leubering cycle

Answer 25

In the erythrocytes, step 7 (conversion of 1,3-BPG to 3-PG) of glycolysis is bypassed. Bisphosphoglycerate mutase converts 1,3-bisphosphoglycerate (BPG) to 2,3-BPG. Then BPG￾phosphatase removes the phosphate group to form 3-phosphoglycerate

Question 26

Why can't ketogenic compounds like acetyl coA give rise to synthesis of glucose?

Answer 26

Irreversible nature of pyruvate hydrogenase

Question 27

Fructose intolerance can be due to? Fructose can still be phosphorylated by fructose kinase bt energy will be lacking Becuz ph is need to form ATP from ADP

Answer 27

Aldolase B-- liver failure

Question 28

____ causes fructosemia?

Answer 28

Lack of fructose kinase

Question 29

Fructose induced hypoglycemia is caused by?

Answer 29

Fructose 1-6 bisphosphate

Question 30

Absent if ____ is the most common cause of galactosemia

Answer 30

Uridyl tranferase

Question 31

Glycogenesis involves ___ phases

Answer 31

Synthetic phase and catabolic phase

Question 32

A debranching enzyme called

Answer 32

Oligo α-(1,4)-glucantransferase which contains two activities, glucantransferase and glucosidase, removes the terminal 3 glucose residues of one branch and attaches them to a free C4 end of a second branch