Carbs

Question 1

Formula of Carbs

Answer 1

Cn(H2O)n

Question 2

How are carbs produced in plants

Answer 2

From CO2 and H20 via photosynthesis

Question 3

Carbs can be covalently linked with proteins to form what

Answer 3

glycoproteins and proteoglycans

Question 4

Monosaccharides are what

Answer 4

simple sugars

Question 5

General formular for monosaccharides

Answer 5

CnH2nOn (n>3)

Question 6

Where is the carbonyl in an aldehyde?

Answer 6

On the end

Question 7

Where is the carbonyl in a ketone?

Answer 7

In the middle

Question 8

What are the most common aldoses for 6 carbons

Answer 8

Glucose, Mannose and Galactose

Question 9

Clockwise stereoisomers have what notation

Answer 9

R

Question 10

Anticlockwise stereoisomers have what notation

Answer 10

S

Question 11

Clockwise stereoisomers prioritises the groups how

Answer 11

From largest to smallest groups in a clockwise stereoisomers

Question 12

What are priorities for the groups

Answer 12

-OCH3 > -OH > NH2 > -COOH > -CHO > -CH2OH > -CH3 > -H

Question 13

Enantiomers are what

Answer 13

stereoisomers are non super imposable mirror images

Question 14

How are D and L isomers designated in sugars that contain many chiral centers?

Answer 14

onlytheonethatismostdistant fromthecarbonylcarbon isdesignatedasD(right)orL(left)

Question 15

Most hexoses in living organisms are what stereoisomers

Answer 15

D

Question 16

In nature proteins have what amino stereoisomer and carbohydrates have what stereoisomer

Answer 16

proteins have L-amino acids and carbohydrates have D sugars.

Question 17

Epimers are two sugars that differ how

Answer 17

In the configuration around one carbon atom

Question 18

Diastereomers are what and have different what

Answer 18

Stereoisomers that are not mirror images and different physical properties

Question 19

How is a molecular ring formed in aqueous solution?

Answer 19

Aldehyde or ketone group of a sugar molecule tends to react with a hydroxyl group of the same molecule

Question 20

Isomers are what

Answer 20

Same formula but different spatial arrangement of atom

Question 21

In diagrams, horizontal bonds are pointing where and vertical bonds point where?

Answer 21

Horizontal bonds point towards you and Vertical bonds project away from you

Question 22

Enantiomers are what?

Answer 22

Stereoisomers that are nonsuperimposable mirror images