P1 Lecture

Question 1

A chemistry term for saccharide or sugar?
A. Lipids
B. Carbohydrates
C. Proteins

Answer 1

B. Carbohydrate

Question 2

The most abundant class of bioorganic molecules on Earth

Answer 2

Carbohydrates

Question 3

Green plants produces carbohydrates via

Answer 3

Photosynthesis

Question 4

6CO2 + 12HO2 —–> C6H12O6 + 6H2O

Answer 4

Photosynthesis

Question 5

Two uses of Carbohydrates by plant

Answer 5

Cellulose & Starch

Question 6

Carbohydrates as a structural components
A. Amylopectin
B. Cellulose
C. Chitin

Answer 6

B. Cellulose

Question 7

Energy storage polysaccharides in plants?
A. Chitin
B. Amylose
C. Starch

Answer 7

C. Starch

Question 8

Where is the starch stored in cell?

Answer 8

Vacuole

Question 9

The following are the function of carbohydrates in human, except:

A. Provide a short-term energy storage
B. Linked to proteins function in a variety of cell-cell and cell-molecule recognition process
C. Serves as metabolic regulators of hormones

Answer 9

C. Serves as metabolic regulators of hormones

Question 10

This determines the handedness of the molecule in the presence of carbon atoms

Answer 10

Chirality

Question 11

This are the images that coincide at all points when images are laid to each other

Answer 11

Superimposable Mirror Image (Achiral)

Question 12

This are the images where not at all points coincide when images are laid to each other

Answer 12

Superimposable Mirror Image (Chiral)

Question 13

An atom molecule that has four different group tetrahedrally bonded to it

Answer 13

Chiral Center

Question 14

Molecule whose mirror image are superimposable

Answer 14

Achiral Molecule

Question 15

Molecule whose mirror image are not superimposable

Answer 15

Chiral Molecule

Question 16

Substance that rotates the polarized light to the left

Answer 16

Levorotatory ( L / - )

Question 17

Substance that rotates the polarized light to the right

Answer 17

Dextrorotatory ( D / + )

Question 18

Molecules which rotate the plane of polarized light are

Answer 18

Optically Active

Question 19

Isomers that have the same molecular and structural formation but differ in the orientation of atom in space

Answer 19

Stereoisomers

Question 20

Stereoisomers whose molecules are nonsuperimposable. Left & Right handedness

Answer 20

Enantiomers

Question 21

Stereoisomers whose molecules are not mirror images of each-other

Answer 21

Diastereomers

Question 22

A two dimensional structural notation for showing the spatial arrangement of groups about chiral molecules. Named after Emil Fischers

Answer 22

Fischer Projection Formula

Question 23

A two-dimensional structural notation that specifies the three-dimensional structure of cyclic form of monosaccharide.

Answer 23

Haworth Projection Formula

Question 24

A monosaccharide that contains an aldehyde functional group.

Answer 24

Aldose

Question 25

A monosaccharide that contains a ketone functional group

Answer 25

Ketose

Question 26

Carbohydrates which vary in one position for the placement of -OH group

Answer 26

Epimers

Question 27

Six- atom rings is called ____.

Answer 27

Pyranose

Question 28

Five- atom rings is called ____.

Answer 28

Furanose

Question 29

A hemiacetal carbon atoms present in a cyclic monosaccharide structure

Answer 29

Anomeric carbon atome

Question 30

Are cyclic monosaccharides that differ only in the position of the substituent on the anomeric carbon atoms

Answer 30

Anomers

Question 31

Two types of anomers

Answer 31

1. a- stereoisomer / alpha form 2. b-stereoisomer / beta form

Question 32

Can be found in Nucleic acid