biology chapter 2 Flashcards

1
Q

define biochemistry and biomolecules?

A

Biochemistry explores chemical processes and compounds related to living organisms.
A biomolecule is a chemical compound found in living organisms.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

what does C-O bond do

A

they associate with glycosidic linkage and stabilize carbohydrates

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

what makes water the universal solvent

A

its polarity

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

what is the strength of H-bonds

A

they are weak bonds represented by dotted lines.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

what is the function of glucolipids and glucoproteins

A

they form extracellular matrix in animals, bacterial cell walls and form cell membranes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

all carbon atoms have OH group attached in monosaccharides EXCEPT

A

one

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

polysaccharides exert no…in the cell

A

osmotic or chemical influence in the cell

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

what is the glucose conc. in blood

A

0.08 %

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

who is the storage carbohydrates of plants

A

starch

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

who is the storage carbohydrates of animals

A

glycogen

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

which is the most abundant and second-most abundant carbohydrate in the world

A

most abundant: cellulose
2nd most abundant: chitin

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

cellulose is not digested by humans but is used at…..or……..to prevent……..

A

cellulose is not digested by humans but is used as ROUGHAGE or FIBRE to prevent OVER ABSORPTION OF FOOD BY THE INTESTINE

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

explain micelle

A

A micelle consists of a core and a shell, where hydrophobic end groups form the core and hydrophilic head groups form the outer shell.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

what is the shape of normal RBCs and Sickle cells?

A

normal is concave and the other is crescent or sickle.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

conjugated molecules

A

are molecules when combined with other molecules are called c.m or are diff. types of molecules combined together.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

functions of lipoproteins

A

transportation and delivery of fatty acids, triacylglycerol, and cholesterol to and from target cells in many organs.

16
Q

function of nucleoproteins

A

they are involved in all vital processes, including replication, transcription, translation, regulation of gene expression and cell metabolism

17
Q
A