Biology Part 1 Unit # 2 MCQs

1-A basic kmowledge of biochemistry is essential for understanding physiology and
A-histology
b-cytology
C-anatomy
D-genetics

2-a bacterial cell has carbohydrates in a %age of
A-1%
B-2%
C-3%
D-4%

3-peptide bond is a link in
A-C-N link
B-C-O link
C-N-H link
D-C-H link

4-catabolism is to anabolism as _____ is to ______
A-exergonic,spontaneous
B-exergonic,endergonic
C-free energy,antropy
D-work,energy

5-what is the most abundant compund in the bodies of all organisms?
A-proteins
B-DNA
C-water
D-salts

6-which bond in irganic compound is the potential source of chemical energy?
A-H-H
B-C-H
C-C-N
D-C-C

7-the amount of water in human brain cell is
A-20
B-90
C-85
D-89

8-which on of the following is called cardle of life
A-carbon
B-water
C-DNA
D-enZyme

9-the specific heat capacity of water is
A-0.8
B-1.0
C-0.64
D-0.08

10-animals obtain carbohydrates mainly from
A-glucose
B-starch
C-cellulose
D-glycogen

11-which of the following kind of atoms do not occur in carbohydrates
A-carbon
B-hydrogen
C-nitrogen
D-oxygen

12- the most abundant carbohydrate in nature is
A- pectin
B-glycogen
C-cellulose
D-chitin

13- which on of the following is a carbohydrate
A-chitin
B-cutin
C-fibrin
D-albumin

14-on hydrolysis sucrose produce glucose n
A-glucose
B-fructose
C-lactose
D-galactose

15-our blood normally contains how much glucose
A-0.8%
B-0.08%
C-0.008%
D-none

16-which of the following will give red colour with iodine
A-cellulose
B-starch
C-glycogen
D-amylose

17-lipids r not soluble in which of the following
A-ether
B-alcohol
C-chloroform
D-water

18-how many carbon atoms are present in fatty acids
A-3-7
B-4-30
C-25-35
D-2-25

19-neutral lipids are also called as
A-diglyceride
B-triglyceride
C-terpenoids
D-isopernoids

20-what is the most imprtant organic compound of a cell
A-carbohydrate
B-water
C-lipids
D-proteins

21-which of the following type of RNA is most abundant in a cell
A-mRNA
B-tRNA
C-rRNA
D-complementey RNA

22-what no. of nucleoides will code for a protein of 3000 amino acids
A-3000
B-9000
C-12000
D-1000

23-RNA is synthesized by DNA in a process called
A-replication
B-transformation
C-transcription
D-translation

24-the 1st microbe to have genome cmpletely sequenced
A-E.Coli
B-clostridium tetanu
C-heamophilus influenza
D-thermus aquaticus

25-it is a polynucleotide chain
A-ATP
B-RNA
C-waX
D-base

26-which of the following is a fibrous protein
A-spider web
B-fibrin
C-keratin
D-all of these

27-secondary structure of protein is a characteristic of
A-globular proteins
B-fibrous proteins
C-ellipsoidal proteins
D-oblong proteins

28-who was the 1st scientist to determine the sequence of amino acids in a protein molecule
A-F Meischer
B-F Sanger
C-Murice wilkins
D-P.A leven

29-all are fibrous proteins except
A-silk
B-keratin
C-fibrin
D-enzyme

30-globular proteins differ frm fibrous proteins in
A-having amino acids
B-their repeating units are joined by peptide bonds
C-being soluble in aqueous medium
D-being non-crystalline

Correct ans=c,c,a,b,c,b,c,b,b,b,c,c,a,b,b,c,d,b,b,d,c,b,c,c,b,d,b,b,d,c