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| Biology - MDCAT MCQs - Biology MCQs For MDCAT Preparation - 11th Biology |
1- How many molecules of water are released during the formation of lecithin:
a) 4
b) 3
c) 2
d) 1
2- A DNA having 14 nucleotides, what will be the number of ester bonds?
a) 20
b) 24
c) 27
d) 30
3- The backbone of DNA is made of:
a) Sugar
b) Sugar phosphate
c) Nitrogenous Base
d) All of them
4- Which one of the following RNA performs the function in the nucleus?
a) mRNA
b) tRNA
c) rRNA
d) None
5- Which one of the following RNA is produced in the nucleolus:
a) rRNA
b) mRNA
c) tRNA
d) None
6- Which one of the following is the true sequence?
a) Lipid+Protien+Licorrect
b) Protien+Lipid+Protien
c) Both
d) None
7- Which of the following is in contact with external and internal environments?
a) Hydrophobic part
b) Hydrophilic part
c) Both
d) None
8- Which one of the following has difficulty in crossing the membrane?
a) Starch
b) Glucose
c) Water
d) Gas
9- Which one of the following organelles is called a suicide bag in the cell?
a) Peroxisomes
b) Lysosomes
c) Glyoxisomes
d) All
10- Which one of the following parts of bacteriophage is more complex?
a) Head
b) Tail
c) Both
d) None
11- Which one of the following is not a viral disease?
a) Typhoid
b) Smallpox
c) Cowpox
d) Influenza
12- Viruses contain:
a) RNA and DNA
b) DNA or RNA
c) DNA
d) RNA
13- First preventive measure was made against:
a) Cowpox
b) Smallpox
c) Both
d) None
14- First preventive measure was made from:
a) Cowpox
b) Smallpox
c) Influenza
d) None
15- Which one of the following is the smallest known virus?
a) Poliovirus
b) Pox virus
c) Parvovirus
d) None
16- The essential components of bacteria are:
a) Chromatin
b) Ribosome
c) Cytoplasm
d) Cell membrane
e) All of the above
17- The non-essential components of bacteria are:
a) Fimbriae
b) Flagella
c) Capsule
d) Cell wall
e) Slime
f) Pili
g) All of the above
18- Which one of the following is the smallest known bacteria?
a) Mycoplasma
b) E.Coli
c) Spirochete
d) Streptococci
Tags
Biology-MDCAT-MCQs