Stage 1 Series – Total Marks – 30 / Time Allowed – 1 Hour
Syllabus:
Introduction to biochemistry, Importance of water, Carbohydrates (excluding the subtopics monosaccharides, Oligosaccharides & polysaccharides), lipids (Excluding the subtopics acylglycerols, waxes, phospholipids, & Terpenoids), Proteins, Structure of proteins, Nucleic acids (Excluding the subtopics “DNA” & RNA).
I- Multiple Choice Questions.
- Which one is not studied under the head of biochemistry?
a. All Chemical reactions
b. Metabolism
c. Structure of nucleic acid
d. Molecular structure of hemoglobin - Which property of water does not have an effect on the biological system?
a. Carries nutrients
b. Solubility
c. Regulate body temperature
d. All are important - The major reason behind the specific behavioral patterns in the solubility, heat capacity, and heat of vaporization of water is?
a. Covalent nature
b. Hydrogen bonding
c. Catenation
d. All of the above - Which one of the following will be hydrolyzed?
a. Ribulose
b. Galactose
c. Lactose
d. None of the above - Which one of the following has the highest amount of stored energy?
a. Glutamic acid
b. Ribulose
c. Palmitic acid
d. ATP - The cytochromes are ______________containing proteins?
a. Fe
b. Mn
c. Zn
d. None of the above - A level of protein structure that is a collection of different polypeptide conformations in a multi-subunit complex?
a. Primary
b. Secondary
c. Tertiary
d. Quaternary - The protein structure is determined by the __?
a. Nucleotide sequence of DNA
b. ATP Level
c. Coiling techniques
d. Size of Amino acids - The most common form of RNA is?
a. rRNA
b. tRNA
c. mRNA
d. All are a common form - Phosphodiester bond is present in _?
a. Disaccharide
b. Dipeptide
c. Dinucleotide
d. All
II- Short Answer Questions? - What is the biological significance of hydrogen bonding in the water?
- Why ATP is called a Chemical link between catabolism and anabolism?
- What are the different structural roles of proteins?
- Write down the structure of glycylalanine.
- A protein has four polypeptides, one with 10 amino acids, other three are with 5 amino acids each. How many peptide bonds are present in the whole protein?
- What is a phosphodiester bond?
II- Long Questions? - Write a detailed note on the Importance of water.
- What are the different levels of protein structures?
Honesty is the best policy. Learn and Lead the world. Best of Luck