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The branch of biology which deals with the study of chemical compounds and the chemical processes in the fliving organisms is called:
% of water in brain cells is
Roots of a plant show
Which bond provides stability to complex carbohydrate molecules?
Haemoglobin exhibits a:
NUMS 2016
Biology
Biological Molecules
Elimination Tool:
Which of the following has the ability to develop ester linkage with OH group of Pentose sugar?
NUMS 2019 Reconduct
Biology
Biological Molecules
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Which one is the basic element of organic compounds ?
Cn(H2O)n. is a general formula of :
Ribosomes are composed of almost an equal amount of:
NUMS 2018
Biology
Biological Molecules
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Water acts as a universal solvent because of:
PMC 2020
Biology
Biological Molecules
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The melting point of unsaturated fatty acids:
NUMS 2019 Reconduct
Biology
Biological Molecules
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All of the following structures are proteinous in nature except:
NUMS 2014
Biology
Biological Molecules
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Carbon atom is
Which one of the following is found in both messenger RNA and DNA of a mammalian cell?
PMC 2020
Biology
Biological Molecules
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The bond formed when two or more atoms complete their electron shells by sharing electrons is called:
NAD is an example of:
PMC 2020
Biology
Biological Molecules
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Lecithin is formed by combining phosphatidic acid with ______:
NUMS 2020
Biology
Biological Molecules
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Proteoglycan in cartilages (which consists of polysaccharides) are also attached to:
NUMS 2014
Biology
Biological Molecules
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The disease caused by nutritional deficiency is:
NTS 2018
Biology
Biological Molecules
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According to the fluid mosaic model of cell membrane, which zone is embedded inside?
PMC 2020
Biology
Biological Molecules
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When the concentration of the external medium is equal to the concentration of the internal medium of a cell, the situation is called:
NUMS 2017
Biology
Biological Molecules
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The specific heat capacity of water is the number of calories required to raise the temperature of water from _____ ˚C is 1.0.
NUMS 2019 Reconduct
Biology
Biological Molecules
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Which of these is not a disaccharide?
NUMS 2018
Biology
Biological Molecules
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Among the most abundant biomolecules, _____ is the most abundant one on earth.
NUMS 2016
Chemistry
Biological Molecules
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Which one is an organic compound?
Lipids store double the amount of energy as compared to carbohydrates because of:
PMC 2020
Biology
Biological Molecules
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The property of water due to which it works as a temperature stabilizer and hence protect living organisms from sudden thermal changes is:
The cell wall of most of the bacteria have a unique macromolecule called_______.
NTS 2012
Biology
Biological Molecules
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The number of calories required to raise the temperature of 1g of water from 15 to 16?C is called?
Which statement is true about an aqueous medium:
A complex substance which on hydrolysis yields polyhydroxy aldehyde or ketone subunits is called:
Glucose and fructose join together through _____ to form sucrose.
NUMS 2019 Cancelled
Biology
Biological Molecules
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Which of the statement is not true for compounds like glycoprotein and glycolipids?
Which of the following has the ability to develop ester linkage with the OH group of Pentose sugar?
NUMS 2015
Biology
Biological Molecules
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Each β – chain of hemoglobin molecules contains ____ amino acids.
NUMS 2019 Reconduct
Biology
Biological Molecules
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Human cells maintain concentration gradients across their plasma membranes, such that there is a high sodium concentration outside the cell and a high potassium concentration inside the cell.
Suppose that within the cell membrane are sodium leak channels or carrier proteins. These channels would allow sodium to:
NTS 2017
Biology
Biological Molecules
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Peptide bonds are formed between:
NUMS 2014
Biology
Biological Molecules
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Which of the following basic structural level of proteins is indicated by an association of two alpha and two beta chains in the haemoglobin molecule?
NTS 2018
Biology
Biological Molecules
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Which chemical component has the greatest contribution in the total mammalian cell weight?
Which of the following are instant sources of energy in living organisms, like glucose? Their general formula is:
NUMS 2019 Cancelled
Biology
Biological Molecules
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Which type of protein structure contains the three dimensional structure?
NTS 2013
Biology
Biological Molecules
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Glucose and fructose join together through _____ to form sucrose.
NUMS 2019 Reconduct
Biology
Biological Molecules
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Ribose sugar that is the main part of RNA is a type of _____ sugar.
NUMS 2019 Reconduct
Biology
Biological Molecules
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The helical structure of a protein is kept by the formation of hydrogen bond between amino acid molecules which are:
NUMS 2015
Biology
Biological Molecules
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Which one are most complex sugar:
Which of the following carbohydrate is tasteless?
Which of the following is the constituent of RNA molecule?
NUMS 2019 Cancelled
Biology
Biological Molecules
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Reactive parts of an amino acid are:
NUMS 2015
Biology
Biological Molecules
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he molecule used by most of the animals for long-term energy storage is:
NUMS 2016
Biology
Biological Molecules
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Which chemical component has the same % in bacterial as well as the mammalian cell?
Most simple amino acid is:
NUMS 2019 Cancelled
Biology
Biological Molecules
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Steroids consist of _____ 6 membered carbon rings and one 5 membered carbon ring.
NTS 2012
Biology
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Which of the following is an unsaturated fatty acid?
PMC 2020
Biology
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Ptyalin can convert starch into:
NUMS 2015
Biology
Biological Molecules
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Reactions in which simple substances are combined to form complex substances are called:
Which of the following amino acids has single codon?
NUMS 2014
Biology
Biological Molecules
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Which of the following has the ability to develop ester linkage with the OH group of Pentose sugar?
NUMS 2017
Biology
Biological Molecules
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Specific heat of vaporization of water is:
Which of the following processes is the reverse of condensation?
NTS 2016 SMBBMC
Biology
Biological Molecules
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In an isotonic solution there would be:
NTS 2016 SMBBMC
Biology
Biological Molecules
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Mono-saccharides have a general formula represented by:
PMC 2020
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Antibodies are
NUMS 2019 Cancelled
Biology
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Which of the following substance is most favorable to form structural component of biological membranes?
Movement of ions and large molecules with the help of protein molecules in and out of the cell is called _________.
NTS 2016 DUHS & JSMU
Biology
Biological Molecules
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Cell wall is made up of:
NUMS 2016
Biology
Biological Molecules
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5 different amino acids, numbered 1, 2, 3, 4, and 5, below from the following sequence in the path of a polypeptide chain:
1-2-3-4-2-5-3
Messenger RNA codon, which correspond to the amino acids, are:
amino acid 1 UGU
amino acid 2 GAU
amino acid 3 CAC
amino acid 4 UAG
amino acid 5 AAG
Which one of the following DNA bases sequences could provide the code for the given section of the polypeptide?
NTS 2015 DUHS and JSMU
Biology
Biological Molecules
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When the hydroxyl group, -OH, of the carboxyl group, -COOH, of an amino acid is linked with the hydrogen of the amino group, -NH2, of another amino acid, ______ is released and a peptide bond is formed.
NUMS 2019 Reconduct
Biology
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