BIO103.6 Quiz 02 Questions
Group 01:
Q.1: Mass changes depending on gravity.
Answer: False; Weight changes depending on gravity.
Q.2: High density lipoproteins (HDL) excess cholesterol and transport it back to the body's liver
for possessing.
Answer: True.
Q.3: Ionic bond gives water its unique properties that make life possible.
Answer: False; Polar covalent bond gives water its unique properties that make life possible.
Q.4: The speed of electrons is like the speed of light.
Answer: True.
Q.5: Glycogen is a type of carbohydrate present in plants.
Answer: False; Glycogen is a type of carbohydrate present in animals.
Q.6: 1 gm carbohydrate provides us 9 kcal energy.
Answer: False; 1 gm carbohydrate provides us 4 kcal energy.
Q.7: Low density lipoprotein (LDL) cholesterol is known as the bad cholesterol.
Answer: True.
Q.8: The fundamental building blocks of all cell membranes are folic acid.
Answer: False; The fundamental building blocks of all cell membranes are phospholipids.
Q.9: Sucrose is a monosaccharide.
Answer: False; Sucrose is a disaccharide.
Q.10: Hydrolysis is the reverse of ionization.
Answer: False; Hydrolysis is the reverse of condensation.
Group 02:
Q.1: Atoms take electrons and become cations.
Answer: False; Atoms donate electrons and become cations.
Q.2: Amino acids are divided into two groups.
Answer: True.
Q.3: Isotopes are the same element with different atomic numbers.
Answer: False; Isotopes are the same element with different numbers of neutrons and same
number of protons.
Q.4: Condensation reaction occurs via the loss of a small molecule, usually from two different
substances, resulting in the formation of a covalent bond.
Answer: True.
Q.5: The core of an atom is the Nucleus
Answer: True.
Q.6: In glucose, Carbon, Hydrogen and Oxygen makes a molecule of glucose in 1:4:1 ratio.
Answer: False; In glucose, Carbon, Hydrogen and Oxygen makes a molecule of glucose in
1:2:1 ratio.
Q.7: Protein acts as storage material for food and energy.
Answer: True.
Q.8: Lactose is table sugar.
Answer: False; Lactose is milk sugar.
Q.9: Polymerization is the process of making bonds by releasing Oxygen.
Answer: False; Polymerization is the process of making bonds by releasing water.
Q.10: There are three naturally occurring isotopes of Carbon.
Answer: True.
Group 03:
Q.1: Blockage of blood supply in vessels of the heart is called stroke.
Answer: False; Blockage of blood supply in vessels of the brain is called stroke.
Q.2: A metabolic state that occurs when your body burns fat for energy instead of glucose is
mitosis.
Answer: False; A metabolic state that occurs when your body burns fat for energy instead of
glucose is ketosis.
Q.3: A Polar Covalent Bond is created when the shared electrons between atoms are not
equally shared.
Answer: True.
Q.4: A myocardial infarction happens when a part of the heart muscle doesn't get enough blood.
Answer: True.
Q.5: Lactose is a disaccharide sugar synthesized by fructose and glucose.
Answer: False; Lactose is a disaccharide sugar synthesized by galactose and glucose.
Q.6: The more electronegative an atom is,the more strongly it pulls shared electrons towards
itself.
Answer: True.
Q.7: The tonicity of a solution has a unit.
Answer: False; It has no units.
Q.8: Buffers are a part of homeostasis that keeps the pH of body fluids unstable.
Answer: False; Buffers are a part of homeostasis that keeps the pH of body fluids stable.
Q.9: Unsaturated fatty acid contains single bonds.
Answer: False; It contains double bonds.
Q.10: The exo-skelton of insects are made up of protein.
Answer: False; They are made up of Chitin.
Group 04:
Q.1: Chitin is present in plant cells.
Answer: False; Chitin is present in animal cells.
Q.2: Phospholipids are found in the cell membrane.
Answer: True.
Q.3: LDL means Low Density Lipoprotein.
Answer: True.
Q.4: Water is stable in high temperatures.
Answer: True.
Q.5: Trans fat is formed during the hydrogenation of fatty acid.
Answer: True.
Q.6: One gram of lipid provides 4 kilocalories of energy
Answer: False; One gram of lipid provides 9 kilocalories of energy
Q.7: The force that holds the atoms together is called a physical bond.
Answer: False; The force that holds the atoms together is called a chemical bond.
Q.8: There are three types of bonds in an atom.
Answer: True.
Q.9: Living things are made of chemical compounds
Answer: True.
Q.10: Glucose molecules assemble to make cellulose.
Answer: True.
Group 05:
Q.1: Fats with a certain arrangement of hydrogen atoms around that carbon chain are called
trans fats.
Answer: True.
Q.2: A small serving of French-fries made with hydrogenated vegetable oil contains about 2
grams of trans fats.
Answer: False; It contains about 5 grams of trans fats.
Q.3: The number of protons in the nucleus remains the same during chemical reactions.
Answer: True.
Q.4: Starch and Glycogen can not be digested by animals.
Answer: False; Cellulose can not be digested by animals.
Q.5: Hydrogen bond is present in DNA.
Answer: True.
Q.6: Isotope with an unstable nucleus is called Radioactive decay.
Answer: False; Isotope with an unstable nucleus is called Radioisotope.
Q.7: Atomic number is the number of neutrons in the atomic nucleus.
Answer: False; Atomic number is the number of protons in the atomic nucleus.
Q.8: Atoms are electronically neutral.
Answer: True.
Q.9: Chitin is formed from glucose.
Answer: False; Chitin is formed from glucosamine.
Q.10: Monosaccharide is a simple sugar that constitutes the building blocks of a more complex
form of sugars
Answer: True.
Group 06:
Q.1: Glycogen present in animals.
Answer: True.
Q.2: Energy is stored in the chemical bonds of the glucose molecule.
Answer: True.
Q.3: Altogether 1 mol glucose molecule gives you 10 kcal of energy.
Answer: False; 1 mole of glucose gives you 7 kcal of energy.
Q.4: Nucleotides are the monomers for nucleic acids.
Answer: True.
Q.5: Diffusion requires a semi-permeable membrane.
Answer: False; Osmosis requires a semi-permeable membrane.
Q.6: Thousands of different kinds of proteins are made from only twenty monomers, called
amino acids.
Answer: True.
Q.7: Starch is found in Animals.
Answer: False; Starch is found in plants.
Q.8: Oxygen is a molecule made up of two oxygen atoms.
Answer: True.
Q.9: Lipids act as antibodies to prevent disease.
Answer: False; Proteins act as antibodies to prevent disease.
Q.10: There are 4 different types of nitrogenous bases in nature.
Answer: False; There are 5 different types of nitrogenous bases in nature.
Group 07:
Q.1: An element is a substance consisting of two or more different elements combined in a fixed
ratio.
Answer: False; A compound is a substance consisting of two or more different elements
combined in a fixed ratio.
Q.2: Molecules formed by ionic bonding break up (ionization) when dissolved in water
(solvent), producing separate positive (cation) and negative (anion) ions.
Answer: True.
Q.3: Atoms participating in the bonds share electrons equally.
Answer: False; Atoms participating in the bonds do not share electrons equally.
Q.4: A molecule is a particle composed of two or more atoms of same or different elements.
Answer: True.
Q.5: Only plants produce waxes.
Answer: False; Both plants and animals produce waxes.
Q.6: The bond that forms between two amino acids is called a peptide bond.
Answer: True.
Q.7: Unused Carbohydrates stored as starch in the human body.
Answer: False; Unused Carbohydrates stored as glycogen in the human body.
Q.8: 1 mole glucose gives us 38 ATP.
Answer: True.
Q.9: Trans fats are created by adding Nitrogen to liquid vegetable oil.
Answer: False; Trans fats are created by adding Hydrogen to vegetable oil.
Q.10: Atherosclerosis is hardening of the arteries.
Answer: True.