General-Studies Quiz For FCI Phase I 2022- 10th October

Q1. Which of the following contain enzymes for cellular respiration?
(a) Dictyosomes
(b) Endoplasmic reticulum
(c) Lysosomes
(d) Mitochondria
(e) None of the above

Q2. Which one among the following nutrients is a structural component of the cell wall of plants?
(a) Manganese
(b) Potassium
(c) Phosphorus
(d) Calcium
(e) None of the above

Q3. Flexibility in certain parts, like leaf and stem, can be attributed to the abundance of
(a) parenchyma
(b) collenchyma
(c) sclerenchyma
(d) xylem and phloem
(e) None of the above

Q4. In which one of the following antibody formations takes place?
(a) RBCs
(b) Blood Platelets
(c) Blood Plasma cells
(d) Donnan’s membrane
(e) None of the above

Q5. A long jumper runs before jumping because he
(a) covers a greater distance
(b) maintains momentum conservation
(c) gains energy by running
(d) gains momentum
(e) None of the above

Q6. A body is thrown vertically upwards and then falls back on the ground. Its potential energy is maximum
(a) on the ground
(b) at the maximum height
(c) during the return journey
(d) both on the ground and at the maximum height
(e) None of the above

Q7. The compound that has the least value for octane number is
(a) n-heptane
(b) 2-methyl heptane
(c) Iso-octane
(d) 2, 2-dimethyl hexane
(e) None of the above

Q8. Why does two oxygen atoms in a sample of ethyl ethanoate (CH3COOC2H5) have the same number of electrons but different number of neutrons?
(a) One of the oxygen atoms has gained electrons
(b) One of the oxygen atoms has gained two neutrons
(c) The two oxygen atoms are isotopes
(d) The two oxygen atoms are isobars.
(e) None of the above

Q9. Which one of the following polymers is used for making bullet proof windows?
(a) Polycarbonates
(b) Polyurethanes
(c) Polystyrene
(d) Polyamides
(e) None of the above

Q10. Which one of the following forms an irreversible complex with haemoglobin of the blood?
(a) Carbon dioxide
(b) Pure Nitrogen gas
(c) Carbonmonoxide
(d) a mixture of carbon dioxide and helium
(e) None of the above

Solutions

S1.Ans. (d)
Sol. Mitochondria contain enzymes for cellular respiration. Mitochondria are known as the powerhouse of the cell. These are organelles that act like a digestive system which take nutrients, breaks them down, and creates energy for the cell. The process of creating cell energy is known as cellular respiration. Most of the chemical reactions involved in cellular respiration happen in the mitochondria.

S2.Ans. (d)
Sol. Calcium activates enzymes, is a structural component of cell walls, influences water movement in cells and is necessary for cell growth and division. Potassium helps in energy flow, manganese is involved in enzyme synthesis and phosphorus makes up backbone of genetic materials like DNA and RNA.

S3.Ans. (b)
Sol. Collenchymas provides malleability and flexibility to certain parts of the plants. Parenchyma is considered to be the soft tissue which makes most of the cell and sclerenchyma is the dead tissue which makes up fibre and provides rigidity to the cell.

S4.Ans. (c)
Sol. Blood plasma cells form 55 – 60% by volume of blood. Antibodies and some other substances such as lysozyme and properdin always occur in the plasma. They serve to destroy bacteria, viruses and toxic substances that may enter into the blood from outside or from body tissues.

S5.Ans. (b)
Sol. A long jumper runs before jumping to maintain momentum. This helps in jumping higher and longer because of inertia of motion gained due to the motion.

S6.Ans. (b)
Sol. We know that Potential energy = mgh Hence potential energy is maximum at the maximum height.

S7.Ans. (a)
Sol. n-heptane has octane number of 0.0 2-methyl heptane → 21.7 Iso-octane → 100.00 2, 2-dimethyl hexane → 72.5 36.

S8.Ans. (c)
Sol. Isotopes have same atomic number (number of protons) but different mass number (number of neutron + number of protons).

S9.Ans. (a)
Sol. Bullet-proof windows are constructed using several layers of polycarbonate and/or laminated glass.

S10.Ans. (c)
Sol. Carbon monoxide gas forms an irreversible complex with the haemoglobin of the blood.