General Science MCQs and Answers: General Science are very important for OPSC, OSSC, OSSSC & Other State Exams. Aspirants who are willing to apply for the various Government exams in 2022 must go through the topics of General Science for competitive exams, as General Science is a key part of the syllabus.
General Science MCQs
Q1. Which one of the following disease is caused by Protozoa?
(a) Malaria
(b) Cholera
(c) Jaundice
(d) None of these
Q2. Which among the following glands in the human body stores iodine? (a) Parathyroid
(b) Thyroid
(c) Pituitary
(d) Adrenal
Q3. Which one of the following is not the part of excretory system?
(a) Undigested food
(b) Urine
(c) Sweat
(d) Uric acid
Q4. The smallest filtering unit of kidney is
(a) Ureter
(b) Urethra
(c) Urinary bladder
(d) Nephron
Q5. Which of the following plants is referred to as a living fossil?
(a) Ephedra
(b) Cycas
(c) Ginkgo
(d) Adiantum
Q6. Which one of the following glands produces the growth hormone?
(a) Adrenal
(b) Pancreas
(c) Pituitary
(d) Thyroid
Q7. Foot and Mouth disease in animals, a current epidemic in some parts of the world, is caused by
(a) Bacterium
(b) Fungus
(c) Protozoan
(d) Virus
Q8. The branch of botany dealing with heredity and variation is known as
(a) Geobotany
(b) Sericulture
(c) Genetics
(d) Evolution
Q9. Which birds migrate to warmer regions during the winter and return during summer?
(a) Snow geese
(b) Arctic terns
(c) Plarmigans
(d) Both (a) & (b)
Q10. Which one ofthese is male reproductive organ in plants?
(a) Pistil
(b) Stamen
(c) Ovule
(d) Ovary
Q11. The reagent used to test the presence of starch in leaves is?
(a) Fehling’s solution.
(b) Iodine solution.
(c) Million’s reagent.
(d) Benedict’s solution.
Q12.Pulses are a good source of?
(a) Carbohydrates.
(b) Vitamins.
(c) Proteins.
(d)Fats.
Q13.Human conference-1972 was held at?
(a)Stockholm.
(b)Paris.
(C) Geneva.
(d) Australia.
Q14. The deficiency of Niacin-a-vitamimof B complex group causes the disease?
(a)Marasmus.
(b)Pellagra.
(c)Rickets.
(d) Night blindness.
Q15. Which among the following is the habitat of “Dog fish”?
(a)River.
(b)Sea.
(c)Lake.
(d)Marsh m
Solutions
S1. Ans.(a)
Sol.Malaria is caused by Protozoa.
Malaria is caused by a protozoan parasite called Plasmodium.
S2. Ans.(b)
Sol. Iodine is mostly concentrated in thyroid gland.
A healthy adult body contains 15-20 mg of iodine, 70-80% of which is stored in the thyroid gland.
S3. Ans.(a)
Sol.Undigested food is not the product of excretory system.
It is a part of process known as egestion that includes removal of undigested food matter.
S4. Ans.(d)
Sol.The smallest filtering unit of kidney is Nephron.
The nephron is the minute or microscopic structural and functional unit of the kidney.
It is composed of a renal corpuscle and a renal tubule.
S5. Ans.(c)
Sol.Ginkgo biloba also known as the maidenhair tree is often referred to as a “living fossil,” because it is the only remaining representative of a perished botanical family (the Ginkgoaceae) and is considered to be the oldest living tree species.
S6. Ans.(c)
Sol. Growth hormone is produced by the pituitary gland. It has many functions including maintaining normal body structure and metabolism.
S7. Ans.(d)
Sol. Foot-and-mouth disease (FMD) is a highly contagious virus disease of animals.
It is one of the most serious livestock diseases.
It affects cloven-hoofed animals, including domestic and wild bovids.
S8. Ans.(c)
Sol. The branch of biology that deals with the study of heredity and variation are known as Genetics.
S9. Ans.(d)
Sol. Snow geese and Arctic terns migrate to warmer regions during the winter and return during summer.
Thus, both (a) & (b) options are correct.
S10. Ans.(b)
Sol. The stamen is the male reproductive organ found in plants.
It consists of a pollen sac (anther) and a long supporting filament.
S1. (b)
Sol- Iodine test used to identify the presence of starch.
Iodine solution dissolved in a aqueous solution of starch producing a purple black color.
S2. (C)
Sol-Pulses are a good source of proteins. They are often relatively poor in the essential amino acid named as Methionine.
S3. (a)
Sol-UN conference on Human Environment-1972 was an international conference held on 5-16 , June, 1972 in Stockholm.
S4. (b)
Sol-Deficiency of vitamin B3 or niacin cause the disease Pellagra.
Pellagra disease inflamed the skin causes dementia.
The main source of vitamin B3 are meat, fish , egg , vegetable , and nuts.
S5. (b)
Sol-Spiny dogfish is an aquatic animals belongs to family of shark’s.
