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.
Download ADDA247 Odia APP – Appear Latest Exam Test Series & Live Classes
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. Which of the following is the main end product of carbohydrate digestion?
(a) Fats
(b) Lipids
(c) Glucose
(d) Cellulose
Q12. Prothrombin, responsible for clotting of blood is released by_____.
(a) Small Intestine
(b) Blood Platelets
(c) Large Intestine
(d) Heart
Q13. Acacia arabica is the scientific name of
(a) Neem
(b) Teak
(c) Babhul
(d) Pomegranate
Q14. Cannis Vulpes is the scientific name of
(a) Dog
(b) Wolf
(c) Fox
(d) Hyena
Q15.The genetically modified (GM) food crops available in the international market are designed to have the
(a) Resistance to insect damage
(b) Resistance to viral damage
(c) Tolerance to certain herbicides
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.
S11. Ans.(c)
Sol. Carbohydrate digestion begins in the mouth and is complete when the polysaccharides are broken down into single sugars, or monosaccharides, which can be absorbed by the body. Examples of monosaccharides include glucose (dextrose), fructose (levulose) and galactose.
S12. Ans.(b)
Sol.Prothrombin is transformed into thrombin by a clotting factor known as factor X or prothrombinase; thrombin then acts to transform fibrinogen, also present in plasma, into fibrin, which, in combination with platelets from the blood, forms a clot (a process called coagulation).
S13. Ans.(c)
Sol.Vachellianilotica (commonly known as gum arabic tree, babul, thorn mimosa, Egyptian acacia or thorny acacia) is a tree in the family Fabaceae.
S14. Ans.(c)
Sol.Vulpes is a genus of the Canidae. The members of this genus are colloquially referred to as true foxes, meaning they form a proper clade. The word “fox” occurs on the common names of species.
S15. Ans.(d)
Sol. All GM crops available on the international market today have been designed using one of three basic traits: resistance to insect damage; resistance to viral infections; and tolerance towards certain herbicides. All the genes used to modify crops are derived from microorganisms.
