524 MCQ Questions in english

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524 MCQ Questions in english हिन्दी

356. The components of hemoglobin, chlorophyll, chalcopyrite, and vitamin B12 are, in order, as follows:

A. Magnesium, Iron, Cobalt, Copper

B. Iron, Copper, Magnesium, Cobalt

C. Iron, Cobalt, Copper, Magnesium

D. Iron, Magnesium, Copper, Cobalt

355. Which portion of the Papaver somniferum plant's dry latex is used to make opium?

A. Poppy

B. Stem

C. Leaves

D. Stem joints

354. The average life span of Human Red Blood Cells (RBC) is –

A. 45 days

B. 60 days

C. 90 days

D. 120 days

353. Which of the following is in charge of the natural process that turns milk into curd?

A. Virus

B. Fungi

C. Bacteria

D. Algae

352. Xerophthalmia is brought on by a vitamin deficit.

A. C

B. A

C. K

D. D

351. Which of the following eco-systems has the biggest surface area on the planet?

A. Mountain Ecosystem

B. Marine Ecosystem

C. Grassland Ecosystem

D. Desert Ecosystem

350. The bees have the following acid –

A. Glutaric

B. Acetic

C. Citric

D. Formic

349. Mycobacterium leprae causes leprosy, Corynebacterium diphtheria causes diphtheria, and Vibrio comma causes

A. typhoid

B. tetanus

C. influenza

D. cholera

348. An enzyme called ptyalin is created in the

A. salivary glands

B. pituitary glands

C. thyroid glands

D. pancreas

347. In ecosystems, nitrogen is fixed in the manner listed below. Which of the following assertions is untrue?

A. By electrical discharges in the atmosphere

B. By cyanobacteria

C. By industrially synthesised fertilizer

D. By denitrification

346. Plants generate pollen grains in

A. roots

B. leaves

C. stem

D. flower

345. Pollination by wind is called

A. zoophily

B. anemophily

C. hydrophily

D. entomophily

344. Mutation is

A. a factor responsible for plant growth

B. a factor responsible for plant growth

C. a change that is inherited

D. a change which affects the parents

343. Classes of enzymes include oxidoreductases, transferases, hydrolases, lyases, isomerases, and ligases.

A. enzymes

B. hormones

C. proteins

D. vitamins

342. The name of the young one is called a

A. cockroach

B. housefly

C. beetle

D. butterfly

341. Plants that thrive in conditions of typical humidity and temperature are referred to as

A. halophytes

B. halophytes

C. mesophytes

D. xerophytes

340. a protein referred to as a transporter of oxygen in our blood

A. myoglobin

B. collagen

C. keratin

D. haemoglobin

339. Pulses are a good source of

A. vitamins

B. proteins

C. fats

D. carbohydrates

338. The best option for studying mutations is one of the following

A. Haploids

B. Diploids

C. Tetraploids

D. Polyploid

337. Chromosome count for Down syndrome is

A. 46

B. 47

C. 48

D. 49

336. Mumps is a disease caused by

A. fungus

B. virus

C. bacterium

D. None of these

335. The majority of our body's tissues are

A. nervous

B. epithelial

C. connective

D. muscular

334. The most typical poultry illness in India is

A. ranikhet

B. fowl pox

C. tick fever

D. coryza

333. Radish is a

A. bulb

B. conn

C. modified root

D. tuber

332. The outer covering of the virus made up of protein is

A. coat

B. virion

C. viriod

D. capsid

331. Light-related motions are depicted by

A. flowering plants

B. lower plants

C. all the plants

D. all land plants

330. Our major foods, fibers, spices, fruits, and beverage crops are

A. gymnosperms plants

B. flowering plants

C. pteridophytes

D. bryophytes

329. Organic Substances that regulate growth and development in extremely small doses are referred to as

A. vitamins

B. hormones

C. enzymes

D. None of the above

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