220 Biology GK MCQ question & Answer in English

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220 Biology GK MCQ question & Answer in English हिन्दी

Biology is the science that studies life and its physicochemical processes. The research is separated into numerous branches for convenience, including botany, zoology, morphology, etc. Let's do a fun quiz about life science that will help us better our knowledge and prepare for competitive exams.

220. Which of the following is true of both eukaryotic and prokaryotic cells?

A. Both have a nucleus

B. Both contain mitochondria

C. Both have a plasma membrane

D. Both have membrane-bound organelles

219. What is the role of the nucleolus within the cell?

A. To synthesize ribosomal RNA

B. To encapsulate proteins

C. To transcribe DNA

D. To dismantle waste materials

218. What is the final product of cellular respiration?

A. Oxygen

B. Glucose

C. Water and carbon dioxide

D. ATP

217. What is the final product of glycolysis?

A. Acetyl-CoA

B. Pyruvate

C. Glucose

D. NADH

216. Which of the following is the primary source of genetic variation in populations?

A. Mitosis

B. Mutation

C. Apoptosis

D. Cytokinesis

215. Which of the following is true of both mitosis and meiosis?

A. Both processes produce four daughter cells

B. Both involve two rounds of cell division

C. Both processes involve DNA replication before division

D. Both result in genetically unique cells

214. What is the primary role of DNA in cells?

A. To synthesize proteins

B. To store genetic information

C. To control cell division

D. To generate energy

213. What is the role of ATP in the cell?

A. It stores genetic information

B. It serves as an energy currency for cellular processes

C. It aids in protein synthesis

D. It forms the cell membrane

212. Which of the following is true about the process of meiosis?

A. Meiosis results in the formation of two diploid cells

B. Meiosis occurs only in somatic cells

C. Meiosis results in the formation of four haploid cells

D. Meiosis results in identical daughter cells

211. Which type of RNA is used to carry genetic information from the DNA to the ribosome?

A. rRNA

B. mRNA

C. tRNA

D. miRNA

210. Which of the following is an example of a heterotroph?

A. Algae

B. Fungus

C. Plant

D. Cyanobacteria

209. To what is energy ultimately transferred within the electron transport chain of cellular respiration?

A. Glucose

B. Oxygen

C. NADH

D. Water

208. Which organelle does photosynthesis take place in plants?

A. Nucleus

B. Mitochondria

C. Chloroplast

D. Ribosome

207. Which of the following is a product of the light-dependent reactions of photosynthesis?

A. Glucose

B. Oxygen

C. Carbon dioxide

D. NADH

206. Which of the following describes a situation in which one allele completely masks the expression of another allele?

A. Codominance

B. Incomplete dominance

C. Complete dominance

D. Polygenic inheritance

205. What is the function of the smooth endoplasmic reticulum (SER)?

A. Synthesize proteins

B. Detoxify chemicals and synthesize lipids

C. Package proteins for transport

D. Store calcium ions

204. Which of the following processes is the movement of substances from an area of low concentration to high concentration?

A. Diffusion

B. Osmosis

C. Active transport

D. Facilitated diffusion

203. What structure is exclusively found in a plant cell?

A. Nucleus

B. Chloroplast

C. Mitochondria

D. Endoplasmic reticulum

202. Which of the following statements is correct regarding the mitotic process?

A. The end product of mitosis are two genetically identical cells

B. Mitosis only occurs in gametes

C. During mitosis four different daughter cells are produced

D. The mitotic process is divided into two divisional stages

201. What does the Golgi apparatus of the cell perform?

A. Produces proteins

B. Reorganize and package and also prepare for export proteins

C. Makes ATP

D. Stores heredity information

200. What is the primary difference between plant and animal cells?

A. Plant cells have chloroplasts, and animal cells do not

B. Animal cells have cell walls, and plant cells do not

C. Mitochondria present in plant cells, not found in animal cells

D. Lysosomes present in plant cells, but not found in animal cells

199. What is the primary role of the large central vacuole in plant cells?

A. Protein synthesis

B. ATP production

C. Storage of water and nutrients

D. Cellular respiration

198. That phase in a cell cycle whereby the cell begins to grow in size and operates normally

A. S stage

B. G1-stage

C. G2 -stage

D. M phase

197. The role of a ribosome is to carry on the synthesis process of a protein.

A. To transport amino acids to a ribosome.

B. It catalyzes the transcription process of mRNA.

C. Its role is that of an amalgamation of a polypeptide from amino acids.

D. It translates DNA into mRNA

196. Which of the white blood cells mainly performs the role of fighting infection?

A. To carry oxygen

B. To help in digestion

C. To fight infections

D. To transport nutrients

195. What type of organism makes its own food using sunlight?

A. Heterotroph

B. Autotroph

C. Prokaryote

D. Fungi

194. What is the primary role of the plasma membrane?

A. To store genetic information

B. To control the movement of substances in and out of the cell

C. To provide energy to the cell

D. To synthesize proteins

193. Which of the following regarding RNA and DNA is true?

A. RNA is double-stranded, while DNA is single-stranded

B. RNA contains uracil, while DNA contains thymine

C. RNA is composed of ribose, while DNA is made from deoxyribose

D. Both RNA and DNA consist of the four same nitrogenous bases

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