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.

192. Which of the following is the main product of the Calvin cycle?

A. Oxygen

B. Glucose

C. ATP

D. NADPH

191. Which organelle is involved in cellular respiration?

A. Mitochondria

B. Ribosomes

C. Chloroplast

D. Nucleus

190. Which of the following is true about the process of transcription?

A. It converts RNA into DNA

B. It occurs in the nucleus

C. It occurs on the ribosome

D. It produces proteins from mRNA

189. Which of the following is NOT a characteristic of a prokaryotic cell?

A. No nucleus

B. Single circular chromosome

C. Presence of membrane-bound organelles

D. Smaller size

188. Which of the following is true about DNA replication?

A. It occurs in the G1 phase of the cell cycle

B. It results in the production of two RNA molecules

C. It results in the production of two identical DNA molecules

D. It requires the presence of ATP to happen

187. Meiosis does not involve DNA replication

A. Mitochondria

B. Ribosomes

C. Smooth endoplasmic reticulum

D. Golgi apparatus

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

A. Meiosis produces two identical daughter cells

B. Meiosis occurs in somatic cells

C. Meiosis results in four genetically unique gametes

D. Meiosis does not involve DNA replication

185. Which of the following represents the correct series of steps in cellular respiration?

A. Glycolysis → Electron transport chain → Krebs cycle

B. Glycolysis → Krebs cycle → Electron transport chain

C. Krebs cycle → Glycolysis → Electron transport chain

D. Electron transport chain → Glycolysis → Krebs cycle

184. What is the role of mitochondria in animal cells?

A. synthesize proteins

B. control cell division

C. produce ATP for energy

D. store nutrients

183. The light-independent reactions of photosynthesis are also called:

A. The Calvin cycle

B. The Krebs cycle

C. Glycolysis

D. The electron transport chain

182. Which of the following structures functions to give shape to a plant cell?

A. Mitochondria

B. Plasma membrane

C. Cytoplasm

D. Cell wall

181. Which of the following is a type of biological macromolecule?

A. Water

B. DNA

C. Salt

D. Oxygen

180. What is a change in the genetic material of a cell called?

A. Evolution

B. Mutation

C. Replication

D. Transcription

179. What is the process whereby glucose and oxygen are converted to carbon dioxide, water, and energy (ATP)?

A. Photosynthesis

B. Cellular respiration

C. Fermentation

D. Transpiration

178. Which of the following is the largest level of organization in ecology?

A. Organism

B. Population

C. Community

D. Biosphere

177. What is the main function of white blood cells?

A. Carry oxygen

B. Regulate the immune response

C. Clot the blood

D. Transport nutrients

176. Which of the following describes the role of mitochondria in cells?

A. Protein synthesis

B. Energy production (ATP synthesis)

C. Photosynthesis

D. Storage of nutrients

175. Which of the following macromolecules is primarily responsible for storing genetic information?

A. Carbohydrates

B. Proteins

C. Nucleic acids

D. Lipids

174. What is the term for the process by which plants lose water vapor through small openings in their leaves?

A. Transpiration

B. Evaporation

C. Condensation

D. Respiration

173. Which of the following is NOT an example of an enzyme?

A. Lactase

B. Amylase

C. DNA

D. Catalase

172. Which of the following is a function of the lymphatic system?

A. Pumping blood

B. Transporting oxygen

C. Removing waste products

D. Fighting infections

171. In which part of the cell does the process of cellular respiration take place?

A. Nucleus

B. Ribosome

C. Mitochondria

D. Golgi apparatus

170. Which structure controls the passage of substances into and out of the cell?

A. Cytoplasm

B. Plasma membrane

C. Nucleus

D. Ribosome

169. Which of the following terms describes the entire set of genes in an organism?

A. Genotype

B. Phenotype

C. Genome

D. Allele

168. What is the major cause of the greenhouse effect?

A. Destruction of the ozone layer

B. Increased carbon dioxide in the atmosphere

C. The decline in sunlight entering Earth

D. Increased forest clearing

167. Which of the following is an example of an ecosystem?

A. A forest

B. A tree

C. A group of birds

D. A patch of soil

166. What does the enzyme DNA polymerase do during DNA replication?

A. Unwind the double helix

B. Add nucleotides to the growing DNA strand

C. Join Okazaki fragments

D. Separate the DNA strands

165. Which of the following molecules is directly involved in the synthesis of proteins?

A. tRNA

B. DNA

C. mRNA

D. Both A and C

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220 Biology GK MCQ question & Answer in English हिन्दी

192. Which of the following is the main product of the Calvin cycle?

191. Which organelle is involved in cellular respiration?

190. Which of the following is true about the process of transcription?

189. Which of the following is NOT a characteristic of a prokaryotic cell?

188. Which of the following is true about DNA replication?

187. Meiosis does not involve DNA replication

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

185. Which of the following represents the correct series of steps in cellular respiration?

184. What is the role of mitochondria in animal cells?

183. The light-independent reactions of photosynthesis are also called:

182. Which of the following structures functions to give shape to a plant cell?

181. Which of the following is a type of biological macromolecule?

180. What is a change in the genetic material of a cell called?

179. What is the process whereby glucose and oxygen are converted to carbon dioxide, water, and energy (ATP)?

178. Which of the following is the largest level of organization in ecology?

177. What is the main function of white blood cells?

176. Which of the following describes the role of mitochondria in cells?

175. Which of the following macromolecules is primarily responsible for storing genetic information?

174. What is the term for the process by which plants lose water vapor through small openings in their leaves?

173. Which of the following is NOT an example of an enzyme?

172. Which of the following is a function of the lymphatic system?

171. In which part of the cell does the process of cellular respiration take place?

170. Which structure controls the passage of substances into and out of the cell?

169. Which of the following terms describes the entire set of genes in an organism?

168. What is the major cause of the greenhouse effect?

167. Which of the following is an example of an ecosystem?

166. What does the enzyme DNA polymerase do during DNA replication?

165. Which of the following molecules is directly involved in the synthesis of proteins?

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