10445+ MCQ Questions in english

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10445+ MCQ Questions in english हिन्दी

5685. The light-independent reactions of photosynthesis are also called:

A. The Calvin cycle

B. The Krebs cycle

C. Glycolysis

D. The electron transport chain

5684. Which of the following structures functions to give shape to a plant cell?

A. Mitochondria

B. Plasma membrane

C. Cytoplasm

D. Cell wall

5683. Which of the following is a type of biological macromolecule?

A. Water

B. DNA

C. Salt

D. Oxygen

5682. What is a change in the genetic material of a cell called?

A. Evolution

B. Mutation

C. Replication

D. Transcription

5681. 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

5680. Which of the following is the largest level of organization in ecology?

A. Organism

B. Population

C. Community

D. Biosphere

5679. What is the main function of white blood cells?

A. Carry oxygen

B. Regulate the immune response

C. Clot the blood

D. Transport nutrients

5678. 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

5677. Which of the following macromolecules is primarily responsible for storing genetic information?

A. Carbohydrates

B. Proteins

C. Nucleic acids

D. Lipids

5676. 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

5675. Which of the following is NOT an example of an enzyme?

A. Lactase

B. Amylase

C. DNA

D. Catalase

5674. Which of the following is a function of the lymphatic system?

A. Pumping blood

B. Transporting oxygen

C. Removing waste products

D. Fighting infections

5673. In which part of the cell does the process of cellular respiration take place?

A. Nucleus

B. Ribosome

C. Mitochondria

D. Golgi apparatus

5672. Which structure controls the passage of substances into and out of the cell?

A. Cytoplasm

B. Plasma membrane

C. Nucleus

D. Ribosome

5671. Which of the following terms describes the entire set of genes in an organism?

A. Genotype

B. Phenotype

C. Genome

D. Allele

5670. 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

5669. 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

5668. 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

5667. Which of the following molecules is directly involved in the synthesis of proteins?

A. tRNA

B. DNA

C. mRNA

D. Both A and C

5666. Osmosis brings about the entry of water into the cell through what type of solution, thereby making the cell swell?

A. Isotonic

B. Hypotonic

C. Hypertonic

D. None of the above

5665. Which of the following best describes a codon?

A. A segment of DNA that codes for a protein

B. A three-nucleotide sequence in mRNA that specifies an amino acid

C. A segment of RNA that carries amino acids to the ribosome

D. A molecule that catalyzes protein synthesis

5664. Which of the following describes a cell that is considered "haploid"?

A. Two sets of chromosomes

B. One set of chromosomes

C. No chromosomes

D. Four sets of chromosomes

5663. At which stage of meiosis does crossing over occur?

A. Prophase I

B. Metaphase I

C. Anaphase II

D. Telophase II

5662. What is the function of a ribosome in a cell?

A. It provides genetic information

B. It assists in protein synthesis

C. It generates ATP

D. It stores energy

5661. Which of the following can be classified as a by-product of fermentation?

A. Oxygen

B. Lactic acid

C. Water

D. Carbon dioxide and glucose

5660. Which of the following is NOT true about RNA?

A. RNA is single-stranded

B. RNA uses uracil instead of thymine

C. RNA contains deoxyribose sugar

D. RNA is used in protein synthesis

5659. In the scientific name Homo sapiens, "Homo" represents the:

A. Species

B. Kingdom

C. Family

D. Genus

5658. Which of the following statements is true regarding asexual reproduction?

A. It requires two parent organisms

B. Offspring are genetically identical to the parent

C. It involves the fusion of gametes

D. It results in genetic diversity

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Subjectwise MCQ

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10445+ MCQ Questions in english हिन्दी

5685. The light-independent reactions of photosynthesis are also called:

5684. Which of the following structures functions to give shape to a plant cell?

5683. Which of the following is a type of biological macromolecule?

5682. What is a change in the genetic material of a cell called?

5681. What is the process whereby glucose and oxygen are converted to carbon dioxide, water, and energy (ATP)?

5680. Which of the following is the largest level of organization in ecology?

5679. What is the main function of white blood cells?

5678. Which of the following describes the role of mitochondria in cells?

5677. Which of the following macromolecules is primarily responsible for storing genetic information?

5676. What is the term for the process by which plants lose water vapor through small openings in their leaves?

5675. Which of the following is NOT an example of an enzyme?

5674. Which of the following is a function of the lymphatic system?

5673. In which part of the cell does the process of cellular respiration take place?

5672. Which structure controls the passage of substances into and out of the cell?

5671. Which of the following terms describes the entire set of genes in an organism?

5670. What is the major cause of the greenhouse effect?

5669. Which of the following is an example of an ecosystem?

5668. What does the enzyme DNA polymerase do during DNA replication?

5667. Which of the following molecules is directly involved in the synthesis of proteins?

5666. Osmosis brings about the entry of water into the cell through what type of solution, thereby making the cell swell?

5665. Which of the following best describes a codon?

5664. Which of the following describes a cell that is considered "haploid"?

5663. At which stage of meiosis does crossing over occur?

5662. What is the function of a ribosome in a cell?

5661. Which of the following can be classified as a by-product of fermentation?

5660. Which of the following is NOT true about RNA?

5659. In the scientific name Homo sapiens, "Homo" represents the:

5658. Which of the following statements is true regarding asexual reproduction?

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