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#biochemistry

639 public questions tagged with this topic.

ZOOLOGY

Which protein is most abundant in the human body?

Collagen is the most abundant protein in the human body, providing structural support to connective tissues. This follows from latest NCERT 2026-27 principle explaining the concept clearly for NEET students in simple steps as per rationalized syllabus.

Ref: NCERT Biology Textbook - Latest Edition for Academic Session 2026-27 (Zoology section, Rationalized Textbook for Class XI and XII), Chapter: Biology - Zoology portion (Latest NCERT Textbooks for Academic Session 2026-27 - Rationalized Edition for Class XI and XII), Topic: Structural organization, physiology, human health and related concepts as per latest syllabus.

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ZOOLOGY

Which of the following statements about amino acids is correct?

Amino acids contain an amino (-NH₂) group and a carboxyl (-COOH) group. They are linked by peptide bonds, not glycosidic bonds. This follows from NCERT principle where relation explains outcome clearly for students.

Ref: NCERT Biology Textbook for Class XI and XII (Zoology section), Chapter: Biology - Zoology portion covering relevant system and function, Topic: Structural organization and physiology.

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ZOOLOGY

Which of the following statements about amino acids is correct?

Amino acids contain an amino (-NH₂) group and a carboxyl (-COOH) group and are linked by peptide bonds, not phosphodiester bonds. This follows from NCERT principle where relation explains outcome clearly for students.

Ref: NCERT Biology Textbook for Class XI and XII (Zoology section), Chapter: Biology - Zoology portion covering relevant system and function, Topic: Structural organization and physiology.

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ZOOLOGY

Which of the following statements about amino acids is correct?

Amino acids are the building blocks of proteins. They contain nitrogen, a carboxyl group, and are linked by peptide bonds, not glycosidic bonds. This follows from latest NCERT 2026-27 principle explaining the concept clearly for NEET students in simple steps as per rationalized syllabus.

Ref: NCERT Biology Textbook - Latest Edition for Academic Session 2026-27 (Zoology section, Rationalized Textbook for Class XI and XII), Chapter: Biology - Zoology portion (Latest NCERT Textbooks for Academic Session 2026-27 - Rationalized Edition for Class XI and XII), Topic: Structural organization, physiology, human health and related concepts as per latest syllabus.

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ZOOLOGY

Which enzyme catalyzes the breakdown of hydrogen peroxide into water and oxygen?

Peroxidase is an enzyme that catalyzes the decomposition of hydrogen peroxide into water and oxygen. This follows from latest NCERT 2026-27 principle explaining the concept clearly for NEET students in simple steps as per rationalized syllabus.

Ref: NCERT Biology Textbook - Latest Edition for Academic Session 2026-27 (Zoology section, Rationalized Textbook for Class XI and XII), Chapter: Biology - Zoology portion (Latest NCERT Textbooks for Academic Session 2026-27 - Rationalized Edition for Class XI and XII), Topic: Structural organization, physiology, human health and related concepts as per latest syllabus.

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ZOOLOGY

Which of the following statements about ATP is incorrect?

ATP provides energy through the hydrolysis of phosphate bonds, not peptide bonds. This follows from NCERT principle where the relation explains the outcome clearly for students in simple steps.

Ref: NCERT Biology Textbook for Class XI and XII (Zoology section), Chapter: Biology - Zoology portion covering relevant system and function.

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BOTANY

Which of the following statements about ATP is INCORRECT?

ATP is produced in both the cytoplasm (glycolysis) and mitochondria (aerobic respiration). This follows from NCERT principle where the relation explains the outcome clearly for students in simple steps.

Ref: NCERT Biology Textbook for Class XI and XII (Botany section), Chapter: Morphology and Anatomy of Flowering Plants, Topic: Plant structure and tissue systems.

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CHEMISTRY

In maltose, the glycosidic linkage is between:

Maltose consists of two α-D-glucose units linked by a C₁-C₄ glycosidic bond, leaving a free aldehyde group, making it a reducing sugar. This follows from NCERT principle where the relation explains the outcome clearly for students in simple steps.

Ref: NCERT Chemistry Textbook for Class XI and XII, Chapter: Relevant Chemistry topic covering principles and examples as per NCERT.

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ZOOLOGY

Which of the following elements is a major component of nucleic acids but is not found in carbohydrates?

Nitrogen is a key component of nucleic acids (DNA & RNA) but is absent in carbohydrates. This follows from NCERT principle where the relation explains the outcome clearly for students in simple steps.

Ref: NCERT Biology Textbook for Class XI and XII (Zoology section), Chapter: Principles of Inheritance, Molecular Basis of Inheritance and Biotechnology, Topic: Genetics, DNA techniques and applications.

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ZOOLOGY

Which of the following is a structural polysaccharide in fungi?

Chitin is a structural polysaccharide found in fungal ll walls and the exoskeleton of arthropods. This follows from NCERT principle where the relation explains the outcome clearly for students in simple steps.

Ref: NCERT Biology Textbook for Class XI and XII (Zoology section), Chapter: Biology - Zoology portion covering relevant system and function.

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