Mcqs

Class 11 Biology Mcqs

Our 1000+ multiple choice questions and answers (MCQs) on "Biology - Class 11" (along with 1000+ MCQs on "Biology - Class 12") focus on all areas of Biology covering 200+ topics. One can read MCQs on Biology Class - 12 here. These topics are chosen from a collection of the most authoritative and best reference books on Biology. One should spend 1 hour daily practicing these MCQs for 2-3 months to learn and assimilate Biology subject comprehensively. This way of systematic learning will prepare anyone easily for Biology - Class 11 exams, contests, online tests, quizzes, MCQ-tests, viva-voce, interviews, and certifications.

 

Biology - Class 11 Multiple Choice Questions Highlights

  • 1000+ Multiple Choice Questions & Answers (MCQs) in Biology - Class 11 with a detailed explanation of every question.
  • These MCQs are organized chapterwise and each Chapter is further organized topicwise.
  • Every MCQ set focuses on a specific topic of a given Chapter in Biology - Class 11 Subject.
  • Class 11 Biology MCQ with answers in PDF format for all chapters based on the CBSE, ICSE, and NCERT Pattern.

 

Who should Practice Biology - Class 11 MCQs?

  • Students who are preparing for various school tests such as unit-tests, term-tests, semester tests, half-yearly and yearly tests and examinations on Biology - Class 11.
  • Students who are preparing for Online/Offline Tests/Contests in Biology for class 11.
  • Students who wish to sharpen their knowledge of Biology.
  • Students who are studying in CBSE, ICSE, IGCSE schools as well as various State Board schools.
  • Students who are preparing for competitive examinations such as NTSE, Olympiad, etc for class 11.
  • Students who are preparing for Central board examinations in Biology namely CBSE, ICSE, and NIOS Board.
  • Students who are preparing for State board examinations in Biology such as PUC, Intermediate exams, etc.
  • Students who are preparing for medical entrance examinations like NEET, AIIMS, JIPMER & SAT Exams in Biology.

 

Biology - Class 11 Chapters

Here's the list of chapters on the "Biology - Class 11" subject covering 100+ topics.

  • Class 11 Biology Chapter 1: The Living World
  • Class 11 Biology Chapter 2: Biological Classification
  • Class 11 Biology Chapter 3: Plant Kingdom
  • Class 11 Biology Chapter 4: Animal Kingdom
  • Class 11 Biology Chapter 5: Morphology of Flowering Plants
  • Class 11 Biology Chapter 6: Anatomy of Flowering Plants
  • Class 11 Biology Chapter 7: Structural Organisations in Animals
  • Class 11 Biology Chapter 8: The Unit of Life
  • Class 11 Biology Chapter 9: Biomolecules
  • Class 11 Biology Chapter 10: Cell Cycle and Cell Division
  • Class 11 Biology Chapter 11: Transport in Plants
  • Class 11 Biology Chapter 12: Mineral Nutrition
  • Class 11 Biology Chapter 13: Photosynthesis in Higher Plants
  • Class 11 Biology Chapter 14: Respiration in Plants
  • Class 11 Biology Chapter 15: Plant Growth and Development
  • Class 11 Biology Chapter 16: Digestion and Absorption
  • Class 11 Biology Chapter 17: Breathing and Exchange of Gases
  • Class 11 Biology Chapter 18: Body Fluids and Circulation
  • Class 11 Biology Chapter 19: Excretory Products and Elimination
  • Class 11 Biology Chapter 20: Locomotion and Movement
  • Class 11 Biology Chapter 21: Neural Control and Coordination
  • Class 11 Biology Chapter 22: Chemical Control and Coordination

 

Latest Popular
Q:

The receptor for estrogen is intracellular. True or false?

A) True B) False
 
Answer & Explanation Answer: A) True

Explanation: Estrogen is a steroid hormone secreted by the ovaries. Since it is a steroid hormone, estrogen can easily pass through the lipid bilayer of the cell membrane without a receptor. Thus its receptor lies in the cytoplasm, or the receptor is intracellular.

View Answer Discuss

Category: School MCQs
Sub Category: Class 11 Biology Mcqs

16
Q:

Which of these functions is not regulated by intracellular hormone-receptor complexes?

A) Regulation of gene expression B) Regulation of chromosome function
C) Interaction with the genome D) Regulation of K+ entry into the cell
 
Answer & Explanation Answer: D) Regulation of K+ entry into the cell

Explanation: Intracellular hormone-receptor complexes transmit signals mainly to the nucleus for the regulation of gene expression, regulation of chromosome function through indirect interaction with the genome.

View Answer Discuss

Category: School MCQs
Sub Category: Class 11 Biology Mcqs

14
Q:

IP₃ is a(n) _____

A) secondary messenger B) membrane receptor
C) intracellular receptor D) nuclear receptor
 
Answer & Explanation Answer: A) secondary messenger

Explanation: IP₃ is an important secondary messenger. When a hormone binds to a receptor, it forms a hormone receptor complex. This hormone receptor complex transmits a secondary signal inside the cell via secondary messengers.

View Answer Discuss

Category: School MCQs
Sub Category: Class 11 Biology Mcqs

17
Q:

Adrenaline is derived from ______

A) lipopolysaccharides B) amino acids
C) lipids D) sugars
 
Answer & Explanation Answer: B) amino acids

Explanation: Adrenaline or epinephrine is derived from amino acids. It is secreted by the outer cortex of the pair of adrenal glands. It is the emergency hormone secreted during a fight or flight response.

View Answer Discuss

Category: School MCQs
Sub Category: Class 11 Biology Mcqs

52
Q:

Hypothalamic hormones are ______

A) peptides B) steroids
C) iodothyronines D) amino acid derivates
 
Answer & Explanation Answer: A) peptides

Explanation: Hypothalamic hormones are peptides. They are secreted by the hypothalamus. Peptides, steroids, iodothyronines and amino acid derivatives are the different categories of hormones.

View Answer Discuss

Category: School MCQs
Sub Category: Class 11 Biology Mcqs

15
Q:

What type of hormone is glucagon?

A) Iodothyronines B) Steroids
C) Peptide D) Amino acid derivatives
 
Answer & Explanation Answer: C) Peptide

Explanation: Glucagon is a peptide hormone. It is synthesized and secreted by the alpha cells of the pancreas. The function of glucagon is to break glycogen into glucose. This raises the blood sugar level.

View Answer Discuss

Category: School MCQs
Sub Category: Class 11 Biology Mcqs

12
Q:

Which of these is false regarding receptors?

A) Intracellular receptors are present within the cell B) Receptors form complexes with hormones
C) Receptors disintegrate after contact with hormones D) Receptors are specific
 
Answer & Explanation Answer: C) Receptors disintegrate after contact with hormones

Explanation: Receptors are the structures of the cell to which hormones bind and form hormone-receptor complex. They do not disintegrate. Receptors are specific for each hormone. Intracellular receptors are present in the cytoplasm.

View Answer Discuss

Category: School MCQs
Sub Category: Class 11 Biology Mcqs

30
Q:

Hormone receptors are ______

A) glycolipids B) lipids
C) polysaccharides D) proteins
 
Answer & Explanation Answer: D) proteins

Explanation: Hormone receptors are proteinaceous in nature. These receptors are located on or inside the cells. It is where a hormone binds on a cell. The binding of the hormone signals the cells to perform their tasks.

View Answer Discuss

Category: School MCQs
Sub Category: Class 11 Biology Mcqs

14