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Class 11 Biology questions for ICSE

Curriculum-aligned Biology questions for Class 11 under ICSE. Shortlist topics, practice at your pace, and make every answer count.

16questions available
Q01•Long Answer•[28 Marks]

Analyze the role of the respiratory system in maintaining homeostasis within the human body. Explain how various components of the respiratory system work together to facilitate gas exchange and discuss the physiological mechanisms that regulate breathing in response to different environmental conditions.

Q02•Long Answer•[28 Marks]

Discuss the significance of the cell theory in understanding the fundamental nature of life. Include specific examples to illustrate how this theory has modern biological research and its implications in fields such as medicine and biotechnology.

Q03•Short Answer•[5 Marks]

Summarize the cell theory and its significance in biology.

Q04•Short Answer•[5 Marks]

Explain the role of enzymes as biological catalysts, including factors affecting their activity.

Q05•Short Answer•[5 Marks]

Identify and describe the main features of gymnosperms and angiosperms.

Q06•Short Answer•[5 Marks]

Compare and contrast the characteristics of the Plantae and Animalia kingdoms.

Q07•Short Answer•[5 Marks]

Outline the five kingdom classification system, giving one example of an organism from each kingdom.

Q08•Short Answer•[5 Marks]

Describe the structure and function of nephrons in the excretory system.

Q09•Short Answer•[5 Marks]

Discuss the components of blood and their respective functions in circulation.

Q10•Short Answer•[5 Marks]

Explain the process of gas exchange in the human respiratory system, highlighting the role of alveoli.

Q11•MCQ•[2 Marks]

Which of the following is NOT considered a living organism?

ABacteria
BViruses
CPlants
DFungi
Q12•MCQ•[2 Marks]

Which of the following groups includes organisms that are unicellular and prokaryotic?

AMonera
BProtista
CAnimalia
Dnot good
Q13•MCQ•[2 Marks]

What is the main function of the kidneys in the excretory system?

ATo filter blood and produce urine.
BTo digest food.
CTo regulate body temperature.
DTo produce hormones.
Q14•MCQ•[2 Marks]

Which component of blood is primarily responsible for transporting oxygen?

APlasma
BRed blood cells
CPlatelets
DWhite blood cells
Q15•MCQ•[2 Marks]

What is the primary function of the cell membrane?

ATo control the movement of substances in and out.
BTo store genetic information.
CTo provide energy to the cell.
DTo synthesize proteins.
Q16•MCQ•[2 Marks]

Which of the following statements best describes the cell theory?

AAll living organisms are composed of cells.
BCells can arise from non-living matter.
CAll cells perform identical functions.
DCells are the smallest unit of life.
Class 11 Biology Questions for ICSE | QPaperLabs