Cell – The Unit Of Life CLASS 11 BIOLOGY -

Created on August 09, 2025 By

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Cell – The Unit Of Life CLASS 11 BIOLOGY

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Cell – The Unit Of Life CLASS 11 BIOLOGY : A great worksheet Understanding cells is essential as they are the basic units of life. In Class 11 Biology, students explore different aspects of cells that constitute all living organisms. These microscopic structures are not just building blocks; they perform crucial functions vital for the organism’s survival.

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Tags: energy, function, mitochondria

A. What is the main function of mitochondria?

Producing energy (ATP)

Lipid synthesis

Protein synthesis

Storage of genetic material

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Category: Uncategorized

Tags: photosynthesis, plastids

B. What type of plastid is responsible for photosynthesis?

Leucoplast

Chloroplast

Chromoplast

Amyloplast

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Category: Uncategorized

Tags: cell theory, pre-existing cells

C. Which scientist proposed that all cells arise from pre-existing cells?

Robert Brown

Robert Hooke

Rudolf Virchow

Theodore Schwann

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Category: Uncategorized

Tags: cell membrane, fluidity

D. Which part of the cell membrane provides fluidity?

Proteins

Lipid bilayer

Cholesterol

Carbohydrates

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Category: How many oxygen atoms are present in one molecule of CO2?

Tags: ribosomal RNA, synthesis

E. In which part of the cell is ribosomal RNA synthesized?

Ribosome

Nucleolus

Cytoplasm

Nucleus

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Category: Uncategorized

Tags: organelles, prokaryotic cells

F. Which type of cells lack membrane-bound organelles?

Plant cells

Animal cells

Prokaryotic cells

Eukaryotic cells

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Category: Uncategorized

Tags: cell, unit of life

G. What is the basic structural and functional unit of life?

Organ

Tissue

Cell

Organ system

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Category: Uncategorized

Tags: cell theory, developers

H. The cell theory was developed by which scientists?

Schleiden and Schwann

Leeuwenhoek and Virchow

Virchow and Hooke

Robert Hooke and Robert Brown

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Category: Uncategorized

Tags: function, lysosome

I. Which organelle is known as the Sucide Bag?

Endoplasmic reticulum

Peroxisome

Golgi apparatus

Lysosome

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Category: Uncategorized

Tags: function, nucleus

J. What is the function of the nucleus in a cell?

Transport of materials

Protein synthesis

Controls cell activities

Energy production

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Category: Uncategorized

Tags: cell, discovery

K. Who discovered the cell?

Rudolf Virchow

Theodore Schwann

Antonie van Leeuwenhoek

Robert Hooke

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Category: Uncategorized

Tags: connection, plant cells

L. Which structure connects plant cells?

Desmosomes

Plasmodesmata

Tight junctions

Middle lamella

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Category: Uncategorized

Tags: cell division, spindle

M. What structure is responsible for spindle formation during cell division?

Centriole

Mitochondria

Nucleolus

Ribosome

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Category: Uncategorized

Tags: eukaryotes, organelles, prokaryotes

N. Which of the following organelles is present in both prokaryotic and eukaryotic cells?

Chloroplast

Mitochondria

Golgi apparatus

Ribosome

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Category: Uncategorized

Tags: function, Golgi apparatus

O. What is the function of the Golgi apparatus?

Digestion

Modification and packaging of proteins

Energy production

Protein synthesis

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Cell – The Unit Of Life CLASS 11 BIOLOGY