A2.2 Cell structure - IB Questionbank | RevisionDojo

A1.1 Water

A1.2 Nucleic acids

A2.1 Origins of cells (HL)

A2.2 Cell structure

A2.3 Viruses (HL)

A3.1 Diversity of organisms

A3.2 Classification and cladistics (HL)

A4.1 Evolution and speciation

A4.2 Conservation of biodiversity

A2.2 Cell structure Questionbank

Practice A2.2 Cell structure with authentic IB Biology exam questions for both SL and HL students. This question bank mirrors Paper 1A, 1B, 2 structure, covering key topics like cell biology, genetics, and ecology. Get instant solutions, detailed explanations, and build exam confidence with questions in the style of IB examiners.

Paper

Level

Question 1

SLPaper 1A

All cells possess a plasma membrane and DNA. What would be the most valid explanation for this structural conservation across all life forms?

Question 2

SLPaper 1A

Immunofluorescence microscopy is used to identify specific proteins in cells. What key feature allows this method to achieve high specificity?

Question 3

SLPaper 1A

Which structure is found in a Gram-positive eubacterium but not in a eukaryotic cell?

Question 4

SL & HLPaper 1A

The diagram shows an image of a cell, which organelle is responsible for lipid synthesis?

Question 5

SLPaper 1A

Which of the following could be a function of a membrane protein?

Question 6

HLPaper 1A

What is the structure shown in the diagram below?

Question 7

HLPaper 1A

Which combination of features is found in most plant and animal cells?

Question 8

SLPaper 1A

What describes the functions of the following organelles?

	Golgi apparatus	Rough endoplasmatic reticulum
A.	Synthesis of proteins for cell secretion	ATP production
B.	ATP production	Synthesis of proteins for cell secretion
C.	Synthesis of proteins for cell secretion	Processing of proteins
D.	Processing of proteins	Synthesis of proteins for cell secretion

Question 9

SL & HLPaper 1B

A scientist used an electron microscope to analyze different types of cells. The following observations were recorded:

Cell Type	Presence of Nucleus	Ribosome Size	Presence of Membrane-Bound Organelles
Cell A	No	70S	No
Cell B	Yes	80S	Yes

Based on the data, classify Cell A and Cell B as prokaryotic or eukaryotic. Justify your answer using two structural differences.

[2]

Explain how electron microscopes have contributed to our understanding of cell structure.

[2]

Question 10

SL & HLPaper 1A

The diagram shows the structure of a cell. What role does the lysosome play in this cell?

Paper

Level

Question 1

SLPaper 1A

All cells possess a plasma membrane and DNA. What would be the most valid explanation for this structural conservation across all life forms?

Question 2

SLPaper 1A

Immunofluorescence microscopy is used to identify specific proteins in cells. What key feature allows this method to achieve high specificity?

Question 3

SLPaper 1A

Which structure is found in a Gram-positive eubacterium but not in a eukaryotic cell?

Question 4

SL & HLPaper 1A

The diagram shows an image of a cell, which organelle is responsible for lipid synthesis?

Question 5

SLPaper 1A

Which of the following could be a function of a membrane protein?

Question 6

HLPaper 1A

What is the structure shown in the diagram below?

Question 7

HLPaper 1A

Which combination of features is found in most plant and animal cells?

Question 8

SLPaper 1A

What describes the functions of the following organelles?

	Golgi apparatus	Rough endoplasmatic reticulum
A.	Synthesis of proteins for cell secretion	ATP production
B.	ATP production	Synthesis of proteins for cell secretion
C.	Synthesis of proteins for cell secretion	Processing of proteins
D.	Processing of proteins	Synthesis of proteins for cell secretion

Question 9

SL & HLPaper 1B

A scientist used an electron microscope to analyze different types of cells. The following observations were recorded:

Cell Type	Presence of Nucleus	Ribosome Size	Presence of Membrane-Bound Organelles
Cell A	No	70S	No
Cell B	Yes	80S	Yes

Based on the data, classify Cell A and Cell B as prokaryotic or eukaryotic. Justify your answer using two structural differences.

[2]

Explain how electron microscopes have contributed to our understanding of cell structure.

[2]

Question 10

SL & HLPaper 1A

The diagram shows the structure of a cell. What role does the lysosome play in this cell?