Biology HL

IB Questions

Dive into our extensive IB question bank, bookmark challenging problems, and revisit them regularly to reinforce your knowledge.

Question 1 of 10

Medium1 marks

What distinguishes the cell surface membrane from the nuclear membrane?

A
The cell surface membrane is found only in plant cells.
B
The cell surface membrane is found only in animal cells.
C
The cell surface membrane is a double membrane while the nuclear membrane is single.
D
The cell surface membrane is single while the nuclear membrane is double.

Question 2 of 10

Medium1 marks

What are the requirements for the active transportation of glucose into a cell?

Energy
Glucose concentration outside the cell
A
Energy needed
Higher concentration than inside
B
Energy needed
Any concentration
C
Energy not needed
Higher concentration than inside
D
Energy not needed
Any concentration

Question 3 of 10

Medium1 marks

What attribute is required for a membrane protein to be classified as intrinsic?

A
A pore in the centre of the protein
B
Non-polar hydrophobic regions
C
An associated carbohydrate
D
An associated lipid

Question 4 of 10

Medium1 marks

During which phases of mitosis do the subsequent occurrences transpire?

chromosomes move to poles of the cell
nuclear membrane breaks down
chromosomes uncoil and lengthen
A
Prophase
Metaphase
Anaphase
B
Metaphase
Telophase
Prophase
C
Telophase
Anaphase
Metaphase
D
Anaphase
Prophase
Telophase

Question 5 of 10

Easy1 marks

Who was the first scientist to coin the term "cell"?

A
Robert Hooke
B
Anton van Leeuwenhoek
C
Theodore Schwann
D
Rudolf Virchow

Question 6 of 10

Medium1 marks

What are the effects or consequences of an increase in the size of a cell?

A
The surface area to volume ratio increases.
B
The metabolic rate of the cell increases.
C
Heat exchange becomes more efficient.
D
Materials are not absorbed quickly enough for the cell’s needs.

Question 7 of 10

Easy1 marks

What is the only membrane-bound structure present within a prokaryotic cell?

A
Mesosome
B
Ribosome
C
Mitochondrion
D
Rough endoplasmic reticulum