Question 1(a)(ii)
[Maximum number: 1]
The image shows some cells from onion epidermis.
The onion cells in the image are all epidermis cells.
What is the term for a collection of cells of the same type?
A
organ
B
organism
C
system
D
tissue
IGCSE Biology 2.1 The levels of organisation in organisms Topic Practice
2.1 The levels of organisation in organisms
• Describe the levels of organisation in organisms: organelles, cells, tissues, organs and systems.
Question 1(c)
[Maximum number: 1]
Euglena is a microorganism that lives in water.
The diagram shows Euglena with some structures labelled.
Some of the labelled structures are known as organelles.
State what is meant by the term organelle.
Question 2(b)
[Maximum number: 1]
The diagram shows the position of some hormone producing glands in the female body.
The adrenal gland is an organ that secretes adrenaline.
State what is meant by the term organ.
Question 2(a)(ii)
[Maximum number: 1]
The diagram shows parts of the human respiratory system with some structures labelled.
State why a lung is described as an organ.
Question 7(a)
[Maximum number: 1]
The skin is an organ involved in temperature regulation.
State why the skin is described as an organ.