Edexcel IGCSE Biology 2.1 The Levels of Organisation in Organisms Questions

Connect each level to its role: organelles are cell structures, tissues group similar cells, and organs contain different tissues working together.

Exam points

define organelles as cell structures with particular functions in labelled cell diagrams
explain why a named organ is made from several tissues carrying out a function
identify tissue as a collection of similar cells from image-based examples

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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.

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