A close association between fungi and algae

Lichens: A Symbiotic Relationship

Biology

This document describes the symbiotic relationship between fungi and algae in lichens, detailing the roles and contributions of each component.

Symbiosis Fungi Algae

10 Questions Easy Ages 8+ Aug 23, 2026

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About this Study Set

This study set covers Biology through 10 practice questions. This document describes the symbiotic relationship between fungi and algae in lichens, detailing the roles and contributions of each component. Every question includes the correct answer so you can learn as you go — pick any format above to get started.

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Browse all 10 questions from the Lichens: A Symbiotic Relationship study set below. Each question shows the correct answer — select a study format above to practice interactively.

1 What is a lichen?

A A single organism
B A close association between fungi and algae
C A type of plant
D A colony of bacteria

2 What is the fungal component of a lichen called?

A Phycobiont
B Mycobiont
C Algae
D Photosymbiont

3 What is the algal component of a lichen called?

A Mycobiont
B Fungus
C Phycobiont
D Chlorobiont

4 What role does the fungal component (mycobiont) play in a lichen?

A It performs photosynthesis
B It provides food for the algae
C It provides shelter to the algae
D It absorbs sunlight

5 What essential substances does the fungal component absorb for the lichen?

A Sunlight and carbon dioxide
B Water and minerals
C Oxygen and sugar
D Nitrogen and phosphorus

6 What is the primary function of the algal component (phycobiont) in a lichen?

A To provide shelter
B To absorb water and minerals
C To perform photosynthesis
D To protect the fungus

7 How does the algal component benefit its fungal partner?

A By providing shelter
B By absorbing water
C By performing photosynthesis and providing food
D By absorbing minerals

8 The term 'mycobiont' refers to which part of the lichen?

A The algal partner
B The fungal partner
C The entire lichen structure
D The reproductive structure

9 The term 'phycobiont' refers to which part of the lichen?

A The fungal partner
B The entire lichen structure
C The algal partner
D The symbiotic relationship

10 Lichens are an example of what type of biological interaction?

A Parasitism
B Competition
C Commensalism
D Symbiosis

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