The Role of Micro-Organisms and Symbiotic Relationships (Grade 11 NSC Matric Life Sciences): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
What do photosynthetic micro-organisms release as a waste product that other organisms use?
What do photosynthetic micro-organisms release as a waste product that other organisms use?
Oxygen
Which two types of micro-organisms are the main decomposers in nature?
Which two types of micro-organisms are the main decomposers in nature?
Bacteria and fungi
What are saprophytes?
What are saprophytes?
Decomposers living on dead matter
In what form must nitrogen be for plants to absorb it through their roots?
In what form must nitrogen be for plants to absorb it through their roots?
Nitrates
What type of symbiosis occurs when one organism benefits while the other is harmed?
What type of symbiosis occurs when one organism benefits while the other is harmed?
Parasitism
In lichens, what does the fungus provide to the algae?
In lichens, what does the fungus provide to the algae?
Protection from harsh conditions
Where do nitrogen-fixing bacteria live in leguminous plants like beans and peas?
Where do nitrogen-fixing bacteria live in leguminous plants like beans and peas?
In nodules on the roots
What essential vitamin do E. coli bacteria produce for humans in the intestine?
What essential vitamin do E. coli bacteria produce for humans in the intestine?
Vitamin K
How do mycorrhizal fungi help plants absorb nutrients more efficiently?
How do mycorrhizal fungi help plants absorb nutrients more efficiently?
Increase surface area for absorption
What do free-living bacteria convert atmospheric nitrogen gas into?
What do free-living bacteria convert atmospheric nitrogen gas into?
Ammonia and nitrates