Note: To use this page as intended your browser must be JavaScript enabled.

Click on the question buttons (left) to navigate to the questions, type your answer in the text area provided below each question and then click the submit button (your answer will then appear below the text area). After answering a question, click on the answer button to view a sample answer. Compare your answer to the sample answer. If your answer is significantly different, I suggest you examine how you arrived at your answer. Instructions for saving this page with your responses.

Spore Dispersal Questions

Question 1

Submit Answer 1

Answer 1

In broad terms, a spore that is plain and smooth is dispersed in air. If the spore is carried in a gel or mucilage, then the spores may be dispersed in water, or on an animal. Spores that are carried on water tend to be highly divided, with a large surface area to volume ratio, and a waxy surface. Spores with a series of hooked projections are possibly carried by animals.

Top

Question 2

Submit Answer 2

Answer 2

Generally, the spores require protection from UV radiation so will have melanised walls. The walls must protect the spore from desiccation, so will be thick. Finally, the spore must be light enough to be carried in the air stream. It will probably be washed from the air, though deposition is also possible.

Top

Question 3

Submit Answer 3

Answer 3

No. Many spores and spore clusters are so heavy, that once ejected will fall back, regardless of the air current.

Top

Question 4

Submit Answer 4

Answer 4

The spores may either be washed away in rainfall or carried by a flying insect. It is most unlikely that the spores will become wind blown. One such fungus is found in forests in the winter following fire. The fungi form ectomycorrhizas. The sporocarps appear just at the surface of the soil. In this case, the spores are usually splashed away from the sporocarp by rain. However, as the spores are also in a sticky matrix, arthropods may disperse them.

Top

Question 5

Submit Answer 5

Answer 5

 

Top

Question 6

Submit Answer 6

Answer 6

 

Top

Question 7

Submit Answer 7

Answer 7

 

Top