Download Moss Life Cycle

Moss Life Cycle
Name - ____________________
Partner - ____________________
1a.) Obtain a “leaf” from a living moss plant and observe it under the microscope. Sketch and label one
“leaf” in the circle .
b.) What is the chromosomes or “ploidy” number of the leaf
cells? ________
2a.) Sketch and label the archegonial “head” in one circle and the antheridial head in the second circle.
b.) What is produced in the archegonia? ______________
c.) What is produced in the antheridium? _____________
d.) What is the “ploidy” number of the above 2 products? ________________________________
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e.) How does the sperm reach the egg? Explain. ________________________________________
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f.) The fertilized egg develops into? _______________
3a.) Sketch and label the sporophyte.
b.) The ploidy number of the sporophyte is? _________
c.) What does the sporophyte produce? ____________
d.) What type of cell division occurs in the sporangium? ________________
e.) What is the ploidy number of the spores? ________
4a.) Sketch a germinating spore.
b.) How is a spore different from a seed? _____________________________________________
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5.) Draw the generalized life cycle of a moss, and label the parts.
6.) In a table, compare mosses to algae (structure, reproduction, habitat etc.).
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