Questions
1.) What were the green structures you saw in each Elodea cell? What is the function of these structures? Would you find these in animal cells? Why or why not?
These green structures in the Elodea cells are chloroplasts. Chloroplasts conduct photosynthesis so that the plant can obtain energy through the sun. Animals don't have chloroplast, because they obtain their energy through outside food sources such as other animals of plants.
2.) Compare nonvascular, seedless vascular, seed plants (gymnosperms) and seed plants (angiosperms). Angiosperms, also called flowering plants, have seeds that are enclosed within an ovary (usually a fruit), while gymnosperms have no flowers or fruits, and have unenclosed or “naked” seeds on the surface of scales or leaves. Gymnosperm seeds are often configured as cones. The characteristics that differentiate angiosperms from gymnosperms include flowers, fruits, and endosperm in the seeds.
3.) Using the kit in the classroom, identify leaves from angiosperms using the dichotomous key.
1.) American Sycamore
2.) Eastern Redbud
3.) Siberian Elm
4.) Eastern Cottonwood
5.) Osage Orange
6.) Silver Maple
7.) Scotch Pine
8.) Ginko
9.) Norway Maple
10.) Honey Locust
11.) Eastern Hemlock
12.) Little Leaf Linden
13.) Northern Red Oak
These green structures in the Elodea cells are chloroplasts. Chloroplasts conduct photosynthesis so that the plant can obtain energy through the sun. Animals don't have chloroplast, because they obtain their energy through outside food sources such as other animals of plants.
2.) Compare nonvascular, seedless vascular, seed plants (gymnosperms) and seed plants (angiosperms). Angiosperms, also called flowering plants, have seeds that are enclosed within an ovary (usually a fruit), while gymnosperms have no flowers or fruits, and have unenclosed or “naked” seeds on the surface of scales or leaves. Gymnosperm seeds are often configured as cones. The characteristics that differentiate angiosperms from gymnosperms include flowers, fruits, and endosperm in the seeds.
3.) Using the kit in the classroom, identify leaves from angiosperms using the dichotomous key.
1.) American Sycamore
2.) Eastern Redbud
3.) Siberian Elm
4.) Eastern Cottonwood
5.) Osage Orange
6.) Silver Maple
7.) Scotch Pine
8.) Ginko
9.) Norway Maple
10.) Honey Locust
11.) Eastern Hemlock
12.) Little Leaf Linden
13.) Northern Red Oak