Quiz Review and Comparing Stems

Today we reviewed p. 471-475 for the quiz next class. We also read p. 499-502 and p.518-520 to find out how the stems of angiosperms have adapted differently from gymnosperms.

Homework:

• Ch 22 Quiz - gymnosperms vs. angiosperms & monocots vs. dicots next class (Thursday, Apr. 2)
• bring info to work on next class for your research project - due Wed., April 8
• write down your experiment project question that you will do your experiment on, whether you will do it on your own or with someone, and if with someone, with whom?

Monocots vs. Dicots, Coevolution and Pollination

Today we took notes on where monocots and dicots fit into Kingdom Plantae.
Click here to see these notes.

Then we made a picture chart comparing monocots and dicots, using the chart in the textbook, p.475. Finally, we found out that

• coevolution is when plants and their pollenators changing over time together, like a wasp and a orchid - the orchid has flowers that look like a female wasp and the male wasp pollinates it; coevolution increases the fitness of both organisms
• pollination is when pollen grains of a plant being moved/taken to the female part of the plant to fertilize it to produce a seed
• wind pollination is when wind carries the pollen
• vector pollination is when pollination occurs by the actions of animals, birds or insects
• pollination of a certain flower by a specific insect may first have begun accidently, but over time their coevolutionary relationship (between the insect and flowering plant) strengthened because it increased the fitness of both organisms
• seed dispersal is distributing seeds away from the parent plant (so that they can grow in a new location)
• plants have a variety of adaptations to help with seed dispersal

In class assignment: Section Review 22-3 (p.481) # 1-4

Homework:

• Write down your experiment project question that you will do your experiment on, whether you will do it on your own or with someone, and if with someone, with whom?
• work on research project - due Wed., April 8
• Ch 22 Quiz - gymnosperms vs. angiosperms & monocots vs. dicots next week (Thursday, Apr. 2)

Click here to see the plant projects criteria sheet.

Evolution of Plants & Gymnosperms

Today we reviewed what gymnosperms and angiosperms are and learned a little about how plants have evolved over millions of years. We took notes about this and about the three classes of gymnosperms.

Homework: Section Review 22-2 (p. 475) # 2-4

Seed-Bearing Plants

Today we got all our marked work back, including our Algae, Moss and Ferns Test. We went over test answers and then we began the next part of the Plant Unit: Plants With Seeds.

We also got introduced to two projects we will be doing this section, a research project and an experiment project. Click here to see the plant projects criteria sheet.

Lastly we had time to work on the Section Reviews for Chapter 22.

Homework due next class:

• Section Review 22-1 # 1, 4 (textbook, p. 470)
• Section Review 22-2 # 1 (textbook, p. 475)
• Decide on an experiment question that you will do your experiment project on, whether you will do it on your own or with someone, and if with someone, with whom?

Plants

Today we had the Algae, Moss and Ferns Test and then we took notes on the video, Plants.

Algae, Fungus, Moss Review

Today we went over answers for Sec. Review 22-1 and what would be on the test next Thursday.

Homework:

• p. 464 all,
• p.465 Concept Mastery #1, 3, 6
• p.465 Critical and Creative Thinking #2
• Algae, Moss and Fern TEST Thursday, Mar. 12

Moss and Lichen Scavenger Hunt

Today we did a scavenger hunt for lichen and the sporophyte and gametophyte of moss and looked under the microscope to see them up close. Sketches were finished in class.

Homework:

• complete Scavenger hunt/lab questions
• algae, moss and fern TEST next week, Thursday, March 12

Plant Transport and Movement

Today went over last day's homework assignment. Then we watched a video that explained:

• the tissues that move products of photosynthesis (glucose using phloem tisue) from the leaves to other parts of the plant
• the tissues that move water and minerals (using xylem tissue) up the plant from the roots to the leaves
• how water moves up in a plant: -as water evaporates from leaves (transpiration), this pulls water up from the roots; water helps to pull up other water molecules because water sticks to other water molecules (cohesion) and to the xylem cells (adhesion)
• how plants move in the direction of a stimulus (this type of movement is called tropism);for example - plants move and grow in the direction of the sun (phototropism); or another example - plants move as they grow, stem up but roots down toward gravity (geotropism)
• how plants move in response to a stimulus, but not necessarily in a specific direction (non directional movement) for examlpe, dandelion flowers close at night and open in the morning
• how plants move as they grow - nutational movement

Homework:

• textbook p.470 # 2 - 3
• Moss and Fern TEST next Thurs., Mar. 12