unit 2:plants
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Unit 2:Plants . Essential Questions. How do plants obtain water and nutrients needed for survival? How do plants minimize water loss through their leaves? What is photosynthesis and how is it accomplished? What factors affect the rate of photosynthesis?. - PowerPoint PPT PresentationTRANSCRIPT
Unit 2:Plants
Essential Questions
How do plants obtain water and nutrients needed for survival?
How do plants minimize water loss through their leaves?
What is photosynthesis and how is it accomplished?
What factors affect the rate of photosynthesis?
Day 1: Mineral and Water Uptake by Plants
Required Readings: 2.22, 2.27
Learning Objectives: To know that plants require minerals and what
their functions are To understand that water can enter and leave
cells by osmosis To understand that dissolved substances may
enter and leave cells by diffusion and active transport
Starter
Read the “Mineral Nutrients” informationChoose 5 minerals and explain why they are
important for plant growth and development.Time: 15 minutes
Activity 1
Design an experiment that would test how different mineral deficiencies affect the growth of a plant
Include: Question – what are you testing? Variables & control Method and materials Expected outcomes
Time: 20 minutes
Activity 2
How do fertilizers have a negative effect on the environment?
Research the various ways that fertilizers can be harmful to the environment and the other organisms that can be effected (with a partner).
Write a 1-2 page paper on the harms fertilizers can cause
Due: September 24Time: 30 minutes
Activity 3
Draw a picture (on paper provided) to show how water and minerals (ions) are taken into a plant.
Include: What processes are occurring? (What mode of
transport? There are 3 different ones occurring.)
The structures needed in order for this to happen
How does the shape of these structures allow the transport of water to occur?
Time: 20 minutes
Closing and Homework
Discuss the following questions: Why would farmers drain fields that are
susceptible to flooding? Why would farmers cover their fields with black
polythene? Why would they not cover it with white polythene?
Homework: Fertilizer paper (September 24)
Day 2
Required Readings: 2.28
Learning Objectives: To appreciate that water and dissolved
substances are transported around the plant in specialized transport tissues
Starter
Look at the microscope slides in the back of the conducting tissues
Draw a picture of what you seeHow do these structures accomplish water
and mineral transport?Time: 20 minutes
Activity 1
Create a slide of a piece of celery to view under the microscope
The celery needs to be thinly slicedDraw a diagram of what you seeTime: 20 minutes
Activity 2
Look at the picture of the potato plant.What is a source and what is a sink in plants?How can a potato be both?Time: 15 minutes
Activity 3
Create a concept map to show how various materials are transported from the roots to the leaves of a plant.
You may include diagrams/pictures as wellTime: 25 minutes
Closing and Homework
Discuss the following questions: What are the two vascular tissues in flowering
plants and what is their job? Why does the direction of sugar transport vary
from season to season? Why must sugar be transported to sinks?
Homework: Fertilizer paper (September 24)