Plants Learning Activities

Transport & Response Systems

• In the ‘Measuring Up to the Biology End-of-Course Exam’ Book:– Do Guided Questions from lesson 30 & 32; write

down the questions & answers in your notebook– Copy all diagrams except p. 221

Plant Experimental Design1. Design an experiment testing what response system most

influences growth in bean plants:– Thigmotropism– Phototropism– Gravitropism (Geotropism)

2. Use the following materials and write the steps of the experiment:– Cotton, Sprouting tray, Water, & Beans

3. Draw a diagram showing the set-up of the experiment– Label how each tropism tested– Draw and label xylem & phloem– Draw arrows showing the transport of water and arrows showing the

transport of sugar

4. Write how transport system supports the response system.5. Explain the importance of the experiment to a real world

ecological situation.

Plant Experimental Design1. Design an experiment testing what response system is most

influences growth in bean plants:– Thigmotropism– Phototropism– Gravitropism (Geotropism)

2. Use the following materials and write the steps of the experiment:– Cotton, Sprouting tray, Water, & Beans

3. Draw a diagram showing the set-up of the experiment– Label how each tropism tested– Draw and label xylem & phloem– Draw arrows showing the transport of water and arrows showing

the transport of sugar

4. Write how transport system supports the response system.5. Explain the importance of the experiment to a real world

ecological situation.

Reproductive System

• Explain the process pollination using the following terminology:– Pollen, Ovule, Sepals, Petals, Stamen, & Pistil

• Refer to the following video:– https://www.youtube.com/watch?v=HLYPm2idSTE

Title: Plant Reproduction in Angiosperms• Explain how the response system and

transport system helps the reproductive system.

Plants in Desert Environments

Homework

• Read the next slide• Look at the picture on the following slide• Do the Plant Adaptations Summary• Refer to iheartbiology.weebly.com

Dermal tissue covers the outside of a plant in a single layer of cells called the epidermis . You can think of the epidermis as the plant’s skin. It mediates most of the interactions between a plant and its environment. Epidermal cells secrete a waxy substance called cuticle, which coats, waterproofs, and protects the above-ground parts of plants. Cuticle helps prevent water loss, abrasions, infections, and damage from toxins.

This tissue includes several types of specialized cells. Pavement cells, large, irregularly shaped parenchymal cells which lack chloroplasts, make up the majority of the epidermis. Within the epidermis, thousands of pairs of bean-shaped schlerenchymal guard cells swell and shrink by osmosis to open and close stomata, tiny pores which control the exchange of oxygen and carbon dioxide gases and the release of water vapor. The lower surfaces of some leaves contain as many as 100,000 stomata per square centimeter.

The Stomata & Guard Cells

Plant Adaptations Summary

• In desert plants, is the stomata primarily open or closed during the day? At night? Explain why.

• Describe the amount of water in guard cells in desert plants during the day and at night.

• How do you think hot climates affect response system and transport system?