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Bio 11 (2016-7) Lesson 43

Biology 11 (2016-17) L 43                          Date Thursday March 30

 

 

Last lessons Objective

 

 

1.   Comparing life cycles of aquatic and lower plants

2.   Role of water in reproduction and growth

3.   Introduction to Ethnobotany

 

Evaluation
Today’s Objectives 1.   Roots

2.   Stems

3.   Leafs

 

Topic

Number One

Roots

Vascular tissue: definition?

Drawing a cross section of roots.

What is the role of phloem and zylem?

Structures and function

Root tip and Root cap

Root hairs

Epidermal cell

Cortex

Pericycle

Phloem

Zylem

Vascular core

Vascular cambium

epidermis

What are three functions for roots

 

Topic

Number Two

Stems

How does the root structure change to become a stem?

Terminal bud

Apical Meristem

Respiratory structure on stem.

Changes in stems from gymno to angio sperm

Procambium

Cortex

Pith

Vascular cambium

Growth rings

Growth bundles

What is the role of xylem in gymnosperm?

Does a tree grow outward and or upward?

 

Topic

Number Three

Leaves

What is the primary function of a leaf?

How can leaves protect themselves?

How is a needle different than a leaf?

Leaf anatomy

Epidermis

Cuticle

Guard cell

Stoma

Mesophyll

Palisade parenchyma

Spongy parenchyma

Air space

Bundle sheath

Phloem

xylem

 

Note these structures need to be identified on your drawing and functions of each noted.

 

Text book Reference

 

Online and You tube Reference  

Plants: Stems, roots and leaves

https://www.youtube.com/watch?v=Pt6EC0K9SUA

Bozeman Plant Structure

https://www.youtube.com/watch?v=zHp_voyo7MY

prAP Plants

https://www.youtube.com/watch?v=qiMQ5or4q4c

 

 

 

Take Home Message What ecological and evolutionary advantages do plants gain by having diverse water moving tissues?

 

Are stems, roots and leaves tissues or organs?

 

posted by Marc Bernard Carmichael in Biology Eleven,Biology Eleven Lesson Outline and have No Comments

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