U6 Biolab WS gymnosperms

gymnosperms

What does the word gymnosperms mean?

“Naked seed”

How are gymnosperm seeds different from angiosperm seeds?

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In gymnosperms, the dominant generation of the life cycle is the: Gametophyte or the Sporophyte?

Sporophyte

Define the difference between pollination and fertilization

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What does it mean if a plant is monoecious? is this different from dioecious? how?

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What does it mean if a plant is dioecious? is this different from monoecious? how?

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Pine trees produce two different types of cones:

• Which cone produces pollen?

• Which cone contains the ovules that develop into seeds?

What structures contain the ovules and develop into seeds?

What adaptations help conifers survive in cold or dry climates?

What is the function of resin in pine needles?

Why are pine needles shaped like needles rather than broad leaves?

What advantages do the air bladders on pollen provide?

Pine Pollen; Draw & label:

• Pollen Grain

• Male Gametophyte

• Air Bladders (wings)

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Pine Fascicle; Draw and label:

• needle

• fascicle

• leaf sheath

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Pine Needle Cross-Section; Draw and label:

• cuticle

• epidermis

• stomata

• mesophyll

• resin duct

• endodermis

• vascular bundle

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