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Gymnosperms: Chapter 22 Lecture Outline Quiz

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Gymnosperms: Chapter 22 Lecture Outline Quiz

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Questions and Answers

What is the main characteristic of gymnosperms?

Seeds are exposed on the surface of sporophylls (correct)

Seeds produced inside a fruit

Seeds are enclosed within a protective seed coat

Pollen cones that produce pollen grains

What is the human relevance of gymnosperms?

They are a source of wood for construction (correct)

They are important in the production of pharmaceuticals

They are used in the production of textiles

They produce fruits for human consumption

Which phylum includes Ginkgo trees?

Phylum Gnetophyta

Phylum Ginkgophyta (correct)

Phylum Cycadophyta

Phylum Pinophyta

What happens to the integument after fertilization in gymnosperms?

It becomes the protective seed coat Signup and view all the answers

Which group of plants is known as the seed ferns, but was later reclassified as gymnosperms?

Pteridosperms Signup and view all the answers

Which phylum includes the world's oldest known living organisms, the Bristlecone pines?

Pinophyta Signup and view all the answers

What adaptation do seeds provide for plants on land?

Supply of food for embryo Signup and view all the answers

What is the main characteristic of the leaves of Pines (Pinus)?

Needlelike and arranged in clusters Signup and view all the answers

What modification enables Conifers to survive harsh conditions?

Hypodermis with thick-walled cells Signup and view all the answers

What type of wood does conifer wood belong to?

Softwood Signup and view all the answers

Which structure produces microspores in conifers?

Pollen cones Signup and view all the answers

What is the main function of air sacs in a pollen grain in conifers?

To add buoyancy in wind Signup and view all the answers

Where are megaspores produced in conifers?

Ovules within seed cones Signup and view all the answers

How long does it take for seed cones in conifers to mature?

Two years Signup and view all the answers

What is the main function of a pollen tube in conifers?

Deliver sperm to the female gametophyte Signup and view all the answers

What surrounds the megasporangium in conifers?

Integument Signup and view all the answers