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?

<p>It becomes the protective seed coat (D)</p> Signup and view all the answers

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

<p>Pteridosperms (C)</p> Signup and view all the answers

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

<p>Pinophyta (D)</p> Signup and view all the answers

What adaptation do seeds provide for plants on land?

<p>Supply of food for embryo (C)</p> Signup and view all the answers

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

<p>Needlelike and arranged in clusters (B)</p> Signup and view all the answers

What modification enables Conifers to survive harsh conditions?

<p>Hypodermis with thick-walled cells (A)</p> Signup and view all the answers

What type of wood does conifer wood belong to?

<p>Softwood (D)</p> Signup and view all the answers

Which structure produces microspores in conifers?

<p>Pollen cones (D)</p> Signup and view all the answers

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

<p>To add buoyancy in wind (A)</p> Signup and view all the answers

Where are megaspores produced in conifers?

<p>Ovules within seed cones (D)</p> Signup and view all the answers

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

<p>Two years (A)</p> Signup and view all the answers

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

<p>Deliver sperm to the female gametophyte (D)</p> Signup and view all the answers

What surrounds the megasporangium in conifers?

<p>Integument (D)</p> Signup and view all the answers

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