Plant Classification and Structures Quiz

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Questions and Answers

What is a monocot?

  • An angiosperm that has two seed leaves
  • A type of gymnosperm
  • An angiosperm that has only one seed leaf (correct)
  • A plant that produces seeds enclosed in fruits

What defines a dicot?

  • An angiosperm with only one seed leaf
  • A gymnosperm
  • A flowering plant without ovary
  • An angiosperm that has two seed leaves (correct)

What are stomata?

Small openings on the underside of a leaf that allow gas exchange.

What is the function of xylem?

<p>Carries water upward from the roots to every part of a plant.</p> Signup and view all the answers

What does phloem do?

<p>Carries sugar and organic substances throughout a plant.</p> Signup and view all the answers

Define vascular tissue.

<p>Plant tissue consisting of cells joined into tubes that transport water and nutrients.</p> Signup and view all the answers

What is water potential?

<p>The physical property predicting the direction in which water will flow.</p> Signup and view all the answers

What are angiosperms?

<p>A flowering plant which forms seeds inside a protective chamber called an ovary.</p> Signup and view all the answers

What defines gymnosperms?

<p>Plants that produce seeds that are exposed rather than enclosed in fruits.</p> Signup and view all the answers

What are gibberellins?

<p>A class of plant hormones that stimulate growth and fruit development.</p> Signup and view all the answers

What is the role of roots in vascular plants?

<p>Anchors the plant and enables it to absorb water and minerals from the soil.</p> Signup and view all the answers

What is the main role of leaves?

<p>The main organ of photosynthesis and transpiration in higher plants.</p> Signup and view all the answers

What is the function of plant veins?

<p>Transport water from roots to leaves and sugar from leaves to non-photosynthetic parts.</p> Signup and view all the answers

What is the purpose of a stem?

<p>A supporting structure that connects roots and leaves.</p> Signup and view all the answers

What are rhizomes?

<p>Horizontal underground stems.</p> Signup and view all the answers

What is a frond?

<p>A fern leaf; also refers to palm or banana leaf.</p> Signup and view all the answers

What is a cone?

<p>The reproductive structure of a gymnosperm.</p> Signup and view all the answers

What is the function of a flower?

<p>The reproductive structure of an angiosperm.</p> Signup and view all the answers

What is a pollen grain?

<p>The male gametophyte in seed plants.</p> Signup and view all the answers

What does pollination refer to?

<p>The transfer of pollen from male to female reproductive structures in plants.</p> Signup and view all the answers

What is a seed?

<p>An adaptation of some terrestrial plants consisting of an embryo and a store of food.</p> Signup and view all the answers

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Study Notes

Plant Classification

  • Monocots: Angiosperms characterized by a single seed leaf.
  • Dicots: Angiosperms that develop two seed leaves.

Plant Structures and Functions

  • Stomata: Microscopic openings on leaf undersides facilitating gas exchange; crucial for oxygen and carbon dioxide movement.
  • Xylem: Vascular tissue responsible for upward water transport from roots to all plant parts.
  • Phloem: Living vascular tissue that transports sugars and organic substances throughout the plant.
  • Vascular Tissue: Composed of tubular cells that move water and nutrients, essential for plant health.

Plant Properties and Processes

  • Water Potential: Determines water movement direction based on solute concentration and pressure; key in plant hydration and nutrient uptake.

Types of Seed Plants

  • Angiosperms: Flowering plants with seeds enclosed in an ovary; essential for fruit and seed development.
  • Gymnosperms: Seed-producing plants with exposed seeds, not enclosed in fruits.

Growth Regulators

  • Gibberellins: Hormones that promote stem and leaf growth, seed germination, bud dormancy breaking, and fruit development.

Plant Organs

  • Roots: Anchor plants and absorb water and minerals; foundational for plant stability and growth.
  • Leaves: Main sites for photosynthesis and transpiration; critical for energy production.
  • Stems: Structural support connecting roots and leaves, facilitating water and nutrient transportation.
  • Rhizomes: Horizontal underground stems that serve as storage and propagation organs.

Reproductive Structures

  • Frond: Refers to a fern leaf or leaves of palms and bananas.
  • Cone: Gymnosperm reproductive structure; crucial for seed production.
  • Flower: The reproductive structure of angiosperms; central to sexual reproduction in these plants.
  • Pollen Grain: Male gametophyte in seed plants; essential for fertilization.
  • Pollination: Process of transferring pollen from male to female structures; vital for seed production.
  • Seed: A protective package consisting of an embryo, nutrient store, and coat; essential for reproduction in terrestrial plants.

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