Plant Biology Quiz

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Questions and Answers

Which organisms are predominantly photosynthetic?

  • Algae
  • Parasitic plants
  • Plants (correct)
  • Fungi

What is the clade Viridiplantae composed of?

  • Green algae and land plants (correct)
  • Parasitic plants and lycophytes
  • Mosses and conifers
  • Fungi and flowering plants

Which organisms have lost the genes for chlorophyll and photosynthesis?

  • Fungi
  • Mosses
  • Algae
  • Parasitic plants (correct)

What is the historical scope of the plant kingdom according to Aristotle's biology?

<p>All living things that were not animals, including algae and fungi (B)</p> Signup and view all the answers

What is the primary pigment used by plants in photosynthesis?

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

What is the opposite property of solubility?

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

How is the extent of solubility of a substance in a specific solvent generally measured?

<p>Concentration of the solute in a saturated solution (C)</p> Signup and view all the answers

When are two substances said to be at solubility equilibrium?

<p>When no more solute can be dissolved in the solvent (C)</p> Signup and view all the answers

In what state can the solute be, according to the text?

<p>Solid, liquid, or gas (D)</p> Signup and view all the answers

When can a solid or liquid be 'dissolved' in a gas?

<p>By passing into the gaseous state first (D)</p> Signup and view all the answers

Flashcards

Photosynthetic Organisms

Organisms capable of producing their own food through photosynthesis, primarily plants.

Viridiplantae

A clade encompassing both green algae, which are aquatic, and land plants, which live on land.

Parasitic Plants

Plants that have lost the ability to perform photosynthesis due to their parasitic lifestyle, relying on other plants for nourishment.

Chlorophyll

The primary pigment used by plants in photosynthesis, responsible for absorbing light energy.

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Insolubility

The property of a substance's inability to dissolve in a given solvent.

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Solubility

The measure of how much of a substance (solute) can dissolve in a specific solvent at a given temperature.

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Solubility Equilibrium

The state where the maximum amount of solute has dissolved in a solvent, and no more can be dissolved.

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Solute

The substance that dissolves in a solvent, can be solid, liquid or gas.

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Solvent

The substance that dissolves the solute, usually a liquid.

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Study Notes

Photosynthetic Organisms

  • Algae, cyanobacteria, and plants are predominantly photosynthetic

Clade Viridiplantae

  • The clade Viridiplantae is composed of land plants and green algae

Loss of Photosynthesis

  • Some organisms, such as Indian pipe plant and Venus flytrap, have lost the genes for chlorophyll and photosynthesis

Historical Scope of Plant Kingdom

  • According to Aristotle's biology, the plant kingdom historically included all organisms that were not animals

Photosynthesis

  • Chlorophyll is the primary pigment used by plants in photosynthesis

Solubility

  • Insolubility is the opposite property of solubility

Measuring Solubility

  • The extent of solubility of a substance in a specific solvent is generally measured by the concentration of the saturated solution

Solubility Equilibrium

  • Two substances are said to be at solubility equilibrium when the rate of dissolution equals the rate of precipitation

State of Solute

  • The solute can be in a solid, liquid, or gaseous state

Dissolving in a Gas

  • A solid or liquid can be 'dissolved' in a gas when it is in a state of vaporization or sublimation

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