Introduction to Biology

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Questions and Answers

What is the scientific study of life called?

  • Chemistry
  • Geology
  • Biology (correct)
  • Physics

Which of the following is a core principle of biology?

  • Heliocentric theory
  • Cell theory (correct)
  • String theory
  • Atomic theory

Which molecule carries hereditary information?

  • Protein
  • Lipid
  • DNA (correct)
  • Carbohydrate

What is the process by which life changes over time?

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

What is the maintenance of a stable internal environment called?

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

Which of the following is an example of an organic molecule?

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

What is the basic unit of life?

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

Which type of cell lacks a nucleus?

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

Which organelle generates energy (ATP) in the cell?

<p>Mitochondria (B)</p> Signup and view all the answers

What is the process of copying DNA into RNA called?

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

Flashcards

What is Biology?

The scientific study of life.

Cell Theory

All living organisms are composed of cells.

Gene Theory

Hereditary information is encoded in DNA and genes.

Evolution

Life evolves over time through natural selection.

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Homeostasis

Living organisms maintain a stable internal environment.

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Organic Molecules

Molecules containing carbon, essential for life.

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Prokaryotic Cells

Simple cells lacking a nucleus.

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Eukaryotic Cells

Complex cells with a nucleus and organelles.

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Enzymes

Proteins that catalyze (speed up) chemical reactions.

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Cellular Respiration

The process of breaking down glucose to produce ATP (energy).

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