Biology Flashcards: Macromolecules
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Questions and Answers

What is a carbohydrate?

Starch, cellulose, glucose, glycogen and other sugars; composed of carbon, hydrogen, and oxygen

What are lipids?

Storage for energy, fats, oils, waxes; composed of carbon, hydrogen, oxygen

What are proteins?

Controls rate of chemical reactions, regulates cell processes; composed of carbon, hydrogen, oxygen, nitrogen

What are nucleic acids?

<p>DNA and RNA; composed of carbon, hydrogen, oxygen, nitrogen, phosphorus</p> Signup and view all the answers

What elements are found in proteins?

<p>CHON (carbon, hydrogen, oxygen, nitrogen)</p> Signup and view all the answers

What elements are found in carbohydrates?

<p>CHO (carbon, hydrogen, oxygen)</p> Signup and view all the answers

What elements are found in lipids?

<p>CHO (carbon, hydrogen, oxygen)</p> Signup and view all the answers

What are the elements found in nucleotides?

<p>CHONP (carbon, hydrogen, oxygen, nitrogen, phosphorus)</p> Signup and view all the answers

What are the functions of nucleic acids?

<p>Carry genetic information from generation to generation; control what goes on in the cell</p> Signup and view all the answers

What are the functions of proteins?

<p>Enzymes run reactions in the cell; proteins transport materials like oxygen and carbon dioxide; proteins help to fight infections (antibodies)</p> Signup and view all the answers

What are the functions of carbohydrates?

<p>Energy source; in plants cellulose makes up the cell wall</p> Signup and view all the answers

What are the functions of lipids?

<p>Long-term energy storage; insulation, cushion organs, important in cell membranes</p> Signup and view all the answers

What does Atomic # represent?

<h1>of protons/electrons - they each have the same amount</h1> Signup and view all the answers

What is Atomic Mass #?

<p>p + n</p> Signup and view all the answers

What do Protons (P) equal?

<p>Atomic mass</p> Signup and view all the answers

What do Electrons (E) equal?

<p>The number of protons</p> Signup and view all the answers

What are Neutrons?

<p>The atomic mass - p</p> Signup and view all the answers

What does Atomic # indicate?

<p>Is almost always the smaller of the two numbers</p> Signup and view all the answers

What does Atomic Mass indicate?

<p>The larger of the two numbers</p> Signup and view all the answers

Study Notes

Carbohydrates (CHO)

  • Composed of carbon, hydrogen, and oxygen.
  • Examples include starch, cellulose, glucose, and glycogen.
  • Function as an energy source and structural component for plants (cellulose in cell walls).

Lipids (CHO)

  • Made up of carbon, hydrogen, and oxygen.
  • Include fats, oils, and waxes.
  • Serve as long-term energy storage, provide insulation, cushion organs, and are integral to cell membranes.

Proteins (CHON)

  • Composed of carbon, hydrogen, oxygen, and nitrogen.
  • Play critical roles in controlling chemical reactions, regulating cell processes, and transporting materials (e.g., oxygen and carbon dioxide).
  • Can function as enzymes and antibodies to help fight infections.

Nucleic Acids (CHONP)

  • Made of carbon, hydrogen, oxygen, nitrogen, and phosphorus.
  • Include DNA and RNA, essential for carrying genetic information.
  • Control cellular activities and heredity.

Elements in Biological Molecules

  • Proteins consist of CHON (carbon, hydrogen, oxygen, nitrogen).
  • Carbohydrates consist of CHO (carbon, hydrogen, oxygen).
  • Lipids consist of CHO (carbon, hydrogen, oxygen).
  • Nucleotides are composed of CHONP (carbon, hydrogen, oxygen, nitrogen, phosphorus).

Functions of Macromolecules

  • Nucleic acids carry genetic information and oversee cellular functions.
  • Proteins manage reactions, transport substances, and aid in immune responses.
  • Carbohydrates primarily serve as an energy source and provide structural support.
  • Lipids participate in energy storage, organ protection, and cellular structure.

Atomic Structure Basics

  • Atomic number equals the number of protons, which is also the number of electrons in a neutral atom.
  • Atomic mass number is the sum of protons and neutrons.
  • Protons determine an atom’s atomic mass.
  • Electrons equal the number of protons.
  • Neutrons can be calculated as atomic mass minus the number of protons.
  • Atomic number is typically smaller than atomic mass; atomic mass is the larger number in elemental notation.

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Description

Explore key concepts related to macromolecules including carbohydrates, lipids, and proteins. This quiz will test your understanding of their structures, functions, and compositions. Perfect for biology students looking to reinforce their knowledge.

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