Table of contents

1. Overview of Cell Biology2h 49m
2. Chemical Components of Cells1h 14m
3. Energy1h 33m
4. DNA, Chromosomes, and Genomes2h 31m
5. DNA to RNA to Protein2h 31m
6. Proteins1h 36m
7. Gene Expression1h 42m
8. Membrane Structure1h 4m
- The Lipid Bilayer
  38m
- Membrane Proteins
  25m
9. Transport Across Membranes1h 52m
10. Anerobic Respiration1h 5m
11. Aerobic Respiration1h 11m
12. Photosynthesis52m
13. Intracellular Protein Transport2h 18m
14. Cell Signaling1h 28m
15. Cytoskeleton and Cell Movement1h 39m
16. Cell Division3h 5m
17. Meiosis and Sexual Reproduction50m
18. Cell Junctions and Tissues48m
19. Stem Cells13m
- Stem Cells
  13m
20. Cancer44m
21. The Immune System1h 6m
22. Techniques in Cell Biology1h 41m

2. Chemical Components of Cells

Properties of Macromolecules

Cell Biology

2. Chemical Components of Cells

Properties of Macromolecules

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Multiple Choice

Which of the following is not a property of macromolecules?

They are formed through linear polymerization of individual subunits

They have the ability to form stereoisomers

Noncovalent bonds allow for the formation of complex functions

Covalent interactions allow for stable conformations of macromolecules

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Verified step by step guidance

Understand the properties of macromolecules: Macromolecules are large molecules composed of smaller subunits. They are typically formed through the process of polymerization, where individual subunits are linked together in a linear fashion.

Explore stereoisomerism in macromolecules: Stereoisomers are molecules that have the same molecular formula but differ in the spatial arrangement of atoms. Macromolecules can exhibit stereoisomerism due to the presence of chiral centers, which can lead to different three-dimensional structures.

Examine the role of noncovalent bonds: Noncovalent interactions, such as hydrogen bonds, ionic bonds, and van der Waals forces, play a crucial role in the formation and stabilization of complex macromolecular structures and functions. These interactions are essential for the dynamic nature of macromolecules.

Consider covalent interactions: Covalent bonds involve the sharing of electron pairs between atoms, leading to stable molecular structures. While covalent bonds are important for the primary structure of macromolecules, the statement suggests that covalent interactions are not responsible for the stable conformations of macromolecules, which is incorrect.

Identify the incorrect statement: The statement 'Covalent interactions allow for stable conformations of macromolecules' is incorrect because stable conformations are primarily influenced by noncovalent interactions, which allow macromolecules to adopt specific shapes and functions.