Table of contents

1. Introduction to Biology(0)
2. Chemistry(0)
3. Water(0)
4. Biomolecules(0)
5. Cell Components(0)
6. The Membrane(0)
7. Energy and Metabolism(0)
8. Respiration(0)
9. Photosynthesis(0)
10. Cell Signaling(0)
11. Cell Division(0)
12. Meiosis(0)
13. Mendelian Genetics(0)
14. DNA Synthesis(0)
15. Gene Expression(0)
16. Regulation of Expression(0)
17. Viruses(0)
- Viruses
  (0)
18. Biotechnology(0)
19. Genomics(0)
- Genomes
  (0)
20. Development(0)
21. Evolution(0)
22. Evolution of Populations(0)
23. Speciation(0)
24. History of Life on Earth(0)
25. Phylogeny(0)
26. Prokaryotes(0)
27. Protists(0)
28. Plants(0)
29. Fungi(0)
- Fungi
  (0)
- Fungi Reproduction
  (0)
30. Overview of Animals(0)
- Overview of Animals
  (0)
31. Invertebrates(0)
32. Vertebrates(0)
33. Plant Anatomy(0)
34. Vascular Plant Transport(0)
- Water Potential
  (0)
35. Soil(0)
- Soil and Nutrients
  (0)
- Nitrogen Fixation
  (0)
36. Plant Reproduction(0)
- Flowers
  (0)
- Seeds
  (0)
37. Plant Sensation and Response(0)
38. Animal Form and Function(0)
39. Digestive System(0)
- Digestion
  (0)
- Blood Sugar Homeostasis
  (0)
40. Circulatory System(0)
41. Immune System(0)
42. Osmoregulation and Excretion(0)
- Osmoregulation and Excretion
  (0)
43. Endocrine System(0)
- Endocrine System
  (0)
44. Animal Reproduction(0)
- Animal Reproduction
  (0)
45. Nervous System(0)
- Neurons and Action Potentials
  (0)
- Central and Peripheral Nervous System
  (0)
46. Sensory Systems(0)
- Sensory System
  (0)
47. Muscle Systems(0)
- Musculoskeletal System
  (0)
48. Ecology(0)
49. Animal Behavior(0)
- Animal Behavior
  (0)
50. Population Ecology(0)
51. Community Ecology(0)
52. Ecosystems(0)
53. Conservation Biology(0)
- Conservation Biology
  (0)

4. Biomolecules

Proteins

4. Biomolecules

Proteins: Videos & Practice Problems

Video Lessons Practice Worksheet

Proteins Practice Problems

20 problems

1PRACTICE PROBLEM

Identify the incorrect statement about protein structure.

Which of the following bonds do you expect in a protein's secondary structure?

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3PRACTICE PROBLEM

Which of the following is responsible for the amino acid sequences of prolactin hormone?

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4PRACTICE PROBLEM

In an aqueous environment, where are the hydrophobic R groups located in a myoglobin molecule?

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5PRACTICE PROBLEM

In an amino acid, identify the bond formed by the side chain with the α-carbon.

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6PRACTICE PROBLEM

Label A to D in the following chart, which depicts the hierarchy of hemoglobin protein structures.

Chart showing hemoglobin protein structure hierarchy: A, B, C, D labeled.

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7PRACTICE PROBLEM

Which of the following structures are responsible for regulating the activity of a protein?

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8PRACTICE PROBLEM

Which of the following is responsible for altering the structure and function of a protein?

Which level of protein structure does the β-pleated sheet represent?

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10PRACTICE PROBLEM

Identify the proteins that assist other proteins in re-forming their shape.

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11PRACTICE PROBLEM

Which of the following statements about proteins is incorrect?

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12PRACTICE PROBLEM

Calculate the number of different sequences that can be generated by assembling 5 amino acids into peptides that are 6 residues long if a cell only uses 5 amino acids instead of 20.

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13PRACTICE PROBLEM

Which statement is true about proteins?

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14PRACTICE PROBLEM

Proteins mainly function as:

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15PRACTICE PROBLEM

Which of the following stabilizes the tertiary structure of proteins?