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

14. Cell Signaling

Overview of Cell Surface Receptors

Cell Biology

14. Cell Signaling

Overview of Cell Surface Receptors

Previous problemNext problem

Struggling with Cell Biology?

Join thousands of students who trust us to help them ace their exams!Watch the first video

Multiple Choice

Which of the following statements correctly characterizes the cytosol?

It is the structure that forms the cell's outer boundary.

It contains the genetic material of the cell.

It is the aqueous component of the cytoplasm where many metabolic reactions occur.

It is a membrane-bound organelle responsible for protein synthesis.

Previous problemNext problem

Verified step by step guidance

Step 1: Understand the term 'cytosol'. The cytosol is the aqueous, gel-like component of the cytoplasm, excluding organelles and other structures. It serves as the medium where many metabolic reactions and cellular processes occur.

Step 2: Analyze the first statement: 'It is the structure that forms the cell's outer boundary.' This describes the plasma membrane, not the cytosol. Therefore, this statement is incorrect.

Step 3: Analyze the second statement: 'It contains the genetic material of the cell.' The genetic material is located in the nucleus (in eukaryotic cells) or nucleoid (in prokaryotic cells), not in the cytosol. Thus, this statement is also incorrect.

Step 4: Analyze the third statement: 'It is the aqueous component of the cytoplasm where many metabolic reactions occur.' This is an accurate description of the cytosol, as it is the fluid portion of the cytoplasm where enzymes and substrates interact for metabolic processes.

Step 5: Analyze the fourth statement: 'It is a membrane-bound organelle responsible for protein synthesis.' This describes the rough endoplasmic reticulum or ribosomes, not the cytosol. Therefore, this statement is incorrect.