Concept explainers
a.
To determine:
The differences in the diffusion rates of chemicals A and B.
Introduction:
The membrane that is present below the cell wall and glycocalyx is a cytoplasmic membrane. It is also known as plasma membrane or cell membrane. The structure of the cytoplasmic membrane is referred to the phospholipid bilayer and the membrane of bacteria is composed of integral proteins. Peripheral proteins are loosely attached to the membrane on one or another side which acts as enzymes, receptors, recognition proteins, and carriers.
Cell membrane controls the movement of substances inside and outside of the cell with the main function of protecting the cell for the surroundings. It also provides shape to the cell and involves in different cellular processes such as cell signaling, cell adhesion, and ion conductivity.
b.
To explain:
The reason that diffusion rate of chemical A taper off.
Introduction:
The membrane that is present below the cell wall and glycocalyx is a cytoplasmic membrane. It is also known as plasma membrane or cell membrane. The structure of the cytoplasmic membrane is referred to the phospholipid bilayer and the membrane of bacteria is composed of integral proteins. Peripheral proteins are loosely attached to the membrane on one or another side which acts as enzymes, receptors, recognition proteins, and carriers.
Cell membrane controls the movement of substances inside and outside of the cell with the main function of protecting the cell for the surroundings. It also provides shape to the cell and involves in different cellular processes such as cell signaling, cell adhesion, and ion conductivity.
c.
To determine:
The way in which the cell increase the diffusion rate of chemical A.
Introduction:
The membrane that is present below the cell wall and glycocalyx is a cytoplasmic membrane. It is also known as plasma membrane or cell membrane. The structure of the cytoplasmic membrane is referred to the phospholipid bilayer and the membrane of bacteria is composed of integral proteins. Peripheral proteins are loosely attached to the membrane on one or another side which acts as enzymes, receptors, recognition proteins, and carriers.
Cell membrane controls the movement of substances inside and outside of the cell with the main function of protecting the cell for the surroundings. It also provides shape to the cell and involves in different cellular processes such as cell signaling, cell adhesion, and ion conductivity.
d.
To determine:
The way in which the cell increase the diffusion rate of chemical B.
Introduction:
The membrane that is present below the cell wall and glycocalyx is a cytoplasmic membrane. It is also known as plasma membrane or cell membrane. The structure of the cytoplasmic membrane is referred to the phospholipid bilayer and the membrane of bacteria is composed of integral proteins. Peripheral proteins are loosely attached to the membrane on one or another side which acts as enzymes, receptors, recognition proteins, and carriers.
Cell membrane controls the movement of substances inside and outside of the cell with the main function of protecting the cell for the surroundings. It also provides shape to the cell and involves in different cellular processes such as cell signaling, cell adhesion, and ion conductivity.

Want to see the full answer?
Check out a sample textbook solution
Chapter 3 Solutions
Modified Mastering Microbiology wit
- In one paragraph show how atoms and they're structure are related to the structure of dna and proteins. Talk about what atoms are. what they're made of, why chemical bonding is important to DNA?arrow_forwardWhat are the structure and properties of atoms and chemical bonds (especially how they relate to DNA and proteins).arrow_forwardThe Sentinel Cell: Nature’s Answer to Cancer?arrow_forward
- Molecular Biology Question You are working to characterize a novel protein in mice. Analysis shows that high levels of the primary transcript that codes for this protein are found in tissue from the brain, muscle, liver, and pancreas. However, an antibody that recognizes the C-terminal portion of the protein indicates that the protein is present in brain, muscle, and liver, but not in the pancreas. What is the most likely explanation for this result?arrow_forwardMolecular Biology Explain/discuss how “slow stop” and “quick/fast stop” mutants wereused to identify different protein involved in DNA replication in E. coli.arrow_forwardMolecular Biology Question A gene that codes for a protein was removed from a eukaryotic cell and inserted into a prokaryotic cell. Although the gene was successfully transcribed and translated, it produced a different protein than it produced in the eukaryotic cell. What is the most likely explanation?arrow_forward
- Molecular Biology LIST three characteristics of origins of replicationarrow_forwardMolecular Biology Question Please help. Thank you For E coli DNA polymerase III, give the structure and function of the b-clamp sub-complex. Describe how the structure of this sub-complex is important for it’s function.arrow_forwardMolecular Biology LIST three characteristics of DNA Polymerasesarrow_forward
- Concepts of BiologyBiologyISBN:9781938168116Author:Samantha Fowler, Rebecca Roush, James WisePublisher:OpenStax College
- Human Physiology: From Cells to Systems (MindTap ...BiologyISBN:9781285866932Author:Lauralee SherwoodPublisher:Cengage LearningBiology Today and Tomorrow without Physiology (Mi...BiologyISBN:9781305117396Author:Cecie Starr, Christine Evers, Lisa StarrPublisher:Cengage Learning


