
To analyze:
Why the development of the membrane system was an important phase in the origin of life.
Introduction:
The membrane system refers to the membrane bound organelles seen in all eukaryotic cells.

Answer to Problem 1SA
Correct answer:
Option (a): amino acids.
Explanation of Solution
The formation of the first membrane around chemical components lead to the formation of the first cells. This started life on earth. When membrane systems developed around cells, it allowed more complexity to come into life processes.
The different chemical components within cells began to be enclosed within lipid membranes. This created specialized structures called organelles.
The development of the cell membrane allowed the cell to regulate the molecules that could interact with the cell components, allowing access to required chemicals, while inhibiting others that were injurious to the cell and its components.
Specialized functions evolved in the cells, and the cells in turn grew specialized for various functions. This may have been what led to the evolution of multicellular organisms. This development is considered an important phase in the origin of life.
The separation of different chemical components within a cell by membranes lead to the evolution of organelles. This is an important phase in evolution because it led to the increase in complexity of life processes.
Want to see more full solutions like this?
Chapter 12 Solutions
WHAT IS LIFE?:GDE....W/PHYS.(LL)-W/CODE
- 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 CollegeHuman Biology (MindTap Course List)BiologyISBN:9781305112100Author:Cecie Starr, Beverly McMillanPublisher:Cengage Learning
- Biology Today and Tomorrow without Physiology (Mi...BiologyISBN:9781305117396Author:Cecie Starr, Christine Evers, Lisa StarrPublisher:Cengage LearningBiology (MindTap Course List)BiologyISBN:9781337392938Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. BergPublisher:Cengage Learning



