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? ACHIEVE 1 TERM ACCESS CODE
- Why is RNA likely to have been pivotal in life’s beginnings?arrow_forwardWhat are the eons in which the following events occur? Origin of Earth. Oxygen appeared in the atmosphere Prokaryotic cells Single cell eukaryotes Multicellular eukaryotes Animals Plantsarrow_forwardWhich molecule is believed to have preceded the other two during the evolution of life? RNA Proteins DNAarrow_forward
- Here is the question: What was the likely source of the raw material incorporated into the first life forms? I believe it is carbon, but I don't know why it is carbon. What I mean is, why is carbon considered the thing that makes something alive? Why are eukaryotes and prokaryotes simply considered alive just because they have carbon. Would that mean that carbon is alive because carbon has carbon? I would appreciate an anwser because I'm really trying to understand everything I run across. I love educating myself and I'm on a quest for knowledge. Thanks guys!arrow_forwardSimple systems (of this type) of RNA , enzymes, and coenzymes have been created in the laboratory. Which probable stage of physical and chemical evolution of life is that.arrow_forwardAccording to the endosymbiotic theory, which of the following is NOT true about the evolution of life on earth? Eukaryotes and prokaryotes appeared at about the same time and evolved independently from each other. O None of the other four answers (all are true statements) Eukaryotes evolved from symbiotic prokaryotes living inside other prokaryotes Mitochondria and chloroplasts are in some ways similar to prokaryotes The first life on earth was simple organisms, similar to today's prokaryotesarrow_forward
- What are the Stages of the origin of life. ?arrow_forwardWhat is the most logical theory on the topic of the Origin of Life?arrow_forward1) Select the concept below that best demonstrates compartmentalization of function in living things. Group of answer choices horizontal gene transfer flatness of flatworms organelles in eukaryotic cells circular chromosome of prokaryotic cells the Miller-Urey experiment gastrovascular cavity the RNA World hypothesisarrow_forward
Concepts of BiologyBiologyISBN:9781938168116Author:Samantha Fowler, Rebecca Roush, James WisePublisher:OpenStax College