Lecture notes of chapter 1 of the Campbell biology Textbook that focuses on the study of life and identifying the unifying themes.,also discusses the themes regarding the properties of biological organization. There are also the discussion of cells and the environment.
An Essential Study Resourc...
CONCEPT 1.1: The study of life reveals unifying themes
• Biology is the scientific study of life
• We recognize life by what living things do
• Biology is a subject of enormous scope
• There are five unifying themes in Biology
– Organization
– Information
– Energy and Matter
– Interactions
– Evolution
Theme: New Properties Emerge at Successive Levels of Biological Organization
• Life can be studied at different levels, from molecules to the entire living planet
• This enormous range can be divided into different levels of biological organization
• Reductionism is an approach that reduces complex systems to simple components that are
manageable to study
, Emergent Properties
• Emergent properties result from the arrangement and interaction of parts as complexity
increases
• Emergent properties characterize nonbiological entities as well
– For example, a functioning bicycle emerges only when all of the necessary parts
connect in the correct way
Emergent Properties
• Emergent properties result from the arrangement and interaction of parts as complexity
increases
• Emergent properties characterize nonbiological entities as well
– For example, a functioning bicycle emerges only when all of the necessary parts
connect in the correct way
Structure and Function
• At each level of the biological hierarchy we find a correlation between structure and
function
• Analyzing a biological structure gives us clues about what it does and how it works
• Conversely, knowing the function of something provides insight into its structure and
organization
The Cell: An Organism’s Basic Unit of Structure and Function
• The cell is the smallest unit of organization that can perform all activities required for life
• The cell theory states that all living organisms are made from cells
• Every cell is enclosed by a membrane that regulates passage of materials between the cell
and its environment
• The cells of bacteria and archaea are prokaryotic, while all other forms of life are
composed of eukaryotic cells
• A eukaryotic cell has membrane-enclosed organelles, the largest of which is usually the
nucleus
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller anyiamgeorge19. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $11.99. You're not tied to anything after your purchase.
