Module 1 (part 1) Flashcards
7 Properties of life
- Order and Organization
Physical rules governing Biology
- Rules of chemical bonds
- Rules of thermodynamics
4 main chemical elements used in life
- Oxygen
- Hydrogen
- Carbon
- Nitrogen
Water forms a lattice…
- Is a dense liquid, supportive
- Is very stable as a liquid
- Is cohesive and adhesive as a liquid.
Making macromolecules…
Dehydration
Breaking Macromolecules…
Hydrolysis
4 major organic macromolecules
Nucleic Acid (DNA and RNA)
Lipid
Carbohydrates
Proteins
What macromolecules form the central dogma
Proteins and Nucleic acid
Functions of DNA
Information storage (encodes)
Functions of RNA
- Formation of proteins
- The messenger (transports information’s)
Functions of Polypeptide/Proteins
- Provide structural support
- Enzyme that catalysis
Process that ensures DNA will be present in new cells.
Replication
Process that recopies DNA into RNA in all cells.
Transcription
Process that uses RNA to help create a polypeptide/protein.
Translation
What is energy?
Is the movement of electrons.
(The ability to do work)
Two forms of energy
- Kinetic Energy
- Potential Energy
Why do life need energy?
To do work and maintain order
Change in environment requires the cell or organism to ________.
Adapt
Why is adaptation not evolution?
Evolution occurs in a population level not in individual level
Physiology
Study of how the human body works and our bodies’ automatic response.
ex. shivering (response to cold)
Behavior
Change in activity of an organism in response to stimulus.
ex. choosing to wear a jacket (response to cold).
Homeostasis
“Is a self-regulating process by which biological systems maintain stability while adjusting to changing external conditions.
What are some homeostatic variables you control?
Anything that goes in and out of our body.
ex. temperature, gas exchange, breathing, etc.
Two main ways organism grow?
- Cell division (increase in cell size and number)
- Mitosis
How is development different form growth?
As the stages the cells go through they multiply and differentiate.
ex. panda
Two main method of reproduction
- sexual
- asexual
what cellular processes are involved during reproduction?
Meiosis in humans and mitosis in plants.
Does evolution create variation or work on existing variation?
It works on the existing variation.
Where does the variation come from?
Mutation (change in DNA sequences)
Why is it important to have variation?
To survive and enhance its ability to survive.
