Final Review Flashcards
Smallest unit of life
CELL
A group of similar cells that perform a particular function.
TISSUE
Several tissues join together to form an…
ORGAN
Organs work together to form an…
ORGANSISM
Organisms of the same species in a particular area
POPULATION
Interacting populations in a particular area
COMMUNITY
A community plus the physical environment
ECOSYSTEM
Regions of the earths crust waters and atmosphere inhabited by living organisms
BIOSPHERE
Smallest unit of an element; composed of electrons, protons, and neutrons
ATOM
Union of two or more atoms of the same or different elements
MOLECULE
The structural and functional unit of all living organisms
CELL
A group of cells with a common structure and function
TISSUE
Composed of tissues functioning together for a specific task
ORGAN
Composed of several organs working together
ORGAN SYSTEM
The capacity to do work
ENERGY
Unit of information within an individual’s DNA
GENES
The process by which organism makes more of itself
REPRODUCTION
The requirement that organisms maintain a relatively constant internal environment.
HOMEOSTASIS
Increase in size or number of cells
GROWTH
Changes that take place from conception to death
DEVELOPMENT
The differential reproductive success of adapted individuals
NATURAL SELECTION
The change in frequency of traits in populations and species
TAXONOMY
Is the discipline of identifying and classifying organisms
SYSTEMATICS
Are the largest classification category
DOMAINS
Live in extreme environments
ARCHEA
Cells with nuclei
DOMAIN EUKARYA
Multicellular,motile, ingestion of food
Kingdom ANAMALIA
Dorsal supporting rod and nerve cord
PHYLUM CHORDATA
Hair, mammary glands
CLASS MAMMALIA
Adapted to climb trees
ORDER PRIMATES
Adapted to walk erect
FAMILY HOMINIDAE
Large brain, tool use
GENUS HOMO
Body characteristics similar to modern humans
SPECIES HOMO SAPIEN
Occurs when one uses creative thinking to combine isolated facts into a cohesive whole
INDUCTIVE REASONING
Involves if then logic
DEDUCTIVE REASONING
Factor of the experiment being tested
Experimental Variable (INDEPENDENT VARIABLE)
Result or change that occurs due to the experimental variable.
Response Variable (DEPENDENT VARIABLE)
Is the application of the knowledge for a practical purpose
TECHNOLOGY
Atoms of the same element that differed in the number of neutrons.
ISOTOPES
Shares electrons
Covalent
Gives away electrons
IONIC
Properties of water
- high heat capacity
- high heat of vaporization
- a universal solvent
- cohesive and adhesive
- high surface tension
Resisted the change of the ph to neutralize
BUFFER
Always include carbon and hydrogen
ORGANIC MOLECULES
Used to fe energy
CARBOHYDRATES
Carbohydrate monomer
Monosaccharide
Polymer of carbohydrates
POLYSACCHARIDE
Monomer of lipids
FATTY ACID
Polymer of Lipids
TRIGLYCEROL
Monomer of protein
AMINO ACID
Polymer of Proteins
POLYPEPTIDES
Monomer of nucleic ACID
Nucleotide
Polymer of nucleic acids
Polynucleotide
Phases of cellular respiration
- glycolysis
- preparatory reaction
- citric acid cycle
- ETC
Where does glycolysis occur
In the cytoplasm
What is glycolysis
The breakdown of glucose into 2 molecules of pyruvate
What happens in the Calvin cycle
Series of oxidative reactions occur that produce one ATP and carbon dioxide per turn
- Acetyl CoA is converted to citric acid and enters cycle
- cycle turns twice because 2 acetyl CoA’s are produced per glucose
What is glycolysis
The breakdown of glucose into 2 molecules of pyruvate
-does not require oxygen y
ETC
Makes 32-34 ATP per glucose molecule
Where does the krebs cycle occur?
Matrix
Where does ETC occur
The cristae
Metabolism
The sum of all the chemical reactions that occur in a cell
Exergonic
Delta G is neg….products have less free energy than reactants
Endergonic
Delta G is pos…products have more free energy than reactants
Metabolic pathways
Series of linked reactions
Potential energy
stored energy
Kinetic energy
motion energy
Chemical energy
stored in chemical compounds and is released from a chemical rxn.
mechanical energy
the sum of kinetic and potential energy in an object that does work.
Law of thermodynamics
Energy cannot be created or destroyed but can be changed from one form to another
-Energy cannot be changed to another without a loss of usable energy
ATP
..
Free energy
The amount of energy available
How is free energy calculated
I subtract the energy of the reactants from that of the products
Exergonic
Energy is released and Delta G negative
-Products have less free energy reactance
Endergonic
Requires input of energy and Delta G is positive
-Products have more free energy than reactants
Metabolic pathway
Every step of the metabolic pathway has a different enzyme that is unique to the previous substrate
Oxidation
Loss of electrons
Reduction
Gain of electrons
Metabolism
Is the sum of all chemical reactions that occur in a cell
Cellular respiration formula
Glucose + oxygen= Co2 + water + ATP
Reactants of CR
Oxygen and glucose
Products of CR
Water, carbon dioxide and Energy
Where does glycolysis occur
In the cytoplasm
What is glycolysis
The breakdown of glucose into 2 molecules of pyruvate
What happens in the Krebs cycle
Series of oxidative reactions occur that produce one ATP and carbon dioxide per turn
- Acetyl CoA is converted to citric acid and enters cycle
- cycle turns twice because 2 acetyl CoA’s are produced per glucose
how many ATP’s does the ETC make?
Makes 32-34 ATP per glucose molecule
Where does the krebs cycle occur
Matrix