What are the basic reasons for experiments and how should they be set up?
Tests that support a hypothesis must be repeatable and the hypothesis must be falsifiable. Observetions, ?, hypothesis, prediction, experiment.
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What are the basic reasons for experiments and how should they be set up?
Tests that support a hypothesis must be repeatable and the hypothesis must be falsifiable. Observetions, ?, hypothesis, prediction, experiment.
What are the characteristics of life?
Order, regulation, growth and development, energy processing, reproduction, response to the environment, evolution.
What is the difference between covalent and ionic bonds?
Covalent: Electrons are shared. Strongest bond.
Ionic: Electrons are gained or lost.
Hydrogen: Between or within molecules. (weak) found in water, DNA, proteins.
What subatomic particle is involved in these covalent and ionic bonds?
Protons (determines the element), neutrons (determine isotopes), electrons (Determine chemical behavior)
What are the four groups of organic compounds? examples of each group.
Carbohydrates (starch, glycogen, cellulose), lipids (fats and oils, steroids, phospholipids) , proteins (enzymes, muscle), nucleic acids (DNA, RNA).
What are the building blocks for proteins?
Amino acids
What are the building blocks for nucleic acids?
Nucleotides
What makes the water molecule so important for life on the planet?
Water molecules stick together: cohesion and surface tension. Water has a strong resistance to change in temperature. Density differences between liquids and ice. Water is a common solvent for life.
What is the function of the plasma membrane?
Permeable. Made of lipids and protein. separates the internal environment from the external. Allows for communication between cells and their environment.
Function of the ribosome?
Site of protein synthesis.
Mitochondria
Site of cellular respiration. Produces ATP.
Chloroplast
Site of photosynthesis. Light energy from the sun is turned into chemical energy here then is moved to the mitochondria to make ATP.
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