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Biology - Final Review

Biology - Final Review
(50 Questions)

Scientific Method

Observations: New observations are made and past data are studied
Hypothesis: A testable statement is formulated
Experiment/Observations: The hypothesis is tested by experiment of further observations
Conclusion: The results are analyzed.
• If the hypothesis is support. Continue work (multiple experiences)
• If the hypothesis is rejected. Start again (new hypothesis)

Car Scenario:
Observations: Vehicle won’t start
Hypothesis: Battery is dead
Experiment: Go by a new battery and replace
Conclusion: If the car start, your hypothesis is correct, if doesn’t need a new hypothesis

What scientific method is for or its purpose?
It is a process which you gather information, evaluated and learn about something. You observe something and try to figure out how it works.

Cell Theory
All living organism is made of cell. It can be unicellular or multi-cellular.

Basic Biological Molecules:
Four basic biological groups that make up all life are:
• Carbohydrates
• Proteins
• Lipids
• Nucleic Acids

What are the 6 main atoms that make up the biological molecules?/ Macronutrients
• Carbon
• Oxygen
• Hydrogen
• Nitrogen
• Phosphate
• Sulfur

If an organism is considered organic, which atom is primary made of?
• Carbon (is the main one)
• Hydrogen

The three types of bonds
• Hydrogen Bond
• Covalent Bonds
• Ionic Bond

Property of Water
What hold the atoms together?
Covalent Bond (Hydrogen and oxygen) Strong bond

What hold molecules of water together?
Hydrogen bond – Weak bond

Dehydration Systems

If you take a polysaccharide (polymers) and break down into monosaccharide (monomers), this is the process of?
Hydrolysis

If you take amino acids (monomers) and you assemble together form a (polymers) protein that is?
Dehydration synthesis

Polymers Examples
Polysaccharide (carbohydrates) Chitin,...