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Unit 2 Biology Test

Satsuma High ANDERSON

What is the atomic number of an element? Subscription the periodic table: # of protons only in that element
List four details about Carbon that make it such an important element. it can make single, double, or triple bonds helps make organic molecules associated w/all living organisms allows cells to build on infinite # of different molecules
Explain the different types of chemical bonds and give an example of each. covalent, 2 hydrogens ionic, NaCl, hydrogen, NH3
What is dehydration synthesis? the removal of water
What is hydrolysis? when macro-molecules are broken apart into individual monomers
Explain how energy is released from ATP molecules. ATP converting to ADP gives off energy
What is an enzyme? a biological catalyst
What types of things affect enzyme reactions? And how? temp, ph, salt in extreme environments enzymes denature
How does increasing the concentration of an enzyme affect reactions? and How? move enzymes faster it goes the lower the slower goes up for a little while then evens out
How does increasing the concentration of a substrate affect a reaction? the reaction rate speeds up
Explain the properties of water and the importance of these in living things? polar, hydrophilic,one oxygen 2 hydrogen; hydrogen is slightly positive and oxygen is slightly negative
Explain the difference between hypotonic solutions, hypertonic solutions and isotonic solutions. hypo- almost none hyper-too much isotonic- even
Describe the four macromolecules and their functions. carbs-energy lipids-store energy protein- workhorse of the cell nucleic acid-source of genetic info