BIO 156 UPDATED TEST PAPER QUESTIONS AND
ANSWERS SET A+
✔✔What is a BIOGEOCHEMICAL CYCLE? How do they link organisms together? -
✔✔A biogeochemical cycle is a predictable pattern in which matter is constantly being
shuffled in the atmosphere (RECYCLING)
As these cycles occur,
atoms Move in and out of organisms and link them together
✔✔What is an ELEMENT? How is one specific element different from any other
element? - ✔✔An element is a UNIQUE type of atom with a specific number of protons
AND
a UNIQUE set of physical characteristics
✔✔Carefully DRAW the PLANETARY MODEL of a CARBON atom.
BE SURE TO LABEL all the important parts and indicate if any of these parts has a +/-
charge - ✔✔Planetary model of carbon atom
(NOT the same as this picture, refer back to quiz 3)
✔✔What are the 3 I's? - ✔✔-Interact
-Interconnected
-Interdependent
✔✔DNA's 2 uses are: - ✔✔1. Recipes for proteins
2. Genetic material = transfers recipes to offspring
✔✔Characteristics of living things: - ✔✔1. All living things exhibit a unique, complex &
hierarchical organization
2. All living things must acquire specific materials (atoms, molecules) and energy to
maintain organization
, 3. All living things must exhibit patterns of development, growth, and reproduction
4. All living things exhibit evolutionary and heredity "links" to other organisms
5. All living things respond to environment
6. All living things are linked to other life through biogeochemical cycles and patterns of
energy flow - they are part of the biosphere
✔✔What's the Big 5? - ✔✔1. Water
2. Carbohydrates
3. Lipids
4. Protein
5. Nucleotides
✔✔HOW MANY covalent bonds does Carbon/oxygen/nitrogen/hydrogen usually form? -
✔✔-Carbon: 4 covalent bonds
-Oxygen: 2 covalent bonds
-Nitrogen: 3 covalent bonds
-Hydrogen: 1 covalent bond
✔✔DRAW the STRUCTURAL FORMULA for Methyl Alcohol CH4O or CH3OH - ✔✔H
I
H - C- OH
I
H
✔✔Draw the STRUCTURAL FORMULA for H2O - ✔✔
✔✔What is an ION?
Carefully list ONE ion we have discussed in class - ✔✔-An ion is a atom that has a
positive (+) or negative (-) charge
-Na+
-Cl-
✔✔A COVALENT BOND is generally considered relatively ____________ (weak or
strong), and is created by _______ (sharing electrons or attraction of opposite charges)
- ✔✔-Strong
-Sharing electrons
ANSWERS SET A+
✔✔What is a BIOGEOCHEMICAL CYCLE? How do they link organisms together? -
✔✔A biogeochemical cycle is a predictable pattern in which matter is constantly being
shuffled in the atmosphere (RECYCLING)
As these cycles occur,
atoms Move in and out of organisms and link them together
✔✔What is an ELEMENT? How is one specific element different from any other
element? - ✔✔An element is a UNIQUE type of atom with a specific number of protons
AND
a UNIQUE set of physical characteristics
✔✔Carefully DRAW the PLANETARY MODEL of a CARBON atom.
BE SURE TO LABEL all the important parts and indicate if any of these parts has a +/-
charge - ✔✔Planetary model of carbon atom
(NOT the same as this picture, refer back to quiz 3)
✔✔What are the 3 I's? - ✔✔-Interact
-Interconnected
-Interdependent
✔✔DNA's 2 uses are: - ✔✔1. Recipes for proteins
2. Genetic material = transfers recipes to offspring
✔✔Characteristics of living things: - ✔✔1. All living things exhibit a unique, complex &
hierarchical organization
2. All living things must acquire specific materials (atoms, molecules) and energy to
maintain organization
, 3. All living things must exhibit patterns of development, growth, and reproduction
4. All living things exhibit evolutionary and heredity "links" to other organisms
5. All living things respond to environment
6. All living things are linked to other life through biogeochemical cycles and patterns of
energy flow - they are part of the biosphere
✔✔What's the Big 5? - ✔✔1. Water
2. Carbohydrates
3. Lipids
4. Protein
5. Nucleotides
✔✔HOW MANY covalent bonds does Carbon/oxygen/nitrogen/hydrogen usually form? -
✔✔-Carbon: 4 covalent bonds
-Oxygen: 2 covalent bonds
-Nitrogen: 3 covalent bonds
-Hydrogen: 1 covalent bond
✔✔DRAW the STRUCTURAL FORMULA for Methyl Alcohol CH4O or CH3OH - ✔✔H
I
H - C- OH
I
H
✔✔Draw the STRUCTURAL FORMULA for H2O - ✔✔
✔✔What is an ION?
Carefully list ONE ion we have discussed in class - ✔✔-An ion is a atom that has a
positive (+) or negative (-) charge
-Na+
-Cl-
✔✔A COVALENT BOND is generally considered relatively ____________ (weak or
strong), and is created by _______ (sharing electrons or attraction of opposite charges)
- ✔✔-Strong
-Sharing electrons
