09 Jun strayer sci115 quiz 2 and quiz 3
Question
quiz 2
• Question 1
2.5 out of 2.5 points
Oxygen has an atomic number of 8. This means that an oxygen atom has
.
• Question 2
0 out of 2.5 points
A hydrogen bond is
• Question 3
2.5 out of 2.5 points
Electrons are shared in bonds called
• Question 4
2.5 out of 2.5 points
A water molecule is polar because
• Question 5
2.5 out of 2.5 points
Which of the following is true of water molecules when water becomes ice?
• Question 6
2.5 out of 2.5 points
What accounts for carbon’s importance to life?
• Question 7
2.5 out of 2.5 points
What limits the size of a cell?
• Question 8
2.5 out of 2.5 points
Which of the following lipids makes up most of a plasma membrane?
• Question 9
2.5 out of 2.5 points
Which of the following cell features is absent in a bacterial cell?
• Question 10
2.5 out of 2.5 points
If you could stick a microscopic pin into the center of a bacterium, what would the order of the structures you would encounter from the outside in?
• Question 11
2.5 out of 2.5 points
What is the function of ribosomes?
• Question 12
2.5 out of 2.5 points
The rough endoplasmic reticulum is so called because ____ stud the surface of that organelle.
Week 3
• Question 1
2.5 out of 2.5 points
In order to survive, living things must
• Question 2
2.5 out of 2.5 points
What happens to a molecule when it is phosphorylated?
• Question 3
2.5 out of 2.5 points
The minimum amount of energy needed to get a chemical reaction started is called the ___ energy.
• Question 4
2.5 out of 2.5 points
Osmosis involves
• Question 5
2.5 out of 2.5 points
When there is a “concentration gradient” this means that
• Question 6
2.5 out of 2.5 points
Which of the following statements about blood cells in solutions is CORRECT?
• Question 7
2.5 out of 2.5 points
Movement of substances that requires the expenditure of ATP molecules is
• Question 8
2.5 out of 2.5 points
The ultimate energy source for food production for most life on earth is
• Question 9
2.5 out of 2.5 points
Most of the colors we see around us result from
• Question 10
2.5 out of 2.5 points
In which of the following cellular organelles does photosynthesis take place?
• Question 11
2.5 out of 2.5 points
Which of the following generates the most energy in the form of ATP?
aerobic respiration
• Question 12
2.5 out of 2.5 points
In aerobic respiration, the final electron acceptor at the end of an electron transport chain is ________________.
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