Question 1.
Why do some media reports about scientific discoveries end up being exaggerations?
ANSWER
~Media reports can come from journal articles that are not peer reviewed. ~Findings can be misinterpreted. ~Some studies are not done using the proper
controls or scientific method, so they are unreliable.
Question 2.
Two groups of human's subjects received a pill and were told that the pill could contain a drug that makes them drowsy. Only one
group actually re-ceived a pill with the drug; the other group secretly received a sugar pill. Both groups experienced equal amounts of
measurable drowsiness 30 mins after taking the pills. A reasonable conclusion is that
ANSWER
Placebo effect
Question 3.
The maximum number of atoms to which a single carbon atom can bind is
ANSWER
4
Question 4.
All living organisms display 5 functional traits. One of those traits called, __________ is the maintenance of a stable internal
environments even when the external environment changes
ANSWER
homeostasis ex: body temperature, pH of blood
Question 5.
In a single water molecule, two hydrogen atoms are bonded to oxygen by _______ bonds; neighboring water molecules are held
together by ______ bonds
ANSWER
polar covalent; hydrogen
Question 6.
If coffee has a pH of 5 and orange juice a pH of 3, which is more acidic and by how much?
ANSWER
Orange juice is 100 times more acidic than coffee
, Question 7.
According to cell theory, all cells come from
ANSWER
pre-existing cells
Question 8.
When observing a cell through the microscope, the presence of ______ would indicate that you are observing a eukaryote and not a
prokaryote
ANSWER
chloroplast
Question 9.
Molecules of glucose move down their concentration gradient, into a cell, through a membrane transport protein during a process
called
ANSWER
facilitated diffusion
Question 10.
During digestion, proteins are broken down into _______, while complex carbohydrates are broken down into ____
ANSWER
Amino acids; simple sugars
Question 11.
Which is a false statement about enzymes?
ANSWER
They raise the activation energy required for a reaction
Question 12.
The O2 released during photosynthesis comes from the splitting of
ANSWER
water
Question 13.
Listed in correct order, the stages of aerobic cellular respiration are
ANSWER
Glycolysis-> citric acid cycle-> electron-transport chain