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Bio101 Concept Check

Reviewing the Concepts Chapters 1 thru 6

QuestionAnswer
Which of the following best describes the logic of the scientific process? If my hypothesis is correct, I can make predictions and my results will not falsify my hypothesis.
Single-celled amoebas and bacteria are grouped into different domains because? Bacteria cells lack a membrane-enclosed nucleus.
A biologist studying interactions among the protists in an ecosystem, could NOT be working at which level in life's hierarchy? The organ level.
Which of the following questions is outside the realm of science? What is the influence of the supernatural on current events?
Which of the following statements best distinguishes hypotheses from theories in science? Hypotheses usually are narrow in scope; theories have broad explanatory power.
Which of the following best demonstrates the unity among all living organisms? common genetic code.
The core idea that makes sense of all of biology is the emergence of life at the level of the cell.
Changing the __________ would change it into an atom of a different element. number of protons in the nucleus of an atom.
Your body contains the smallest amount of which of the following elements? phosphorus
A solution at pH6 contains ________ than the same amount of a solution at pH8? 100 time more H+
Most of the unique properties of water result from the fact that water molecules_____? are constantly in motion
A sulfur atom has 6 electrons in its outer shell. As a result, it forms ________ covalent bonds with other atoms. two
What does the word TRACE means when you're talking about a trace element? The element is required in very small amounts.
In chemical terms you could say that cola is a solution where water is the ______, sugar is a _______, and carbon dioxide makes the solution ________? solvent, solute, acidic
Radioactive isotopes can be used in medical studies because? their location or quantity can be determined because of their radioactivity.
What is the smallest unit of an element? Atom
A glucose molecule is to starch as _____? a nucleotide is to a nucleic acid.
What makes a fatty acid an acid? It has a carboxyl group that donates an H+ to a solution.
Where in the tertiary structure of a water-soluble protein would you most likely find an amino acid with a hydrophobic R group? on the inside, away from water
Cows can derive nutrients from cellulose because? One of their stomachs contains prokaryotes that can hydrolyze the bonds of cellulose.
A shortage of phosphorus in the soil would make it especially difficult for a plant to manufacture what? DNA
Lipids differ from other large biological molecules in that they ? are not polymers
Which of the following are polar, tending to make organic compounds hydrophilic? carbonyl, amino, hydroxyl, carboxyl
Unsaturated fats have what? Double bonds in their fatty acid chains.
Created by: dtgs2010
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