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CellBioPt12014-15

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1.
1 point
Which organelle would you expect to find in plant cells but not animal cells?
2.
1 point
Which of the following structures serves as the cell’s boundary from its environment?
3.
1 point
Isotopes are atoms of the same element with the same number of protons and a different number of
4.
1 point
What advance in technology made the discovery of cells possible?
5.
1 point
Despite differences in size and shape, at some point all cells have DNA and a
6.
1 point
A group of similar cells that perform a particular function is called
7.
1 point
The primary function of the cell wall is to
8.
1 point
Which means of particle transport requires input of energy from the cell?
9.
1 point
Which cell structures are sometimes found attached to the endoplasmic reticulum
10.
1 point
In eukaryotic cells, chromosomes carrying genetic information are found in the
11.
1 point
Carbon-12 is the most common isotope of carbon. It has 6 protons, 6 neutrons, and 6 electrons. Of its 6 electrons, 4 are valence electrons. How many covalent bonds can a carbon atom form?
12.
1 point
Which of the following statements is true about catalysts?
13.
1 point
When hydrogen and oxygen combine to form water, water is
14.
1 point
Looking at a cell under a microscope, you note that it is a prokaryote. How do you know?
15.
1 point
When salt is dissolved in water, water is the
16.
1 point
The elements or compounds that enter into a chemical reaction are called
17.
1 point
A covalent bond is formed as the result of
18.
1 point
The diffusion of water across a selectively permeable membrane is called
19.
1 point
Which of the following is a function of the cytoskeleton?
20.
1 point
Which of the following makes up a molecule of water?
21.
1 point
Why is carbon so special compared to other elements?
22.
1 point
Which of the following is a function of the nucleus?
23.
1 point
Which organelle breaks down organelles that are no longer useful?
24.
1 point
Which subatomic particles are located in the space surrounding the nucleus of an atom?
25.
1 point
Which term describes the relatively constant internal physical conditions of an organism?
26.
1 point
Which of the following statements about enzymes is NOT true?
27.
1 point
In chemical reactions, atoms are
28.
1 point
Water molecules are polar, with the
29.
1 point
A map of eastern North America, showing the pH of rainfall in the various states, indicates that the pH of rain in New York State varies from 4.22 to 4.40. According to these figures, the most acidic rainfall in New York State has a pH of
30.
1 point
Which of the following is NOT a principle of the cell theory?
31.
1 point
Identify the reactant(s) in the chemical reaction, CO2 + H2O --> H2CO3.
32.
1 point
In many cells, the structure that controls the cell’s activities is the
33.
1 point
A substance that moves by passive transport tends to move
34.
1 point
Which organelles are involved in energy conversion?
35.
1 point
An animal cell that is surrounded by fresh water will burst because the osmotic pressure causes
36.
1 point
Which structure makes proteins using coded instructions that come from the nucleus?
37.
1 point
The energy needed to get a reaction started is the
38.
1 point
The three particles that make up atoms are
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