BIOS 100 TEST 1
1. Elements are pure substances that::
a. Are found only in organic compounds
b. Do not react unless a high temperature is applied
c. Contain atoms that all have the same number of protons and electrons
d. Are limited to compounds found in plants
2. The structure of an atom is important because::
a. It determines how differentatoms will react
b. It tells us the number of neutrons
c. It indicated how old an element is
d. None of the above
3. If an atom has 10 protons, it would normally be expected to also have::
a.10 neutrons
b. 20 neutrons
c. 10 electrons
d. 20 electrons
4. Sodium with atomic number 11 will bond with chlorine, atomic number 17. In the process,
sodium loses an electron to chlorine. Sodium then::
a. Becomeslarger
b. Becomes a positive ion
c. Becomes a negative ion
d. Both a and b are correct
5. Atoms which have the maximum number of electrons in their outermostshell are most
likely to::
a. React violently with other atoms
b. Gain electrons from nearby atoms
c. Lose electrons to a larger atom
, d. Not react under normal circumstances
6. Which one of the following shows the correct levels of organization?:
a.Atom, molecule, compound
b. Atom, electron, molecule, compound
c. Molecule, atom, compound
d. Atom, electron, compound, molecule
7. All the reactions that occur in an organism are collectively called:: a.
Metabolism
b. Anabolism
c. Photosynthesis
d. Dehydration synthesis
8. The breakdown of glucose in cells occurs in a process known as:: a.
Photosynthesis
b. Anabolism
c. Assimilation
d. Cell respiration
9. Compounds differ from mixtures in that:: a. Mixtures are formed by atomswith covalent
bonds
b. Compounds are created from atoms joined together by chemical bonds
c. Compounds can be easily broken apart by ordinary means
d. Mixtures are composed of atoms joined in specific ratios
10. All but which of the following are compounds?: a. Carbohydrates
b. A bowl of soup
c. Lipids
d. Water
11. Lipids and proteins are examples of:: a. Mixtures b. Solutions c. Compounds
d. Carbohydrates
1. Elements are pure substances that::
a. Are found only in organic compounds
b. Do not react unless a high temperature is applied
c. Contain atoms that all have the same number of protons and electrons
d. Are limited to compounds found in plants
2. The structure of an atom is important because::
a. It determines how differentatoms will react
b. It tells us the number of neutrons
c. It indicated how old an element is
d. None of the above
3. If an atom has 10 protons, it would normally be expected to also have::
a.10 neutrons
b. 20 neutrons
c. 10 electrons
d. 20 electrons
4. Sodium with atomic number 11 will bond with chlorine, atomic number 17. In the process,
sodium loses an electron to chlorine. Sodium then::
a. Becomeslarger
b. Becomes a positive ion
c. Becomes a negative ion
d. Both a and b are correct
5. Atoms which have the maximum number of electrons in their outermostshell are most
likely to::
a. React violently with other atoms
b. Gain electrons from nearby atoms
c. Lose electrons to a larger atom
, d. Not react under normal circumstances
6. Which one of the following shows the correct levels of organization?:
a.Atom, molecule, compound
b. Atom, electron, molecule, compound
c. Molecule, atom, compound
d. Atom, electron, compound, molecule
7. All the reactions that occur in an organism are collectively called:: a.
Metabolism
b. Anabolism
c. Photosynthesis
d. Dehydration synthesis
8. The breakdown of glucose in cells occurs in a process known as:: a.
Photosynthesis
b. Anabolism
c. Assimilation
d. Cell respiration
9. Compounds differ from mixtures in that:: a. Mixtures are formed by atomswith covalent
bonds
b. Compounds are created from atoms joined together by chemical bonds
c. Compounds can be easily broken apart by ordinary means
d. Mixtures are composed of atoms joined in specific ratios
10. All but which of the following are compounds?: a. Carbohydrates
b. A bowl of soup
c. Lipids
d. Water
11. Lipids and proteins are examples of:: a. Mixtures b. Solutions c. Compounds
d. Carbohydrates
