Biology Chapter 2 review BJU

what is temperature

• the amount of atoms present in the nucleus

• the speed of moving particles

• the attraction of matter

• the speed of light

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when a peptide bond forms between to amino acids, what is released?

• CH4

• CO2

• H2O

• K2

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a compound that is held together by opposite electrical charges is a

• ionic compound

• shared compound

• covalent compound

• short compound

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the attraction of one water molecule for another is known as

• polarity

• adhesion

• oxygen

• cohesion

all organic compounds contain what

• O2

• CO2

• H2

• N2

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covalent compounds form when atoms _____ electrons

• gain

• lose

• exchange

• share

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which is not a reason why carbon is important

• it forms graphite and diamonds

• it forms chains and rings

• it can bond with itself

• it can form up to four bonds

the main purpose of carbohydrates it for?

• storage

• fuel

• body covering

• information

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chemistry is the study of matter and the changes it experiences

• true

• false

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the smallest part of a covalent bond is a formula unit

• true

• false

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