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Exam 2: Chemistry Comes Alive

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Question 21

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Match the following: -Blood.

A) Compound
B) Mixture
C) Element

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Question 22

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Match the following: -Water.

A) Compound
B) Mixture
C) Element

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Question 23

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Figure 2.1 Using Figure 2.1, match the following: -Tertiary (protein) structure.

Match the following particles to the correct description: -Neutral subatomic particle.

What is a dipole?

Figure 2.1 Using Figure 2.1, match the following: -Polysaccharide.

Which of the following is chemically inert (unreactive) ?

The single most abundant protein in the body is ________.

The pH of body fluids must remain fairly constant for the body to maintain homeostasis.

An acid with a pH of 6 has ________ hydrogen ions than pure water.

Omega-3 fatty acids appear to decrease the risk of heart disease.

Buffers resist abrupt and large changes in the pH of body fluids by releasing or binding ions.

What is a chain of more than 50 amino acids called?

Covalent bonds are generally less stable than ionic bonds.

Glycogen,the storage form of glucose,is primarily stored in skeletal muscle and liver cells.

Match the following: -Energy that travels in waves.Part of the electromagnetic spectrum.

The numbers listed represent the number of electrons in the first,second,and third energy levels,respectively.On this basis,which of the following is an unstable or reactive atom?

The fact that no chemical bonding occurs between the components of a mixture is the chief difference between mixtures and compounds.

How can phospholipids form a film when mixed in water?

Forming glycogen as energy storage in the liver is an example of ________.