Biology 2121 - Content Review and Practice Questions

Biology 2121 - Content Review and Practice Questions

Chapters 1-2

Name______

Please Note: Answers may be found on the last pages.

MATCHING. Choose the item in column 2 that best matches each item in column 1.

Match the following systems:

1)

Directly causes mechanical motion.

A)

Muscular

1)

______

2)

Responds to environmental changes by transmitting electrical impulses.

B)

Skeletal

2)

______

3)

Provides support and levers for muscles to work on.

C)

Integumentary

3)

______

D)

Nervous

4)

Protects underlying organs from mechanical damage and synthesizes vitamin D.

4)

______

Match the following systems:

5)

Controls the body with chemical molecules called hormones.

A)

Lymphatic

5)

______

6)

Delivers oxygen and nutrients to the tissues.

B)

Cardiovascular

6)

______

C)

Endocrine

7)

Produces antibodies that neutralize foreign substances.

7)

______

D)

Immune

8)

Removes and filters excess fluid from tissues.

8)

______

Match the following examples of feedback mechanisms:

9)

Blood glucose levels

A)

Negative feedback

9)

______

10)

Blood pressure

B)

Positive feedback

10)

______

11)

Blood clotting

11)

______

12)

Delivering a baby

12)

______

TRUE/FALSE. Write 'T' if the statement is true and 'F' if the statement is false.

13)

The anatomical position means the body is standing at attention with the palms facing forward and the thumbs pointing away from the body.

13)

______

14)

The elbow is proximal to the shoulder.

14)

______

15)

The serous membrane that lines the peritoneal cavity is called visceral peritoneum.

15)

______

16)

The right hypochondriac region contains the majority of the stomach.

16)

______

17)

Regardless of the variable being regulated, all homeostatic control mechanisms have at least three interdependent components.

17)

______

18)

The epigastric region is located superior to the umbilical region.

18)

______

SHORT ANSWER. Write the word or phrase that best completes each statement or answers the question.

19)

______is a term that describes the back of the elbow.

19)

______

20)

______peritoneum is the serous membrane that covers the intestines.

20)

______

21)

______physiology concerns urine production and kidney function.

21)

______

22)

The elbow is ______to the wrist.

22)

______

MATCHING. Choose the item in column 2 that best matches each item in column 1.

Match the following:

23)

A bond in which electrons are shared unequally.

A)

Polar covalent bond

23)

______

24)

A bond in which electrons are completely lost or gained by the atoms involved.

B)

Nonpolar covalent bond

24)

______

C)

Ionic bond

25)

A bond in which electrons are equally shared.

D)

Hydrogen bond

25)

______

26)

A type of bond important in tying different parts of the same molecule together into a three-dimensional structure.

26)

______

Match the following:

27)

Electrically charged particle due to loss of an electron.

A)

Cation

27)

______

28)

Neutral subatomic particle.

A)

Neutron

28)

______

29)

Smallest particle of an element that retains its properties.

B)

Molecule

29)

______

30)

Smallest particle of a compound that still retains its properties.

C)

Atom

30)

______

Match the following:

31)

Heterogeneous, will not settle.

A)

Solutions

31)

______

32)

Heterogeneous, will settle.

B)

Colloids

32)

______

33)

Homogeneous, will not settle.

C)

Suspensions

33)

______

34)

Will not scatter light.

34)

______

TRUE/FALSE. Write 'T' if the statement is true and 'F' if the statement is false.

35)

A charged particle is correctly called an ion.

35)

______

36)

About 60 to 80% of the volume of most living cells consists of organic compounds.

36)

______

37)

Our current thinking theorizes that Omega-3 fatty acids decrease the risk of heart disease.

37)

______

38)

The lower the pH, the higher the hydrogen ion concentration.

38)

______

39)

Hydrogen bonds are strong bonds.

39)

______

40)

Covalent bonds are generally weaker than ionic bonds.

40)

______

41)

Chemical bonding never occurs in a mixture.

41)

______

42)

All organic compounds are covalently bonded.

42)

______

43)

A dipeptide can be broken into two amino acids by dehydration synthesis.

43)

______

SHORT ANSWER. Write the word or phrase that best completes each statement or answers the question.

44)

The atomic number is equal to the number of ______.

44)

______

45)

An atom with three electrons would have a valence of ______.

45)

______

46)

AB → A + B is an example of a ______reaction.

46)

______

47)

Polysaccharides with long chains of similar units are called ______.

47)

______

48)

In a DNA molecule guanine would connect to ______.

48)

______

49)

Weak acids and bases make good ______.

49)

______

50)

The polar end of a phospholipid contains a ______.

50)

______

1)

A

2)

D

3)

B

4)

C

5)

C

6)

B

7)

D

8)

A

9)

A

10)

A

11)

B

12)

B

13)

TRUE

14)

FALSE

15)

FALSE

16)

FALSE

17)

TRUE

18)

TRUE

19)

Olecranal

20)

Visceral

21)

Renal

22)

proximal

23)

A

24)

C

25)

B

26)

D

27)

A

28)

A

29)

C

30)

B

31)

B

32)

C

33)

A

34)

A

35)

TRUE

36)

FALSE

37)

TRUE

38)

TRUE

39)

FALSE

40)

FALSE

41)

TRUE

42)

TRUE

43)

FALSE

44)

protons

45)

one

46)

decomposition

47)

polymers

48)

cytosine

49)

buffers

50)

phosphorus-containing group