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1.

Biology is the study of:

a)

Chemistry

b)

Cells only

c)

Life

d)

Rocks

2.

Smallest unit of life:

a)

Atom

b)

Molecule

c)

Cell

d)

Tissue

3.

Emergent properties result from:

a)

Atoms

b)

DNA

c)

Interactions

d)

Chance

4.

Homeostasis means:

a)

Energy use

b)

Internal balance

c)

Growth

d)

Evolution

5.

Negative feedback example:

a)

Clotting

b)

Labor

c)

Sweating

d)

Lactation

6.

Positive feedback:

a)

Stabilizes

b)

Stops change

c)

Amplifies response

d)

No effect

7.

Inductive reasoning:

a)

General→specific

b)

Specific→general

c)

Theory→law

d)

Guessing

8.

Deductive reasoning:

a)

Observation→theory

b)

Prediction from theory

c)

Random

d)

Guessing

9.

Independent variable:

a)

Measured

b)

Control

c)

Manipulated

d)

Conclusion

10.

Dependent variable:

a)

Manipulated

b)

Measured

c)

Constant

d)

Hypothesis

11.

Control group is used for:

a)

Treatment

b)

Comparison

c)

Manipulation

d)

Conclusion

12.

Scientific hypothesis must be:

a)

Proven

b)

Testable

c)

Correct

d)

Complex

13.

Theory differs from hypothesis because it is:

a)

A guess

b)

Broad and supported

c)

Unproven

d)

Temporary

14.

Population includes:

a)

One organism

b)

Same species in area

c)

All species

d)

Ecosystem

15.

Community includes:

a)

One species

b)

Multiple species

c)

Only plants

d)

Abiotic factors

16.

Ecosystem includes:

a)

Only living

b)

Biotic only

c)

Biotic + abiotic

d)

Population only

17.

Biosphere refers to:

a)

Earth's land

b)

Earth's life zones

c)

Atmosphere

d)

Oceans only

18.

Cell theory states cells:

a)

Appear spontaneously

b)

Come from preexisting cells

c)

Are optional

d)

Are identical

19.

Prokaryotic cells lack:

a)

DNA

b)

Ribosomes

c)

Nucleus

d)

Membrane

20.

Eukaryotic cells have:

a)

No organelles

b)

Nucleus

c)

Circular DNA

d)

70S ribosomes

21.

Metabolism refers to:

a)

Breathing

b)

Chemical reactions

c)

Movement

d)

Growth only

22.

Energy is:

a)

Matter

b)

Ability to do work

c)

Heat only

d)

ATP only

23.

Feedback loop includes:

a)

Stimulus

b)

Response

c)

Regulator

d)

All

24.

Positive feedback example:

a)

Sweating

b)

Blood clotting

c)

Thermoregulation

d)

Glucose control

25.

Matter is:

a)

Energy

b)

Mass and volume

c)

Living only

d)

Gas only

26.

Element is:

a)

Compound

b)

Pure substance

c)

Mixture

d)

Molecule

27.

Atom is:

a)

Unit of life

b)

Unit of element

c)

Cell

d)

Compound

28.

Valence electrons are in:

a)

Nucleus

b)

Inner shell

c)

Outer shell

d)

Neutrons

29.

Covalent bonds:

a)

Transfer electrons

b)

Share electrons

c)

Lose neutrons

d)

Ionic only

30.

Polar bond means:

a)

Equal sharing

b)

Unequal sharing

c)

No electrons

d)

Full transfer

31.

Water is polar because:

a)

Linear shape

b)

Bent shape

c)

Neutral charge

d)

No bonds

32.

Hydrogen bonds are:

a)

Strong

b)

Weak attractions

c)

Ionic

d)

Peptide

33.

Acids increase:

a)

OH−

b)

pH

c)

H+

d)

Buffers

34.

Bases increase:

a)

H+

b)

pH

c)

Electrons

d)

Atoms

35.

pH scale measures:

a)

Energy

b)

Acidity

c)

Temperature

d)

Pressure

36.

Buffer function:

a)

Destroy acids

b)

Resist pH change

c)

Increase temp

d)

Break bonds

37.

Hydroxyl group:

a)

–CH3

b)

–COOH

c)

–OH

d)

–NH2

38.

Carboxyl group:

a)

–OH

b)

–NH2

c)

–COOH

d)

–CH3

39.

Amino group:

a)

–COOH

b)

–NH2

c)

–OH

d)

–CH3

40.

Methyl group:

a)

–CH3

b)

–OH

c)

–COOH

d)

–NH2

41.

Isomers differ in:

a)

Formula

b)

Structure

c)

Elements

d)

Mass

42.

Structural isomers differ in:

a)

Electron number

b)

Atom arrangement

c)

Charge

d)

Mass

43.

Cis-trans isomers differ in:

a)

Bond type

b)

Double bond orientation

c)

Mass

d)

Charge

44.

Energy stored in bonds is:

a)

Kinetic

b)

Potential

c)

Thermal

d)

Radiant

45.

Chemical reactions involve:

a)

Energy change

b)

Bond breaking/forming

c)

Reactants

d)

All

46.

Reactants are:

a)

Products

b)

Starting materials

c)

Results

d)

Energy

47.

Products are:

a)

Reactants

b)

Results

c)

Energy

d)

Atoms

48.

Exergonic reactions:

a)

Require energy

b)

Release energy

c)

No energy

d)

Store energy

49.

Endergonic reactions:

a)

Release energy

b)

Require energy

c)

No ATP

d)

Always spontaneous

50.

ATP stores energy in:

a)

Phosphate bonds

b)

Sugar

c)

Base

d)

Ribose

51.

Enzymes are:

a)

Lipids

b)

Proteins

c)

Carbs

d)

DNA

52.

Enzyme specificity due to:

a)

Shape

b)

Charge

c)

pH

d)

Temperature

53.

Active site binds:

a)

Product

b)

Substrate

c)

ATP

d)

DNA

54.

Monosaccharide:

a)

Protein

b)

Single sugar

c)

Lipid

d)

DNA

55.

Disaccharide:

a)

Two sugars

b)

Protein

c)

Fat

d)

RNA

56.

Polysaccharide:

a)

Many sugars

b)

Protein

c)

Lipid

d)

DNA

57.

Glycosidic bonds link:

a)

Amino acids

b)

Sugars

c)

Fatty acids

d)

Bases

58.

Saturated fatty acid:

a)

Bent

b)

Double bond

c)

Straight

d)

Polar

59.

Unsaturated fatty acid:

a)

Straight

b)

No bond

c)

Bent

d)

Saturated

60.

Phospholipid head is:

a)

Nonpolar

b)

Polar

c)

Neutral

d)

Hydrophobic

61.

Phospholipid tails are:

a)

Polar

b)

Charged

c)

Nonpolar

d)

Hydrophilic

62.

Amphipathic means:

a)

Hydrophobic

b)

Hydrophilic

c)

Both

d)

Charged

63.

Steroids are:

a)

Carbs

b)

Proteins

c)

Lipids

d)

DNA

64.

Steroid structure:

a)

Chains

b)

Sugar rings

c)

4 fused rings

d)

Phosphate

65.

Proteins are polymers of:

a)

Sugars

b)

Fats

c)

Amino acids

d)

Bases

66.

Amino acid backbone includes:

a)

R group

b)

Amino + carboxyl

c)

Phosphate

d)

Sugar

67.

R group determines:

a)

Backbone

b)

Properties

c)

Bond type

d)

Polarity only

68.

Peptide bond forms via:

a)

Hydrolysis

b)

Dehydration

c)

Ionic bonding

d)

Hydrogen bonding

69.

Primary protein structure:

a)

Sequence

b)

Helix

c)

Fold

d)

Complex

70.

Secondary structure includes:

a)

Alpha helix

b)

R group

c)

Primary

d)

Peptide

71.

Tertiary structure:

a)

Overall 3D shape

b)

Sequence

c)

Backbone

d)

Subunits

72.

Quaternary structure:

a)

Multiple polypeptides

b)

Single chain

c)

Helix

d)

Fold

73.

Denaturation affects:

a)

Primary

b)

Secondary+

c)

Sequence

d)

Peptide bonds

74.

Nucleotides consist of:

a)

Sugar-base-phosphate

b)

Protein

c)

Fat

d)

Carb

75.

DNA sugar is:

a)

Ribose

b)

Deoxyribose

c)

Glucose

d)

Fructose

76.

RNA differs by:

a)

Thymine

b)

Uracil

c)

Double strand

d)

Deoxyribose

77.

DNA strands are:

a)

Parallel

b)

Antiparallel

c)

Circular

d)

Single

78.

Hydrolysis does what?

a)

Builds polymers

b)

Breaks polymers

c)

Forms bonds

d)

Stores energy

79.

Dehydration synthesis:

a)

Uses water

b)

Releases water

c)

Breaks bonds

d)

No enzymes

80.

Cellulose function:

a)

Energy storage

b)

Structure

c)

Signaling

d)

Enzyme

81.

Glycogen found in:

a)

Plants

b)

Animals

c)

Bacteria

d)

Fungi

82.

Starch found in:

a)

Animals

b)

Plants

c)

Fungi

d)

Bacteria

83.

Lipids are:

a)

Polymers

b)

Hydrophobic

c)

Charged

d)

Ionic

84.

Triglyceride has:

a)

1 FA

b)

2 FA

c)

3 FA

d)

4 FA

85.

Nucleolus function:

a)

Protein

b)

Lipid

c)

rRNA

d)

Detox

86.

Ribosomes make:

a)

ATP

b)

Lipids

c)

Proteins

d)

DNA

87.

Prokaryotic ribosomes:

a)

80S

b)

60S

c)

70S

d)

90S

88.

Free ribosomes make proteins for:

a)

Secretion

b)

Membranes

c)

Cytosol

d)

Golgi

89.

Bound ribosomes make proteins for:

a)

Cytosol

b)

Nucleus

c)

Secretion

d)

DNA

90.

Rough ER:

a)

Lipids

b)

Protein modification

c)

ATP

d)

DNA

91.

Smooth ER:

a)

Proteins

b)

Lipids & detox

c)

DNA

d)

ATP

92.

Golgi apparatus:

a)

Synthesis

b)

Sorting

c)

Energy

d)

DNA

93.

Cis Golgi face:

a)

Shipping

b)

Receiving

c)

DNA

d)

ATP

94.

Trans Golgi face:

a)

Receiving

b)

Shipping

c)

Ribosomes

d)

DNA

95.

Mitochondria function:

a)

Photosynthesis

b)

Respiration

c)

Translation

d)

Digestion

96.

Mitochondria DNA:

a)

Linear

b)

Circular

c)

None

d)

Chromosomal

97.

Chloroplast function:

a)

Respiration

b)

Photosynthesis

c)

Digestion

d)

Transport

98.

Chloroplast DNA:

a)

Linear

b)

Circular

c)

None

d)

Chromosomal

99.

Endosymbiont theory explains:

a)

Nucleus

b)

Mitochondria/chloroplasts

c)

ER

d)

Golgi

100.

Evidence includes:

a)

No DNA

b)

70S ribosomes

c)

80S ribosomes

d)

No membrane

101.

Cytoskeleton roles:

a)

Support

b)

Movement

c)

Transport

d)

All

102.

Microfilaments made of:

a)

Tubulin

b)

Actin

c)

Keratin

d)

Cellulose

103.

Microtubules made of:

a)

Actin

b)

Tubulin

c)

Keratin

d)

DNA

104.

Intermediate filaments:

a)

Dynamic

b)

Stable

c)

Thin

d)

Tubulin

105.

Cilia structure:

a)

9+2

b)

Single

c)

Actin

d)

Cellulose

106.

Flagella function:

a)

Attachment

b)

Movement

c)

Secretion

d)

Support

107.

Plant-only structure:

a)

Mitochondria

b)

Chloroplast

c)

Ribosome

d)

Nucleus

108.

Central vacuole:

a)

Protein synthesis

b)

Water storage

c)

ATP

d)

DNA

109.

Lysosome function:

a)

Photosynthesis

b)

Digestion

c)

Respiration

d)

Transport

110.

Peroxisomes break down:

a)

Proteins

b)

Fatty acids

c)

Sugars

d)

DNA

111.

Plasmodesmata are:

a)

Animal junctions

b)

Plant channels

c)

Membranes

d)

Proteins

112.

Extracellular matrix:

a)

Inside cell

b)

Outside cell

c)

Nucleus

d)

Cytosol

………eeee

Total questions: 112

Worksheet time: 56mins

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