Free Printable 100-200 MCQs Biology Mid

1.

ATP contains

a)

carbohydrate.

b)

lipid.

c)

protein.

d)

phosphate.

e)

amine.

2.

The monomer of carbohydrates is

a)

amino acid.

b)

monosaccharide.

c)

nucleotide.

d)

fatty acid.

e)

glycerol.

3.

Glucose is a

a)

monosaccharide.

b)

disaccharide.

c)

polysaccharide.

d)

lipid.

e)

protein.

4.

Starch is stored in

a)

animals.

b)

bacteria.

c)

plants.

d)

fungi.

e)

protists.

5.

Cellulose is

a)

digestible by humans.

b)

plant cell wall.

c)

animal storage.

d)

energy source.

e)

soluble.

6.

Chitin is in

a)

fungi and exoskeletons.

b)

plants.

7.

Lipids are

a)

hydrophilic.

b)

polar.

c)

soluble in water.

d)

hydrophobic.

e)

charged.

8.

Fats are made of

a)

glucose.

b)

amino acids.

c)

glycerol and fatty acids.

d)

nucleotides.

e)

monosaccharides.

9.

Saturated fats have

a)

no double bonds.

b)

one double bond.

c)

many double bonds.

d)

rings.

e)

branches.

10.

Phospholipids have

a)

one fatty acid.

b)

two fatty acids and phosphate.

c)

three fatty acids.

d)

no glycerol.

e)

no phosphate.

11.

Steroids include

a)

fats.

b)

oils.

c)

waxes.

d)

phospholipids.

e)

cholesterol.

12.

Peptide bond links

a)

sugars.

b)

bases.

c)

amino acids.

d)

lipids.

e)

phosphates.

13.

Primary structure of protein is

a)

3D shape.

b)

amino acid sequence.

c)

alpha helix.

d)

beta sheet.

e)

function.

14.

Denaturation affects

a)

primary structure.

b)

covalent bonds.

c)

sequence.

d)

higher structures.

e)

amino acids.

15.

Chaperonins help

a)

A. protein folding.

b)

B. denaturation.

c)

C. hydrolysis.

d)

D. synthesis.

e)

E. degradation.

16.

Nucleic acids include

a)

proteins.

b)

carbs.

c)

DNA and RNA.

d)

lipids.

17.

Nucleotides have

a)

sugar only.

b)

base only.

c)

phosphate only.

d)

sugar and base.

e)

sugar, base, phosphate.

18.

DNA has

a)

uracil.

b)

thymine.

c)

ribose.

d)

single strand.

e)

no phosphate.

19.

RNA has

a)

uracil.

b)

thymine.

c)

deoxyribose.

d)

double helix.

e)

no function.

20.

Which of the following is the smallest structure that would most likely be visible with a standard light microscope?

a)

mitochondrion.

b)

microtubule.

c)

ribosome.

d)

virus.

e)

lysosome.

21.

A biologist ground up some plant leaf cells and then centrifuged the mixture. Which organelles would be in the pellet after 10,000 g?

a)

mitochondria.

b)

chloroplasts.

c)

endoplasmic reticulum.

22.

Movement of vesicles within the cell depends on

a)

microtubules and motor proteins.

b)

actin filaments only.

c)

ribosomes.

d)

centrioles only.

e)

Golgi.

23.

Phospholipids in membranes

a)

form channels.

b)

are hydrophilic.

c)

contribute to fluidity.

d)

are myelin.

e)

make impermeable.

24.

Pinocytosis is

a)

exocytosis.

b)

uptake of solutes in vesicles.

c)

osmosis.

d)

active transport.

e)

facilitated diffusion.

25.

Plant cells have larger volume due to

a)

higher surface-to-volume.

b)

convoluted membrane.

c)

large vacuole.

d)

spherical shape.

e)

chloroplasts.

26.

Protein secretion in prokaryotes

a)

uses endomembrane.

b)

uses Golgi.

c)

on plasma membrane ribosomes.

d)

requires binary fission.

e)

no ATP.

27.

Which of the following is responsible for shape and movement?

a)

rigid structure.

b)

water regulation.

c)

protein synthesis.

d)

shape and movement.

e)

genetic storage.

28.

Nuclear lamina

a)

maintains nucleus shape.

b)

synthesizes rRNA.

c)

regulates replication.

d)

packages chromosomes.

e)

transports mRNA.

29.

Nucleolus major component is

a)

chromatin.

b)

pores.

c)

rRNA.

d)

histones.

e)

polymerase.

30.

Cell theory states

a)

cells basic unit.

b)

organisms from cells.

c)

cells from cells.

d)

A and B.

e)

all.

31.

Prokaryotes lack

a)

DNA.

b)

nucleus.

c)

ribosomes.

d)

membrane.

e)

cytoplasm.

32.

Plasma membrane is

a)

phospholipid bilayer.

b)

protein only.

c)

carbohydrate.

33.

Nucleoid is in

a)

eukaryotes.

b)

plants.

c)

prokaryotes.

d)

animals.

e)

fungi.

34.

Eukaryotic cells have

a)

no organelles.

b)

circular DNA.

c)

small size.

d)

membrane-bound organelles.

e)

peptidoglycan.

35.

Light microscope resolution is

a)

0.1 nm.

b)

0.2 μm.

c)

2 nm.

d)

200 nm.

e)

2 mm.

36.

Electron microscope uses

a)

electrons.

b)

light.

c)

lenses only.

d)

stains only.

e)

living cells.

37.

Cell fractionation separates

a)

whole cells.

b)

tissues.

c)

organelles.

d)

molecules.

e)

atoms.

38.

Cytosol is

a)

A. membrane.

b)

B. fluid.

c)

C. organelle.

d)

D. molecule.

e)

E. atom.

39.

Chromosomes are in

a)

nucleus.

b)

cytoplasm.

c)

mitochondria.

d)

ribosome.

e)

ER.

40.

Endomembrane system includes

a)

nucleus.

b)

ER.

c)

Golgi.

d)

lysosomes.

e)

all except A.

41.

Rough ER has

a)

no ribosomes.

b)

smooth surface.

c)

ribosomes.

d)

lipid synthesis.

e)

detoxification.

42.

Smooth ER functions in

a)

protein synthesis.

b)

RNA production.

c)

packaging.

d)

lipid synthesis.

e)

digestion.

43.

Golgi apparatus

a)

synthesizes proteins.

b)

modifies and packages.

c)

stores energy.

d)

makes ATP.

44.

Lysosomes contain

a)

hydrolytic enzymes.

b)

DNA.

c)

ribosomes.

d)

lipids.

e)

sugars.

45.

Vacuoles in plants

a)

small.

b)

absent.

c)

large central.

d)

for energy.

e)

for movement.

46.

Mitochondria have

a)

one membrane.

b)

no DNA.

c)

no ribosomes.

d)

smooth.

e)

double membrane.

47.

Cristae are in

a)

mitochondria.

b)

chloroplasts.

c)

ER.

d)

Golgi.

e)

lysosomes.

48.

Chloroplasts are in

a)

animals.

b)

plants.

c)

bacteria.

d)

fungi.

e)

protists only.

49.

Thylakoids are

a)

stroma.

b)

matrix.

c)

one membrane.

50.

Question 151: Peroxisomes

a)

make ATP.

b)

photosynthesize.

c)

store fat.

d)

break down H2O2.

e)

package proteins.

51.

Cytoskeleton includes

a)

microtubules.

b)

microfilaments.

c)

intermediate filaments.

d)

A and B.

e)

all.

52.

Microtubules are made of

a)

tubulin.

b)

actin.

c)

keratin.

d)

myosin.

e)

dynein.

53.

Centrosome contains

a)

ribosomes.

b)

centrioles.

c)

nucleus.

d)

Golgi.

e)

ER.

54.

Cilia and flagella have

a)

9+0

b)

7+2

c)

9+2

d)

9+1

e)

10+2

55.

Basal body is

a)

similar to a centriole

b)

a structure found at the base of cilia and flagella

56.

Dynein causes

a)

extension.

b)

contraction.

c)

rotation.

d)

bending.

e)

straightening.

57.

Plant cell wall is

a)

chitin.

b)

cellulose.

c)

peptidoglycan.

d)

lipid.

e)

protein.

58.

Plasmodesmata connect

a)

plant cells.

b)

animal cells.

c)

bacterial cells.

d)

fungal cells.

e)

protist cells.

59.

Tight junctions

a)

allow passage.

b)

for communication.

c)

prevent leakage.

d)

anchor.

e)

in plants.

60.

Desmosomes

a)

anchor cells.

b)

seal.

c)

communicate.

d)

in plants.

61.

Question 162: Gap junctions

a)

seal.

b)

allow communication.

c)

anchor.

d)

in plants.

e)

block.

62.

Extracellular matrix in animals is

a)

cellulose.

b)

chitin.

c)

peptidoglycan.

d)

collagen and glycoproteins.

e)

lipid.

63.

Prokaryotic flagella are

a)

9+2.

b)

membrane-bound.

c)

protein flagellin.

d)

for photosynthesis.

e)

in eukaryotes.

64.

Pili are for

a)

attachment/conjugation.

b)

movement.

c)

photosynthesis.

d)

storage.

e)

digestion.

65.

Fimbriae help

a)

movement.

b)

adhesion.

c)

conjugation.

d)

division.

e)

protection.

66.

Cell size is limited by

a)

DNA amount.

b)

oxygen.

c)

surface area/volume ratio.

d)

mitochondria.

e)

diffusion.

67.

Nuclear envelope has

a)

double membrane with pores.

b)

single membrane.

c)

no pores.

d)

ribosomes.

e)

DNA.

68.

Chromatin is

a)

condensed DNA.

b)

RNA.

c)

DNA and protein.

d)

only protein.

e)

in prokaryotes.

69.

Ribosomes are

a)

membrane-bound.

b)

only in nucleus.

c)

only in mitochondria.

d)

free or bound.

e)

only in prokaryotes.

70.

Endoplasmic reticulum is continuous with

a)

Golgi.

b)

nuclear envelope.

c)

lysosomes.

d)

mitochondria.

e)

plasma membrane.

71.

Transport vesicles move from

a)

ER to Golgi.

b)

Golgi to ER.

c)

lysosomes to Golgi.

d)

mitochondria to ER.

72.

Lysosomes bud from

a)

ER.

b)

nucleus.

c)

Golgi.

d)

mitochondria.

e)

plasma membrane.

73.

Contractile vacuoles are in

a)

plants.

b)

animals.

c)

fungi.

d)

bacteria.

e)

protists.

74.

Mitochondrial DNA is

a)

circular.

b)

linear.

c)

double helix only.

d)

in nucleus.

e)

absent.

75.

Chloroplast DNA is

a)

absent.

b)

circular.

c)

in nucleus.

d)

linear only.

e)

in mitochondria.

76.

Endosymbiotic theory explains

a)

nucleus.

b)

ER.

c)

Golgi.

d)

mitochondria and chloroplasts.

e)

lysosomes.

77.

Microfilaments are

a)

tubulin.

b)

keratin.

c)

actin.

78.

Intermediate filaments include

a)

keratin.

b)

actin.

c)

tubulin.

d)

myosin.

e)

flagellin.

79.

Motor proteins include

a)

actin.

b)

tubulin.

c)

keratin.

d)

collagen.

e)

kinesin and dynein.

80.

Photosynthesis occurs in

a)

chloroplasts.

b)

mitochondria.

c)

nucleus.

d)

cytoplasm.

e)

ER.

81.

Cellular respiration occurs in

a)

chloroplasts.

b)

mitochondria.

c)

nucleus.

d)

ER.

e)

Golgi.

82.

NADH is converted to

a)

ATP.

b)

O2.

c)

NAD+.

d)

CO2.

e)

FADH2.

83.

Which of the following is required for photosynthesis?

a)

light.

b)

glucose.

c)

ATP.

d)

NADH.

e)

O2.

84.

Cellular respiration consumes

a)

CO2.

b)

light.

c)

H2O.

d)

O2.

e)

NADH.

85.

Redox reactions involve

a)

only reduction.

b)

electron transfer.

c)

only oxidation.

d)

no energy.

e)

protons only.

86.

Oxygen is not a product of

a)

photosynthesis.

b)

light reactions.

c)

cellular respiration.

d)

Calvin cycle.

e)

thylakoid.

87.

Most ATP in respiration comes from

a)

electron transport chain.

b)

glycolysis.

c)

Krebs.

d)

fermentation.

e)

pyruvate.

88.

Final electron acceptor is

a)

NAD+.

b)

oxygen.

c)

FAD.

d)

CO2.

89.

Oxidative phosphorylation produces

a)

2 ATP.

b)

4 ATP.

c)

most ATP.

d)

no ATP.

e)

O2.

90.

Light reactions in

a)

thylakoid membranes.

b)

stroma.

c)

mitochondria.

d)

cytoplasm.

e)

nucleus.

91.

Plasma membrane is

a)

rigid.

b)

fluid mosaic.

c)

protein only.

d)

carbohydrate.

e)

impermeable.

92.

Selective permeability means

a)

all pass.

b)

none pass.

c)

some pass.

d)

only water.

e)

only ions.

93.

Diffusion is

a)

active.

b)

energy requiring.

c)

against gradient.

d)

passive.

e)

vesicular.

94.

Osmosis is diffusion of

a)

water.

b)

ions.

c)

glucose.

d)

protein.

e)

ATP.

95.

Hypertonic solution causes

a)

swell.

b)

shrink.

c)

no change.

d)

burst.

e)

plasmolyze.

96.

Isotonic means

a)

higher solute.

b)

lower solute.

c)

equal solute.

d)

no solute.

e)

water only.

97.

Facilitated diffusion uses

a)

energy.

b)

against gradient.

c)

vesicles.

d)

pumps.

e)

channels/proteins.

98.

Active transport requires

a)

ATP.

b)

no energy.

c)

passive.

d)

diffusion.

e)

osmosis.

99.

Sodium-potassium pump

a)

passive.

b)

into cell.

c)

equal ions.

d)

3 Na out, 2 K in.

e)

no ATP

100-200 MCQs Biology Mid

Total questions: 99

Worksheet time: 50mins

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