Free Printable Unit 1: Biochem & Cells Review

Free Printable Worksheets

Worksheets

Unit 1: Biochem & Cells Review

Total questions: 120

Worksheet time: 10hrs 0mins

Name

Class

Date

1.

What is the main use of a carbohydrate?

a)

build muscles

b)

insulation

c)

quick energy

d)

store genetic information

2.

What is one of the main functions of Proteins?

a)

heredity

b)

speed up reactions

c)

insulate

d)

energy

3.

What is the monomer of carbohydrates?

a)

monosaccharide

b)

fatty acids

c)

amino acids

d)

polysaccharide

4.

What is the monomer of a protein

a)

glycerol and fatty acids

b)

amino acid

c)

monosaccharide

d)

nucleic acid

5.

What is one of the main functions of a lipid?

a)

insulation

b)

building structures

c)

quickest form of energy

d)

transmit genetic information

6.

What is the molecule responsible for doing?

a)

enzymes

b)

quick energy

c)

heredity

d)

insulation

7.

What is the main function of this molecule?

a)

build muscle

b)

quick form of energy

c)

stores genetic information

d)

speeds up reactions

8.

Methionine is one amino acid. When added to other amino acids they all create a chain using polypeptide bonds. What is one amino acid called?

a)

polymer

b)

monomer

c)

single A

d)

monoacid

9.

Methionine is one amino acid. When added to other amino acids they all create a chain using polypeptide bonds. What are many amino acids called?

a)

polymer

b)

glycerol

c)

monomer

d)

polyacid

10.

Sucrose is a disaccharide. Sucrose is made when 1 glucose molecule bonds with 1 fructose molecule. Select all the statements that are true.

a)

Glucose is a monosaccharide therefore it is the monomer for carbohydrates

b)

Sucrose is the monomer for carbohydrates because monomer means many molecules together

c)

Glucose is an example of a monosaccharide

d)

Sucrose is a polymer because it is made up of many monomers.

11.

Which model represents the breaking down of a sugar using an enzyme?

a)

b)

c)

d)

12.

Which model represents the building up a molecule using an enzyme?

a)

b)

c)

d)

13.

Which image shows an increase in substrate, no increase in enzyme. The active sites are occupied.

a)

b)

c)

d)

14.

We need to produce an enzyme to speed up a particular reaction in our bodies, which 2 cell structures would be involved in the synthesis of these enzymes?

a)

centrioles and cytoplasm

b)

nucleus and ribosomes

c)

golgi apparatus and lysosome

d)

rough ER and nucleus

15.

The plant needs energy. Which to organelles would be responsible for making and storing energy?

a)

cytoplasm and cell membrane

b)

nucleus and ribosomes

c)

lysosomes and cell wall

d)

chloroplast and mitochondria

16.

Which of the following statements best describes the word homeostasis?

a)

Maintaining a stable internal environment that is favorable for the organism.

b)

Inability to adapt and become stable in your environment.

c)

Making an environment extreme.

d)

Diseased organisms unable to survive in an environment.

17.

What is the main function of a Golgi in a cell?

a)

Allows molecules to enter or exit the cell.

b)

Makes important proteins necessary for life.

c)

Packages proteins made by ribosomes to export out of the cell.

d)

Creates and stores the genetic information inside the cell.

18.

What is the main function of a cell membrane in a cell?

a)

Allows molecules to enter or exit the cell.

b)

Makes important proteins necessary for life.

c)

Packages proteins made by ribosomes to export out of the cell.

d)

Creates and stores the genetic information inside the cell.

19.

What is the main function of a nucleus in a cell?

a)

Allows molecules to enter or exit the cell.

b)

Makes important proteins necessary for life.

c)

Packages proteins made by ribosomes to export out of the cell.

d)

Creates and stores the genetic information inside the cell.

20.

What is the main function of a ribosome in a cell?

a)

Allows molecules to enter or exit the cell.

b)

Makes important proteins necessary for life.

c)

Packages proteins made by ribosomes to export out of the cell.

d)

Creates and stores the genetic information inside the cell.

21.

What is the main function of a nucleus in a cell?

a)

Allows molecules to enter or exit the cell.

b)

Makes important proteins necessary for life.

c)

Packages proteins made by ribosomes to export out of the cell.

d)

Creates and stores the genetic information inside the cell.

22.

Organelles work together to maintain homeostasis in our bodies. Select the answer that describes this relationship.

a)

Vacuoles create amino acids so that the centrioles can create proteins.

b)

Chloroplasts create sugars so that the mitochondria can use the sugar for energy.

c)

Nucleus creates proteins so that the Golgi can export to other cells

d)

The rough ER makes lipids so that the smooth ER could convert it to sugar.

23.

Which statements are true about cell walls?

a)

Cell walls only exist in Animal cells.

b)

Cells walls provide support.

c)

Cell walls are responsible for photosynthesis

d)

Cells are found in plant cells.

24.

What are the 4 things that every cell has?

a)

Cell wall

b)

Cell membrane

c)

Ribosomes

d)

Cytoplasm

e)

Genetic Material

25.

What is a lysosome responsible for doing?

a)

storing the genetic material

b)

making proteins

c)

breaking down waste

d)

moves the organelles in the cell around

26.

How are the functions of a carbohydrate and a lipid similar?

a)

Both lower the activation energy of reactions

b)

Both are a source of energy

c)

Both dissolve nutrients

d)

Both have instructions for making proteins

27.

Which of the following explains the role enzymes play in the process of digestion?

a)

They assure that digestion occurs within hours instead of days

b)

They improve the peristaltic movement of the intestines

c)

They increase the amount of acid released from the stomach

d)

They prevent lipids from being absorbed into the blood stream

28.

Which sequence is listed in order from simplest to most complex?

a)

tissue-cell-organ system-organ

b)

cell-tissue-organ- organ system

c)

cell-tissue-organism-organ

d)

organism-tissue-organ-organ system

29.

Which organic molecule is primarily used by cells as a source of energy?

a)

Amino Acid

b)

Fatty Acid

c)

Glucose

d)

Protein

30.

Which is true about the structure of starch molecules and protein
molecules?

a)

Starches and proteins are both polymers.

b)

Starches and proteins are both amino acids.

c)

Starches and proteins are both built from simple sugars.

d)

Starches and proteins are both built from nucleic acids.

31.

Which organic compounds necessary for life are formed by a sugar bonded
to a phosphate group and a nitrogenous base?

a)

lipids

b)

proteins

c)

nucleic acids

d)

carbohydrates

32.

Which is a function of lipids?

a)

to supply cells with quick–release energy

b)

to provide the body with insulation

c)

to store genetic information

d)

to regulate cell processes

33.

Which best explains the function of the sequence of nucleotides?

a)

It provides energy.

b)

It carries genetic information.

c)

It allows DNA to be successfully copied.

d)

It determines the shape of the DNA molecule.

34.

Proteins are compounds formed in the cells of plants and animals. Which element is included in every protein molecule?

a)

calcium

b)

carbon

c)

fluorine

d)

sodium

35.

Which is a least likely primary function of proteins?

a)

to act as an organic catalyst

b)

to supply short-term energy

c)

to build and repair damaged cells

d)

to defend against foreign invaders

36.

Which organic molecule is paired with its function?

a)

nucleic acid : to store energy

b)

proteins : to provide insulation

c)

lipids : to regulate metabolic processes

d)

carbohydrate : to provide quick–release energy

37.

Fats are specialized lipid molecules, and enzymes are specialized protein molecules. How do
the functions of fats and enzymes differ?

a)

Fats are structural building materials, while enzymes are transportation molecules.

b)

Fats provide support for cells, while enzymes lower the pH of gastric fluids.

c)

Fats regulate body functions, while enzymes denature invasive bacteria.

d)

Fats are storage molecules, while enzymes are catalytic molecules.

38.

Which organic molecule serves as a catalyst?

a)

lipids

b)

proteins

c)

nucleic acid

d)

carbohydrates

39.

Which are the building blocks of most lipid molecules?

a)

glucose and protein

b)

glucose and fatty acids

c)

fatty acids and glycerol

d)

amino acids and glycerol

40.

Which of these statements describes how monomers combine and create macromolecules?

a)

Amino acids combine to make proteins.

b)

Glucose molecules combine to make nucleic acids.

c)

Nucleic acids combine to make starch.

d)

Proteins combine to make glucose.

41.

All organisms contain DNA and RNA. What are the subunits of DNA and RNA?

a)

simple sugars

b)

amino acids

c)

carbohydrates

d)

nucleotides

42.

What is the significance of nucleic acids for cells?

a)

They generate energy for the cell.

b)

They restrict what enters and leaves the cell.

c)

They support and maintain the shape of the cell.

d)

They provide all instructions for cellular activities.

43.

What is most likely being shown?

a)

amino acids

b)

chromosomes

c)

DNA

d)

RNA

44.

Which best describes the role of hemoglobin in red blood cells?

a)

It hydrates human body tissues.

b)

It supplies support to human body tissues.

c)

It transports oxygen to human body tissues.

d)

It increases the rate of reactions in body tissues.

45.

In organisms, macromolecules are made up of subunits. Which of these pairs correctly describes
how a macromolecule is constructed?

a)

DNA is made up of nucleic acids.

b)

Protein is made up of amino acids.

c)

Nucleic acids are made up of DNA.

d)

Amino acids are made up of protein.

46.

Which best explains enzyme specificity?

a)

An enzyme reacts best at a certain pH.

b)

An enzyme reacts best at a certain temperature.

c)

An enzyme is able to react with only one substrate.

d)

An enzyme is able to react with many different substrates.

47.

Why are enzymes essential to all multicellular organisms?

a)

They provide insulation.

b)

They produce living tissue.

c)

They contain genetic information.

d)

They catalyze metabolic reactions.

48.

Why is the “lock and key” analogy often used to describe enzyme
function?

a)

Each enzyme is the same as its substrate.

b)

Each enzyme will fit with only one specific kind of substrate.

c)

Each enzyme can only be used once in a reaction and cannot be used
again.

d)

Each enzyme has its own active site that will not fit with other active
sites.

49.

Enzymes act as catalysts in biochemical reactions. Which is the enzyme?

a)

w

b)

x

c)

y

d)

wx

50.

Which best describes how an enzyme affects the rate of a chemical
reaction?

a)

It increases the temperature of the reaction.

b)

It lowers the activation energy of the reaction.

c)

It changes the products created in the reaction.

d)

It causes the reaction to proceed in an unfavorable direction.

51.

Amylase is a biocatalyst that hydrolyzes starch into simple sugar
molecules in the pancreas. Which best describes amylase?

a)

lipid

b)

protein

c)

fatty acid

d)

carbohydrate

52.

Which best explains how the structure of enzymes is related to their
function?

a)

Enzyme structures release the energy in their substrates.

b)

Enzyme structures react with their substrates.

c)

Enzymes’ unique active site allows it to fit with only one substrate
molecule.

d)

Enzymes interact with their substrates like welders building a steel
skyscraper.

53.

Which best explains the purpose of the active site of an enzyme?

a)

The active site is for the attachment of the substrate.

b)

The active site changes to fit any available substrate.

c)

The active site determines how many reactions will be catalyzed.

d)

The active site determines how fast the reaction is allowed to occur.

54.

Which type of substances serves as a catalyst for reactions that break large food molecules into
smaller useful molecules?

a)

enzymes

b)

vitamins

c)

lipids

d)

nucleotides

55.

To which class of organic compounds do enzymes belong?

a)

proteins

b)

fatty acids

c)

nucleic acids

d)

monosaccharides

56.

All organisms contain four organic molecules. Which group of molecules contains fatty acids and glycerol, is insoluble in water, and functions in long term energy storage?

a)

carbohydrates

b)

nucleic acids

c)

proteins

d)

lipids

57.

Fats, oils and cholesterol are all types of what?

a)

Cell Membranes

b)

Hormones

c)

Lipids

d)

Fatty Acids

58.

______ function consists of quick energy, energy storage, & structure in cell-wall in plants.

a)

carbohydrates

b)

lipids

c)

proteins

d)

nucleic acid

59.

Fats, oils, waxes & hormones are examples of ______.

a)

Carbohydrates

b)

Lipids

c)

Proteins

d)

Nucleic acids

60.

_____ = energy storage for animals in liver & muscles

a)

Starch

b)

Glycogen

c)

Cellulose

d)

Chitin

61.

What would happen to the prey population if predators were absent from the habitat?

a)

The prey population would become extinct.

b)

The prey population would significantly increase.

c)

The prey population would remain in equilibrium.

d)

The prey population would significantly decrease.

62.

How do photosynthesis and cellular respiration differ?

a)

Photosynthesis uses food and cellular respiration produces food.

b)

Photosynthesis uses oxygen and cellular respiration uses carbon dioxide.

c)

Photosynthesis breaks down carbohydrates and cellular respiration produces carbohydrates.

d)

Photosynthesis gives off oxygen and cellular respiration uses oxygen.

63.

What are the products of aerobic cellular respiration?

a)

glucose and water

b)

glucose and oxygen

c)

carbon, hydrogen, and water

d)

carbon dioxide, water, and energy

64.

Which equation represents cellular respiration?

a)

C₆H₁₂O₆ + 6O₂--> 6CO₂ + 6H₂O

b)

6CO₂ + 6H₂O-->C₆H₁₂O₆ + 6O₂

c)

C₆H₁₂ + 5O₂--> 3CO₂ + 4H₂O

d)

3CO₂ + 4H₂O-->C₆H₈ + 5O₂

65.

What products are produced during photosynthesis?

a)

chloride and sugar

b)

nitrogen and sugar

c)

carbon dioxide and sugar

d)

oxygen and sugar

66.

The primary source of energy for nearly all life is the Sun. Which best describes how green plants utilize this energy?

a)

Green plants convert thermal energy into organic compounds.

b)

Green plants use electromagnetic energy to release heat.

c)

Green plants use mechanical energy to release water

d)

Green plants convert radiant energy and compounds into food

67.

Macromolecules are the building blocks of all ____.

a)

carbon

b)

oxygen

c)

phospholipids

d)

cells

68.

Potatoes are examples of ___.

a)

carbohydrates

b)

monosaccharide

c)

disaccharide

d)

polysaccharide

69.

In animals, glycogen is stored in ___.

a)

liver

b)

muscles

c)

liver & muscles

d)

none are correct

70.

Cellulose is found in ___.

a)

Liver

b)

Muscles

c)

Chloroplast

d)

Cell wall

71.

Diffusion is a form of...

a)

Active Transport

b)

Passive Transport

72.

Which of the following is NOT a type of passive transport?

a)

Osmosis

b)

Diffusion

c)

Endocytosis

d)

Facilitated Diffusion

73.

Diffusion is the movement of molecules from

a)

an area of equilibrium to an area of high concentration.

b)

an area of low concentration to an area of high concentration.

c)

an area of high concentration to an area of high concentration.

d)

an area of high concentration to an area of low concentration.

74.

The movement of water through a semi-permeable membrane is called ___________.

a)

active transport

b)

respiration

c)

osmosis

d)

diffusion

75.

Which type of movement requires cellular energy?

a)

osmosis

b)

active transport

c)

diffusion

d)

facilitated diffusion

76.

What are the three types of passive transport?

a)

osmosis, diffusion, active transport

b)

active transport, facilitated diffusion, osmosis

c)

diffusion, osmosis, facilitated diffusion

d)

facilitated diffusion, active transport, diffusion

77.

What type of transport is this?

a)

Endocytosis

b)

Exocytosis

c)

Diffusion

d)

Sodium-Potassium Pump

78.

What type of transport is this?

a)

Endocytosis

b)

Diffusion

c)

Exocytosis

d)

Osmosis

79.

What type of organelle is used during endocytosis and exocytosis?

a)

Endoplasmic Reticulum

b)

Golgi Body

c)

Vesicle

d)

Lysosome

80.

Which type of transport can get rid of cellular wastes?

a)

Protein Pumps

b)

Endocytosis

c)

Exocytosis

d)

Facilitated Diffusion

81.

Which type of transport uses protein channels to help the particles move across the cell membrane?

a)

endocytosis

b)

osmosis

c)

facilitated diffusion

d)

exocytosis

82.

Particles get in and out of a cell by passing through the _.

a)

Cell membrane

b)

Cytoplasm

c)

Vacuole

d)

Nucleus

83.

In active transport, cells need _ to move particles cross the cell membrane.

a)

Sleep

b)

Movement

c)

Energy

d)

Sun

84.

True or false. Passive transport does not need energy to happen.

a)

True

b)

False

85.

Does active transport require ATP?

a)

Yes

b)

No

86.

What are examples of passive transport (3 correct answers)

a)

Simple diffusion

b)

Exocytosis

c)

Osmosis

d)

Facilitated diffusion

e)

Endocytosis

87.

What is diffusion

a)

A net process of a molecule moving from a high concentration to low concentration

b)

A net process of a molecule moving from a low concentration to high concentration

c)

A movement of water across a semipermeable membrane from high to low water concentration

88.

What is active transport

a)

A process of a movement of molecules from a high to low concentration that doesn’t use energy

b)

A process of movement of molecules from a low to high concentration that uses energy

89.

What is endocytosis

a)

A process when the secretory vesicles eject the items they absorbed

b)

A process when cells absorb external item by engulfing them

c)

A movement process when water molecules go from high to low concentration

90.

Where is there a low concentration of dye?

a)

at the bottom of cup

b)

in the color

c)

at the top of cup

d)

no concentration gradient

91.

The picture below is an example of _________________.

a)

osmosis

b)

isotonic

c)

diffusion

d)

active transport

92.

Osmosis is the movement of _____ across a membrane.

a)

food

b)

energy

c)

oxygen

d)

water

93.

Permeable means

a)

things can pass through

b)

the concentration levels are different

c)

it is permanent

d)

things are stuck

94.

Passive transport requires no

a)

concentration gradients

b)

osmosis

c)

motion

d)

energy

95.

What is diffusion?

a)

when molecules move

b)

when molecules move from a high concentration to a low.

c)

no movement

d)

molecules move everywhere

96.

Which type of transport requires an input of energy?

a)

Passive Transport

b)

Osmosis

c)

Simple Diffusion

d)

Active Transport

97.

Which form of active transport is being shown?

a)

Facilitated Diffusion

b)

Exocytosis

c)

Endocytosis

d)

Protein Pumps

98.

Which is NOT a form of active transport?

a)

Endocytosis

b)

Osmosis

c)

Exocytosis

d)

Pinocytosis

99.

Which form of active transport is being shown?

a)

Pinocytosis

b)

Endocytosis

c)

Exocytosis

d)

Osmosis

100.

When cells form a vesicle to take in materials, which form of transport is occurring?

a)

Endocytosis

b)

Exocytosis

c)

Facilitated Diffusion

d)

Osmosis

101.

What is the difference between active and passive transport?

a)

Active does not need energy and passive uses ATP (energy)

b)

Active uses ATP (energy) and passive does not need energy

c)

Active stores transport proteins and passive releases

d)

Active uses hormones and passive does not

102.

Cells accomplish the majority of their growth.

a)

G1

b)

S

c)

G2

d)

M

103.

Chromosomes are replicated and proteins synthesized.

a)

G1

b)

S

c)

G2

d)

M

104.

The shortest of all the phases; chromosome replication is complete.

a)

G1

b)

S

c)

G2

d)

M

105.

Encompasses G1, S, and the G2 Phase.

a)

Cytokinesis

b)

Mitosis

c)

Interphase

d)

Meiosis

106.

The result is two daughter cells, each with 46 chromosomes.

a)

G1

b)

S

c)

G2

d)

M

107.

Chromosomes condense

Centrioles and spindle fibers appear

a)

Prophase

b)

Metaphase

c)

Anaphase

d)

Telophase

e)

Cytokinesis

108.

Chromosomes are lined up.

a)

Prophase

b)

Metaphase

c)

Anaphase

d)

Telophase

e)

Cytokinesis

109.

Chromosomes are pulled away.

a)

Prophase

b)

Metaphase

c)

Anaphase

d)

Telophase

e)

Cytokinesis

110.

Chromosomes gather at opposite ends of the cell; the nucleus begins to form back.

Note: The cells have not separated from each other.

a)

Prophase

b)

Metaphase

c)

Anaphase

d)

Telophase

e)

Cytokinesis

111.

Chromosomes gather at opposite ends of the cell; the nucleus begins to form back.

Note: The cells have physically separated.

a)

Prophase

b)

Metaphase

c)

Anaphase

d)

Telophase

e)

Cytokinesis

112.

The part of the chromosome labeled "a" (component comprised of two parts).

a)

Tetrad

b)

Chromotid

c)

Centromere

d)

Chromosome

113.

One half of a duplicated chromosome - labeled "d".

a)

Tetrad

b)

Chromotid

c)

Centromere

d)

Chromosome

114.

The point of attachment of the kinetochore, a structure to which the microtubules of the mitotic spindle become anchored - labeled "c".

a)

Tetrad

b)

Chromotid

c)

Centromere

d)

Chromosome

115.

Some species of starfish can reproduce by breaking off an arm or splitting in half. Each arm or half then becomes a whole new organism genetically identical to the parent. Which type of cell division occurs in this process?

a)

meoisis

b)

mitosis

c)

budding

d)

conjugation

116.

How does cytokinesis in plant cells differ from that of animal cells?

a)

The endoplasmic reticulum forms a cell plate.

b)

Microtubules are constructed into a cell plate pattern.

c)

The Golgi apparatus produces vesicles that migrate along

microtubules and fuse to make a cell plate.

d)

The plasma membrane divides by cytokinesis as in animal cells, and then secretes a cellulose cell wall (cell plate).

117.

The correct sequence of mitosis:

a)

metaphase, anaphase, telophase, prophase

b)

prophase, metaphase, anaphase, telophase

c)

prophase, anaphase, metaphase, telophase

d)

telophase, metaphase, prophase, anaphase

118.

During which cycle can you identify chromosomes

a)

G1 phase

b)

G2 phase

c)

S phase

d)

M phase

119.

Chromosomes are visible and spindle fibers start to appear

a)

prophase

b)

metaphase

c)

telophase

d)

anaphase

120.

After mitosis the number of chromosomes in the newly created cells will be:

a)

Half the number of the original cell

b)

The same number as the original cell

c)

Twice as much as the original cell

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