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Cells: Worksheet

Total questions: 59

Worksheet time: 30mins

Name
Class
Date
1.

All living things are composed of cells and all cells come from earlier cells.

a)

True

b)

False

2.

Every cell was formed by division of a previously living cell.

a)

True

b)

False

3.

Cells are separated from the surrounding environment by a boundary. What is this boundary called?

a)

Cell Membrane

b)

Nucleus

c)

Cytoplasm

d)

Mitochondria

4.

Each cell must take in raw materials and expel waste through its boundary. What is the name of this boundary?

a)

Cell Membrane

b)

Nucleus

c)

Cytoplasm

d)

Mitochondria

5.

Each cell must absorb energy. Which of the following is NOT a usual source of energy for cells?

a)

Light

b)

Chemical bonds in molecules

c)

Sound

6.

Cells build biological molecules and cell parts for repair, growth, and reproduction.

a)

True

b)

False

7.

Each cell must have all its activities closely regulated and coordinated.

a)

True

b)

False

8.

Cells are specialized depending upon which of the following?

a)

A) Shapes

b)

B) Size

c)

C) Organelles

d)

D) All of the above

9.

What are the two main cell types?

a)

Prokaryotic and Eukaryotic

b)

Animal and Plant

c)

Red and White

d)

Somatic and Germ

10.

Which of the following is NOT an example of a eukaryotic cell?

a)

A) Protists

b)

B) Plants

c)

C) Bacteria

d)

D) Animals

11.

A limiting factor on the size of prokaryotic cells is the ability to ______________ nutrients and wastes efficiently throughout (and into and out of) the cell. As a cell increases in size, so do distances within the cell.

a)

transport

b)

digest

c)

store

d)

synthesize

12.

Which of the following is NOT a main region of a cell?

a)

Nucleus

b)

Cytoplasm

c)

Plasma membrane

d)

Cell wall

13.

Functions of the cell membrane include: Regulates materials moving in and out of the cell, ______________, boundary, and attachment.

a)

identification

b)

digestion

c)

photosynthesis

d)

respiration

14.

The plasma membrane defines the extent of the cell.

a)

True

b)

False

15.

Proteins make up what percentage of the membrane mass?

a)

50%

b)

10%

c)

80%

d)

25%

16.

What is the main difference between eukaryotic and prokaryotic cells regarding organelles?

a)

Eukaryotic cells have membrane bound organelles, while prokaryotic cells do not.

b)

Prokaryotic cells have more organelles than eukaryotic cells.

c)

Both have the same types of organelles.

d)

Eukaryotic cells lack any organelles.

17.

What does the 'Fluid Mosaic' model describe about the cell membrane?

a)

Molecules are fixed in place

b)

Molecules move freely within the membrane

c)

The membrane is made only of proteins

d)

The membrane is solid

18.

What does the 'Mosaic' part of the Fluid Mosaic model refer to?

a)

The membrane is made of only one type of molecule

b)

Diversity of protein in the membrane

c)

The membrane is a solid structure

d)

The membrane is made of carbohydrates

19.

Fill in the blank: Membranes are ______ permeable, allowing some substances to cross more easily than others.

a)

selectively

b)

completely

c)

impermeably

d)

randomly

20.

Which of the following is NOT a function of the cell membrane?

a)

Acts as a barrier against substances outside the cell

b)

Allows all substances to pass freely

c)

Has receptors for cellular communication

d)

Blocks passage of some substances altogether

21.

Name the three components of cytoplasm mentioned in the worksheet.

a)

Cytosol, Organelles, Inclusion (won't cover this)

b)

Nucleus, Mitochondria, Ribosome

c)

Cell wall, Plasma membrane, Nucleolus

d)

Lysosome, Golgi apparatus, Endoplasmic reticulum

22.

What is the function of ribosomes in the cell?

a)

To make lipids

b)

To make proteins (protein synthesis)

c)

To store genetic material

d)

To break down waste

23.

Fill in the blank: Free ribosomes float in the ______.

a)

cytosol

b)

nucleus

c)

mitochondria

d)

cell membrane

24.

Which type of endoplasmic reticulum has ribosomes attached to the outside?

a)

Smooth ER

b)

Rough ER

c)

Both

d)

Neither

25.

List one function of the Rough ER.

a)

Makes membranes / Helps synthesis proteins / Packages the proteins into transport vesicles (any one)

b)

Stores genetic information

c)

Produces energy through cellular respiration

d)

Synthesizes lipids

26.

What are the functions of the Smooth ER?

a)

Produces lipids

b)

Detoxifying in liver cells

c)

Stores calcium

d)

Produces proteins

27.

What is the main function of the Golgi Apparatus?

a)

Produces energy

b)

Modifies & processes the proteins produced by the rough ER

c)

Stores calcium

d)

Digests macromolecules

28.

The mitochondria is considered to be the ______ of the cell.

a)

powerhouse

b)

nucleus

c)

membrane

d)

factory

29.

What is the main function of mitochondria?

a)

Packing and shipping

b)

Generates most of the cell's energy (ATP) via cellular respiration

c)

Digests macromolecules

d)

Produces lipids

30.

The inner membrane of the mitochondria folds in forming shelf-like structures called ______.

a)

cristae

b)

thylakoids

c)

grana

d)

cisternae

31.

True or False: Mitochondria contain their own DNA called maternal DNA (nuclear DNA).

a)

True

b)

False

32.

What is the function of lysosomes?

a)

Produces energy

b)

Digests macromolecules including defunct organelles

c)

Stores calcium

d)

Modifies proteins

33.

Label the parts of the mitochondria shown in the diagram:

a)

Outer membrane, Inner membrane, Cristae, Matrix, Space between membranes

b)

Nucleus, Cytoplasm, Ribosome, Golgi apparatus, Lysosome

c)

Cell wall, Chloroplast, Vacuole, Nucleolus, Centriole

d)

Plasma membrane, Endoplasmic reticulum, Peroxisome, Microtubule, Flagellum

34.

What is the function of the cytoskeleton in a cell?

a)

Produces energy

b)

Creates the infrastructure within the cell, provides mechanical support, maintains cell shape, and provides machinery for cellular movement

c)

Stores genetic information

d)

Synthesizes proteins

35.

Name the three types of cytoskeletal elements mentioned in the worksheet.

a)

Microtubules, Micro filaments, Intermediate filaments

b)

Actin, Myosin, Tubulin

c)

Collagen, Elastin, Keratin

d)

Desmosomes, Hemidesmosomes, Gap junctions

36.

Special microtubules for locomotion are called ______ and ______. (Fill in the blanks)

a)

Cilia and Flagella

b)

Ribosomes and Lysosomes

c)

Mitochondria and Plastids

d)

Centrioles and Chromosomes

37.

What is the central core of the cell called?

a)

Mitochondria

b)

Nucleus

c)

Ribosome

d)

Cytoplasm

38.

List the three parts of the nucleus as described in the worksheet. (Fill in the blanks)

a)

Nuclear envelope, Nucleoli, Chromatins

b)

Cell membrane, Cytoplasm, Mitochondria

c)

Ribosomes, Lysosomes, Golgi apparatus

d)

Centrioles, Microtubules, Peroxisomes

39.

How many chromosomes are in a typical human cell?

a)

46 (but 23 pairs)

b)

23 (but 46 pairs)

c)

44 (but 22 pairs)

d)

48 (but 24 pairs)

40.

Review: Solute + Solvent = ______ (Fill in the blank)

a)

solution

b)

mixture

c)

compound

d)

element

41.

Label the following parts in the diagram of the nucleus:

a)

Chromatin fiber, Nuclear envelope, Nucleolus, Nuclear pore

b)

Mitochondria, Cell wall, Ribosome, Cytoplasm

c)

Golgi apparatus, Lysosome, Endoplasmic reticulum, Vacuole

d)

Plasma membrane, Chloroplast, Centriole, Peroxisome

42.

What is diffusion?

a)

The movement of a substance from a region of low concentration to high concentration

b)

The movement of a substance from a region of high concentration to a region of low concentration by random molecular motion

c)

The movement of water only

d)

The movement of molecules using energy

43.

Diffusion requires energy.

a)

True

b)

False

44.

Fill in the blank: The rate of diffusion is dependent upon temperature, initial concentration of the substance, distance of diffusion, and other factors including size, weight, and ________.

a)

barriers

b)

color

c)

taste

d)

magnetism

45.

Which of the following is NOT a factor that affects the rate of diffusion?

a)

Temperature

b)

Initial concentration of the substance

c)

Color of the substance

d)

Distance of diffusion

46.

What is a concentration gradient?

a)

Movement from low concentration to high concentration

b)

Movement from high (no energy) concentration to low concentration

c)

Movement of water only

d)

Movement of solids only

47.

Osmosis is the diffusion of ________.

a)

water

b)

salt

c)

sugar

d)

oxygen

48.

Osmosis is a special case of diffusion.

a)

True

b)

False

49.

Diffusion through a selectively permeable barrier allows only certain molecules to pass based on their size, weight, and other factors.

a)

True

b)

False

50.

Osmosis is the diffusion of _______ in response to a __________ gradient (of solute) across a ______________ ________________ membrane.

a)

water, concentration, selectively, permeable

b)

salt, pressure, non-selective, impermeable

c)

glucose, temperature, fully, permeable

d)

ions, voltage, partially, permeable

51.

Tonicity: The distribution of ________________.

a)

water

b)

proteins

c)

glucose

d)

ions

52.

Tonicity is the relative ____________ concentration of a solution.

a)

solute

b)

water

c)

pressure

d)

temperature

53.

Tonicity is used in ________________ the solute concentration of two solutions.

a)

comparing

b)

mixing

c)

diluting

d)

measuring

54.

Hypertonic: Hyper = ________ Tonic = Solute. Solution with the ___________ solute concentration.

a)

more, higher

b)

less, lower

c)

equal, same

d)

none, lowest

55.

Hypotonic: Hypo = _________ Tonic = Solute. Solution with the ___________ solute concentration.

a)

less, lower

b)

more, higher

c)

equal, same

d)

none, highest

56.

Isotonic: Iso = _________ Tonic = Solute. Solutions with __________ solute concentrations.

a)

equal, equal

b)

same, different

c)

different, same

d)

high, low

57.

The tonicity of the cell relative to its environment is:

a)

hypotonic

b)

isotonic

c)

hypertonic

d)

neutral

58.

The tonicity of the environment relative to the cell is:

a)

isotonic

b)

hypertonic

c)

hypotonic

d)

hypotonic and hypertonic

59.

Indicate the net direction of water movement across the cell membrane using an arrow.

a)

→ (from outside to inside the cell)

b)

← (from inside to outside the cell)

c)

↑ (upward across the membrane)

d)

↓ (downward across the membrane)

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