Quiz about Cell Theory: Basic Principles and Cell Types

Question 1

Which statement is one of the three main tenets of cell theory?

Accepted Answer

All living things are made of cells.

Answer

All cells contain chloroplasts.

Answer

Cells are visible without microscopes.

Answer

Only animals have cells.

Question 2

According to cell theory, what is the basic unit of life?

Accepted Answer

Cells

Answer

Organs

Answer

Organ systems

Answer

Tissues

Question 3

Cell theory states that new cells originate from which source?

Accepted Answer

Other cells

Answer

Chemical reactions in air

Answer

Minerals in soil

Answer

Proteins in food

Question 4

Which description best matches a unicellular organism?

Accepted Answer

Composed of one cell

Answer

Composed of many cells organized into tissues and organs

Answer

Composed only of organ systems

Answer

Composed of several tissues but no organs

Question 5

Multicellular organisms are defined as:

Accepted Answer

Composed of many cells that may organize into tissues, organs, and organ systems

Answer

Made of a single cell with many nuclei

Answer

Lacking any cellular organization

Answer

Made only of tissues but not organs

Question 6

Cells are very diverse. Which conclusion follows from this statement?

Accepted Answer

Cells can vary in structure while still performing life processes.

Answer

All cells have identical structures and functions.

Answer

Only animal cells are diverse.

Answer

Diversity prevents cells from performing life processes.

Question 7

What are the two broad types of cells introduced in this section?

Accepted Answer

Prokaryotic and eukaryotic

Answer

Animal and plant

Answer

Bacterial and fungal

Answer

Autotrophic and heterotrophic

Question 8

Which characteristic defines a prokaryotic cell?

Accepted Answer

Lack of a nucleus and other membrane-bound organelles

Answer

Presence of a membrane-bound nucleus

Answer

Containment of chloroplasts only

Answer

Ability to form organs and organ systems

Question 9

Which statement aligns with the idea that all living things are made of cells?

Accepted Answer

Both unicellular amoebas and multicellular dogs are cellular life forms.

Answer

Nonliving objects are also made of cells.

Answer

Only animals are made of cells, not plants.

Answer

Viruses are cells.

Question 10

A student claims an organism is multicellular but lacks tissues and organs. Based on the section, how should this claim be evaluated?

Accepted Answer

It is partially supported: multicellular organisms are made of many cells and may organize into tissues and organs, but organization can vary.

Answer

It is fully supported because multicellular organisms never organize into tissues or organs.

Answer

It is false: multicellular organisms must be single-celled.

Answer

It is irrelevant to cell theory.

Question 11

Which feature distinguishes eukaryotic cells from prokaryotic cells?

Accepted Answer

Presence of a nucleus

Answer

Presence of a cell wall

Answer

Ability to be unicellular

Answer

Use of binary fission

Question 12

Prokaryotic cells typically divide by which process?

Accepted Answer

Binary fission

Answer

Mitosis

Answer

Meiosis

Answer

Budding

Question 13

Which statement correctly describes cell walls according to the comparison chart?

Accepted Answer

Only fungi and plants have cell walls, made of chitin or cellulose

Answer

All cells have cell walls made of peptidoglycan

Answer

Only animals have cell walls made of cellulose

Answer

No cells have cell walls

Question 14

Which group consists entirely of organisms with eukaryotic cells?

Accepted Answer

Animals, plants, fungi, protists

Answer

Bacteria

Answer

Bacteria and fungi

Answer

Viruses and bacteria

Question 15

All cells share which set of features?

Accepted Answer

Cell membrane, ribosomes, cytoplasm, genetic material

Answer

Nucleus, mitochondria, chloroplasts

Answer

Cell wall, vacuole, chloroplasts

Answer

Golgi apparatus, lysosomes, centrosomes

Question 16

A researcher observes a unicellular organism lacking membrane-bound organelles. Based on the table, which classification is most appropriate?

Accepted Answer

Prokaryotic

Answer

Eukaryotic

Answer

Plant cell

Answer

Fungal cell

Question 17

Consider the note that eukaryotes can be uni- or multicellular. Which inference is best supported?

Accepted Answer

Some eukaryotes exist as single cells while others form multicellular organisms

Answer

All unicellular organisms are prokaryotes

Answer

Only plants are multicellular eukaryotes

Answer

Prokaryotes are always multicellular

Question 18

Which statement best defines organelles in eukaryotic cells?

Accepted Answer

Specialized structures within the cell that work together to help the cell function

Answer

Membrane-bound structures outside the cell that protect it

Answer

Random clusters of proteins that form only during cell division

Answer

Any structure that contains DNA, regardless of location

Question 19

Which distinction is emphasized between prokaryotic and eukaryotic cells in this section?

Accepted Answer

Only eukaryotic cells have membrane-bound organelles

Answer

Only prokaryotes have nuclei

Answer

Prokaryotes are multicellular, eukaryotes are unicellular

Answer

Eukaryotes lack any internal structures

Question 20

The section notes that eukaryotes include several groups. Which focus will this unit primarily take when discussing organelles?

Accepted Answer

Plants and animals

Answer

Animals and fungi

Answer

Plants and protists

Answer

Protists and fungi

Question 21

Which statement best describes the location of the cell (plasma) membrane?

Accepted Answer

It surrounds the outside of all cells

Answer

It surrounds only animal cells

Answer

It lies only inside the nucleus

Answer

It is found only in prokaryotes

Question 22

What is the basic structural arrangement of the cell membrane?

Accepted Answer

A double layer known as the phospholipid bilayer

Answer

A single layer of proteins

Answer

A triple layer of carbohydrates

Answer

A rigid cellulose wall

Question 23

What is the primary job of the cell membrane?

Accepted Answer

Controlling what goes in and out of the cell

Answer

Producing ATP for the cell

Answer

Storing genetic information

Answer

Carrying out photosynthesis

Question 24

In the phospholipid molecule, which part is hydrophilic?

Accepted Answer

The head

Answer

The tails

Answer

Both head and tails

Answer

Neither head nor tails

Question 25

Which statement correctly pairs polarity with water interaction in the membrane?

Accepted Answer

Nonpolar tails dislike water

Answer

Nonpolar tails like water

Answer

Polar heads dislike water

Answer

Both tails and heads like water

Question 26

What does the term phospholipid bilayer specifically indicate about membrane composition?

Accepted Answer

Two layers of fats called phospholipids

Answer

Two layers of sugars

Answer

A mix of proteins and DNA

Answer

Alternating layers of cellulose and protein

Question 27

Which membrane component is primarily embedded for transport across the bilayer?

Accepted Answer

Proteins

Answer

Carbohydrates

Answer

Cholesterol

Answer

DNA

Question 28

Carbohydrates in the membrane are mainly embedded for which purpose?

Accepted Answer

Structural support and recognition

Answer

Energy production

Answer

Lipid synthesis

Answer

DNA replication

Question 29

Why is the cell membrane described by the Fluid Mosaic Model?

Accepted Answer

It is composed of many parts that move around freely

Answer

It is a solid, fixed structure

Answer

It is made only of carbohydrates

Answer

It contains no proteins

Question 30

A small water-soluble molecule needs to cross the membrane. Based on the model, which route is most plausible?

Accepted Answer

Through a channel protein embedded in the bilayer

Answer

Directly through hydrophobic tails without assistance

Answer

By binding to membrane DNA

Answer

By passing only through carbohydrate chains

Question 31

Which combination best matches membrane regions with their chemical nature?

Accepted Answer

Heads: polar; Tails: nonpolar

Answer

Heads: nonpolar; Tails: polar

Answer

Heads: hydrophobic; Tails: hydrophilic

Answer

Heads and tails both polar

Question 32

Which statement integrates structure and function of the membrane most accurately?

Accepted Answer

A flexible phospholipid bilayer with embedded proteins controls selective transport

Answer

A rigid bilayer prevents any molecular movement

Answer

Carbohydrates form channels that pump ions

Answer

Cholesterol stores genetic information for transport

Question 33

Which statement best describes the structure of the cytoskeleton?

Accepted Answer

Network of threadlike fibers made of proteins

Answer

Double membrane with pores

Answer

Jelly-like substance mainly water

Answer

Rigid cellulose wall

Question 34

What is a primary job of the cytoskeleton in cells?

Accepted Answer

Give the cell shape

Answer

Store genetic information

Answer

Carry out photosynthesis

Answer

Package proteins for export

Question 35

Why is the cytoskeleton especially important for animal cells?

Accepted Answer

They do not have a cell wall

Answer

They lack mitochondria

Answer

They cannot make proteins

Answer

They lack cytoplasm

Question 36

Besides shaping the cell, which additional function is attributed to the cytoskeleton?

Accepted Answer

Moving organelles around

Answer

Replicating DNA

Answer

Producing ATP directly from sunlight

Answer

Regulating membrane transport channels

Question 37

Which is the main job of the cytoplasm?

Accepted Answer

Holds everything in place

Answer

Synthesizes proteins

Answer

Controls cell division timing

Answer

Exports waste through the membrane

Question 38

A student claims the cytoskeleton is usually easy to see in simple cell diagrams. Based on the material, how should you respond?

Accepted Answer

Disagree; it is usually not pictured in a cell diagram

Answer

Agree; it is typically bold and labeled

Answer

Agree; it is shown as a thick outer layer

Answer

Disagree; it is always shown as the nucleus

Question 39

Which cellular structure contains the genetic material (DNA) and is surrounded by a membrane with pores that control what goes in and out?

Accepted Answer

Nucleus

Answer

Nucleolus

Answer

Ribosome

Answer

Mitochondrion

Question 40

The nuclear envelope is best described as:

Accepted Answer

A double membrane with pores regulating transport

Answer

A single solid barrier with no openings

Answer

A protein-only shell

Answer

A carbohydrate coat that stores energy

Question 41

Where is the nucleolus located within the cell?

Accepted Answer

Inside of the nucleus

Answer

In the cytoplasm

Answer

On the rough ER

Answer

Embedded in the plasma membrane

Question 42

What does the nucleolus make that ultimately forms ribosomes?

Accepted Answer

rRNA

Answer

tRNA

Answer

mRNA

Answer

DNA

Question 43

Which statement best distinguishes the nucleolus from the nucleus?

Accepted Answer

The nucleolus makes rRNA while the nucleus houses and protects DNA

Answer

The nucleolus contains DNA while the nucleus makes rRNA

Answer

Both structures synthesize proteins directly

Answer

The nucleus floats freely in the cytoplasm while the nucleolus is membrane-bound

Question 44

Which components make up ribosomes according to the material?

Accepted Answer

Proteins and rRNA

Answer

Proteins and DNA

Answer

Lipids and rRNA

Answer

Carbohydrates and proteins

Question 45

Where are ribosomes found in cells based on the lesson?

Accepted Answer

On the rough endoplasmic reticulum and floating in the cytoplasm

Answer

Only inside the nucleus

Answer

Exclusively in mitochondria

Answer

Only attached to the plasma membrane

Question 46

What is the main job of ribosomes?

Accepted Answer

Make proteins

Answer

Replicate DNA

Answer

Break down waste

Answer

Store calcium ions

Question 47

A cell lacks a nucleus but still contains ribosomes. Based on the images and notes, which cell type is this most likely to represent?

Accepted Answer

Bacterial cell (prokaryote)

Answer

Plant cell

Answer

Animal cell

Answer

Fungal cell

Question 48

If nuclear pores were blocked, which process would be most directly disrupted?

Accepted Answer

Transport of materials into and out of the nucleus

Answer

Protein folding in the ER

Answer

ATP production in mitochondria

Answer

Photosynthesis in chloroplasts

Question 49

Which feature best distinguishes Rough ER from Smooth ER?

Accepted Answer

Presence of ribosomes on its surface

Answer

Attachment to the nucleus

Answer

Production of ATP

Answer

Storage of genetic information

Question 50

What is the primary job of the Rough Endoplasmic Reticulum?

Accepted Answer

Making and packaging proteins for secretion

Answer

Synthesizing DNA

Answer

Generating glucose

Answer

Detoxifying poisons

Question 51

Where is the Rough ER typically located relative to another organelle?

Accepted Answer

Hugging the nucleus

Answer

Far from the nucleus

Answer

Inside the mitochondrion

Answer

Embedded in the plasma membrane

Question 52

Which statement correctly describes the structure of Smooth ER?

Accepted Answer

It lacks ribosomes and is attached to Rough ER

Answer

It has ribosomes attached and forms stacked cisternae

Answer

It is a folded membrane receiving vesicles

Answer

It is a circular organelle containing DNA

Question 53

The Smooth ER primarily synthesizes which type of molecule?

Accepted Answer

Lipids (membrane)

Answer

Proteins

Answer

Carbohydrates

Answer

Nucleic acids

Question 54

Which organelle receives vesicles of protein from the ER and then processes, sorts, and ships them?

Accepted Answer

Golgi apparatus

Answer

Lysosome

Answer

Mitochondrion

Answer

Nucleus

Question 55

In the context of the cell, vesicles are best described as:

Accepted Answer

Mini-carts that transport proteins around the cell

Answer

Membrane channels that allow ions to pass

Answer

Sites of DNA replication

Answer

Energy factories that produce ATP

Question 56

A cell specialized for exporting enzymes would need which pair of organelles to be especially active together?

Accepted Answer

Rough ER and Golgi apparatus

Answer

Mitochondria and chloroplasts

Answer

Smooth ER and lysosomes

Answer

Nucleus and vacuole

Question 57

If a mutation removes ribosomes from an otherwise normal Rough ER, which immediate cellular function would be most impaired?

Accepted Answer

Protein synthesis for secretion

Answer

Lipid synthesis for membranes

Answer

ATP production

Answer

DNA transcription

Question 58

A drug inhibits lipid production in a cell. Which organelle is the most direct target of this drug?

Accepted Answer

Smooth ER

Answer

Rough ER

Answer

Golgi apparatus

Answer

Nucleus

Question 59

Which structural feature allows the Golgi apparatus to modify and sort proteins effectively?

Accepted Answer

Folded membrane organization

Answer

DNA loops for coding proteins

Answer

Attached ribosomes

Answer

Double-membrane with its own genome

Question 60

Which organelle is labeled as present in animal cells only and contains enzymes for breaking down dead material?

Accepted Answer

Lysosome

Answer

Vacuole

Answer

Centriole

Answer

Nucleus

Question 61

What is a primary job of lysosomes in animal cells?

Accepted Answer

Break down dead stuff such as food, bacteria, and old parts of the cell

Answer

Protein synthesis

Answer

Store water and nutrients

Answer

Generate ATP

Question 62

The term apoptosis on the lysosome slide refers to which process?

Accepted Answer

Programmed cell death

Answer

Cell respiration

Answer

Cell differentiation

Answer

Active transport

Question 63

Which statement best compares vacuoles in animal and plant cells?

Accepted Answer

Animal cells have small and numerous vacuoles; plant cells have one large central vacuole

Answer

Both have one large central vacuole

Answer

Only plant cells have vacuoles

Answer

Only animal cells have vacuoles

Question 64

What is the main job of vacuoles according to the material?

Accepted Answer

Storage of water, nutrients, and waste

Answer

Protein folding

Answer

DNA replication

Answer

Breaking down bacteria

Cell Theory: Basic Principles and Cell Types

Create a free account and access millions of resources

Similar Resources on Wayground

Popular Resources on Wayground

Discover more resources for Science