Quiz about Unit 2: Cells - Review

Question 1

What does "unicellular" mean?

Accepted Answer

Composed of one cell

Answer

Composed of many cells

Answer

Specialized structure within the cell

Answer

Composed of tissues and organs

Question 2

What is the definition of "multicellular"?

Accepted Answer

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

Answer

Composed of one cell

Answer

Specialized structure within the cell

Answer

Composed of a single organ system

Question 3

What is an "organelle"?

Accepted Answer

Specialized structure within the cell that works with other organelles to help the cell function

Answer

A single cell organism

Answer

Composed of many cells

Answer

A type of tissue

Question 4

Which of the following is a principle of cell theory?

Accepted Answer

All living things are made of cells.

Answer

Cells can spontaneously generate.

Answer

Cells are not the basic unit of life.

Answer

Cells do not come from other cells.

Question 5

What is a characteristic of prokaryotic cells?

Accepted Answer

They are unicellular.

Answer

They have a nucleus.

Answer

They have membrane-bound organelles.

Answer

They divide by mitosis.

Question 6

Which of the following is true about eukaryotic cells?

Accepted Answer

They have membrane-bound organelles.

Answer

They lack a nucleus.

Answer

They divide by binary fission.

Answer

They are always unicellular.

Question 7

Which structures are found in plant cells but not in animal cells?

Accepted Answer

Cell walls

Answer

Centrioles

Answer

Lysosomes

Answer

Cilia

Question 8

What is the function of the cell (plasma) membrane?

Accepted Answer

Controls what goes in and out

Answer

Makes rRNA

Answer

Holds everything in place

Answer

Protects the DNA

Question 9

Which organelle gives the cell shape and structural support for animal cells?

Accepted Answer

Cytoskeleton

Answer

Nucleolus

Answer

Ribosomes

Answer

Cytoplasm

Question 10

What is the role of ribosomes in a cell?

Accepted Answer

Make proteins

Answer

Protect the DNA

Answer

Control what goes in and out

Answer

Hold everything in place

Question 11

What is the primary function of the Rough ER?

Accepted Answer

Makes proteins

Answer

Makes lipids

Answer

Transports proteins

Answer

Breaks down dead materials

Question 12

Which organelle is responsible for making lipids?

Accepted Answer

Smooth ER

Answer

Rough ER

Answer

Golgi apparatus

Answer

Lysosome

Question 13

What is the function of the Golgi apparatus?

Accepted Answer

Processes, sorts, and ships proteins

Answer

Helps divide chromosomes

Answer

Protects and maintains shape of plant cells

Answer

Where photosynthesis occurs

Question 14

Which organelle is involved in breaking down dead materials?

Accepted Answer

Lysosome

Answer

Vacuole

Answer

Mitochondria

Answer

Chloroplast

Question 15

What is the role of mitochondria in the cell?

Accepted Answer

Where cellular respiration occurs

Answer

Storage

Answer

Move entire cell

Answer

Transports proteins

Question 16

Where does photosynthesis occur in plant cells?

Accepted Answer

Chloroplast

Answer

Cell wall

Answer

Centrioles

Answer

Cilia

Question 17

What role do phospholipids play in the structure of the phospholipid bilayer?

Accepted Answer

They make up the bilayer and give the membrane selective permeability.

Answer

They provide energy for the cell.

Answer

They store genetic information.

Answer

They transport oxygen.

Question 18

How do carbohydrates contribute to the phospholipid bilayer?

Accepted Answer

They give the membrane structure.

Answer

They provide energy for cellular respiration.

Answer

They transport proteins.

Answer

They break down waste.

Question 19

What is the function of proteins in the phospholipid bilayer?

Accepted Answer

They are embedded to aid with transport.

Answer

They store energy.

Answer

They replicate DNA.

Answer

They produce lipids.

Question 20

Which organelle is responsible for protecting DNA in the cell?

Accepted Answer

Nucleus

Answer

Ribosome

Answer

Golgi apparatus

Answer

Vesicle

Question 21

What is the role of the Golgi apparatus in protein processing?

Accepted Answer

It packages and sorts proteins to be shipped out.

Answer

It makes proteins.

Answer

It breaks down proteins.

Answer

It stores proteins.

Question 22

Which type of cell contains membrane-bound organelles?

Accepted Answer

Eukaryotic

Answer

Prokaryotic

Answer

Bacterial

Answer

Viral

Question 23

What is the consequence of the absence of mitochondria in a eukaryotic cell?

Accepted Answer

Decreased energy production

Answer

Increased energy production

Answer

Enhanced protein synthesis

Answer

Improved cell division

Question 24

Which of the following is a characteristic of prokaryotic cells?

Accepted Answer

Absence of a nucleus

Answer

Presence of a nucleus

Answer

Presence of chloroplasts

Answer

Absence of ribosomes

Question 25

How can you identify a plant cell?

Accepted Answer

Presence of a cell wall

Answer

Absence of a cell membrane

Answer

Presence of lysosomes

Answer

Absence of chloroplasts

Question 26

What is the need of an organism to stay stable by regulating internal conditions called?

Accepted Answer

Homeostasis

Answer

Solute

Answer

Solvent

Answer

Concentration

Question 27

What term describes what gets dissolved in a solution?

Accepted Answer

Solute

Answer

Solvent

Answer

Concentration

Answer

Homeostasis

Question 28

What is the term for what does the dissolving in a solution?

Accepted Answer

Solvent

Answer

Solute

Answer

Solution

Answer

Concentration

Question 29

What is a uniform mixture of two or more substances called?

Accepted Answer

Solution

Answer

Solvent

Answer

Solute

Answer

Concentration

Question 30

What term describes the amount of solute dissolved in a solvent?

Accepted Answer

Concentration

Answer

Homeostasis

Answer

Solvent

Answer

Solution

Question 31

What is a concentration gradient?

Accepted Answer

A difference in concentration of a substance from one location to another

Answer

A measure of temperature change

Answer

A type of cell division

Answer

A form of energy transfer

Question 32

What does phagocytosis refer to? (HONORS)

Accepted Answer

Cell "eating"; when the cell engulfs solids into a vesicle and breaks them down

Answer

Cell "drinking"; when the cell engulfs liquids

Answer

A process of cell division

Answer

A method of photosynthesis

Question 33

What is pinocytosis? (HONORS)

Accepted Answer

Cell "drinking"; when the cell engulfs liquids into a vesicle and breaks them down

Answer

Cell "eating"; when the cell engulfs solids

Answer

A type of cell respiration

Answer

A form of energy production

Question 34

What is the main characteristic of a static equilibrium in homeostasis?

Accepted Answer

It is constant and unchanging.

Answer

It fluctuates above and below a constant state.

Answer

It has a high rate of gain.

Answer

It is always in a state of loss.

Question 35

How does a dynamic equilibrium maintain balance in homeostasis?

Accepted Answer

By fluctuating above and below the constant state, balancing loss and gain.

Answer

By remaining constant and unchanging.

Answer

By increasing the rate of gain only.

Answer

By decreasing the rate of loss only.

Question 36

What role do organisms play in maintaining homeostasis in response to stimuli?

Accepted Answer

They take in stimuli, communicate messages, and initiate a response.

Answer

They ignore external stimuli.

Answer

They only respond to internal stimuli.

Answer

They maintain a constant external environment.

Question 37

What is a positive feedback loop?

Accepted Answer

The output of a system intensifies the response, leading to amplification.

Answer

The output of a system causes a counter response to return to a set point, leading to stabilization.

Answer

The output of a system decreases the response, leading to reduction.

Answer

The output of a system has no effect on the response.

Question 38

Which of the following is an example of a positive feedback loop?

Accepted Answer

Hormones released in human childbirth

Answer

Thermoregulation

Answer

Osmoregulation

Answer

Blood sugar regulation

Question 39

What is a negative feedback loop?

Accepted Answer

The output of a system causes a counter response to return to a set point, leading to stabilization.

Answer

The output of a system intensifies the response, leading to amplification.

Answer

The output of a system increases the response, leading to escalation.

Answer

The output of a system has no effect on the response.

Question 40

Which of the following is an example of a negative feedback loop?

Accepted Answer

Thermoregulation

Answer

Fruit ripening

Answer

Hormones released in human childbirth

Question 41

What role does the cell membrane play in maintaining homeostasis?

Accepted Answer

It selectively allows substances to pass, maintaining stable conditions.

Answer

It allows all substances to pass freely.

Answer

It prevents all substances from entering the cell.

Answer

It only allows large molecules to pass.

Question 42

Which substances can easily pass through the cell membrane?

Accepted Answer

Small, nonpolar, hydrophobic substances

Answer

Large, polar molecules

Answer

Large, hydrophilic molecules

Answer

Polar molecules

Question 43

What is the difference between passive and active transport?

Accepted Answer

Passive transport requires no extra energy, active transport requires extra energy.

Answer

Passive transport requires energy, active transport does not.

Answer

Passive transport moves substances from low to high concentration, active transport moves from high to low.

Answer

Passive transport moves substances against the concentration gradient, active transport moves with it.

Question 44

What is the process called where molecules move from an area of high concentration to an area of low concentration without the use of energy?

Accepted Answer

Simple diffusion

Answer

Facilitated diffusion

Answer

Osmosis

Answer

Endocytosis

Question 45

Which type of transport uses a protein channel to help move molecules across the cell membrane?

Accepted Answer

Facilitated diffusion

Answer

Simple diffusion

Answer

Osmosis

Answer

Exocytosis

Question 46

What is the process called that involves the diffusion of water from high to low concentration?

Accepted Answer

Osmosis

Answer

Endocytosis

Answer

Exocytosis

Answer

Molecular pumps

Question 47

Which transport method uses energy to pump molecules through a protein channel from low to high concentration?

Accepted Answer

Molecular pumps

Answer

Simple diffusion

Answer

Facilitated diffusion

Answer

Osmosis

Question 48

What is the process called where cells use energy and vesicles to engulf particles into the cell?

Accepted Answer

Endocytosis

Answer

Exocytosis

Answer

Osmosis

Answer

Simple diffusion

Question 49

Which transport method involves the use of vesicles to move particles out of the cell?

Accepted Answer

Exocytosis

Answer

Endocytosis

Answer

Osmosis

Answer

Facilitated diffusion

Question 50

What happens to a cell in a hypertonic solution?

Accepted Answer

Cell shrivels

Answer

Cell swells

Answer

Cell stays the same

Answer

Cell bursts

Question 51

In which type of solution does a cell swell?

Accepted Answer

Hypotonic

Answer

Hypertonic

Answer

Isotonic

Answer

Supersonic

Question 52

What is the effect of an isotonic solution on a cell?

Accepted Answer

Cell stays the same

Answer

Cell shrivels

Answer

Cell swells

Answer

Cell bursts

Question 53

What are the two main types of cell transport?

Accepted Answer

Active and Passive

Answer

Hypertonic and Hypotonic

Answer

Osmosis and Diffusion

Answer

Isotonic and Hypertonic

Question 54

Which type of solution has a higher concentration of solutes outside the cell than inside?

Accepted Answer

Hypertonic

Answer

Hypotonic

Answer

Isotonic

Answer

Passive

Question 55

What type of cell transport requires energy to move substances across the cell membrane?

Accepted Answer

Active transport

Answer

Passive transport

Answer

Osmosis

Answer

Diffusion

Question 56

What is the process called that creates special structures and functions in cells?

Accepted Answer

Differentiation

Answer

Stem cell formation

Answer

Organogenesis

Answer

Cell cycle

Question 57

What are undifferentiated cells that can become specialized called?

Accepted Answer

Stem cells

Answer

Gastrula

Answer

Organogenesis

Answer

Differentiation

Question 58

What is the repeated pattern of growth, DNA duplication, and cell division in eukaryotic cells called?

Accepted Answer

Cell cycle

Answer

Differentiation

Answer

Stem cell formation

Answer

Organogenesis

Question 59

What is a chromosome?

Accepted Answer

One long continuous thread of DNA with genes and regulatory information

Answer

A section of DNA with instructions for making a protein

Answer

Two identical chromatids

Answer

Ends of the DNA molecule

Question 60

What is a gene?

Accepted Answer

A section of DNA with instructions for making a protein

Answer

Region of the condensed chromosomes that looks pinched

Answer

Uncontrolled cell division

Answer

Two identical chromatids

Question 61

What are sister chromatids?

Accepted Answer

Two identical chromatids (halves of a duplicated chromosome)

Answer

Ends of the DNA molecule

Answer

Region of the condensed chromosomes that looks pinched

Answer

Uncontrolled cell division

Question 62

What is the centromere?

Accepted Answer

Region of the condensed chromosomes that looks pinched

Answer

A section of DNA with instructions for making a protein

Answer

Ends of the DNA molecule

Answer

Uncontrolled cell division

Question 63

What is a telomere?

Accepted Answer

Ends of the DNA molecule

Answer

One long continuous thread of DNA with genes and regulatory information

Answer

Two identical chromatids

Answer

Region of the condensed chromosomes that looks pinched

Question 64

What is cancer?

Accepted Answer

Uncontrolled cell division

Answer

A section of DNA with instructions for making a protein

Answer

Two identical chromatids

Answer

Ends of the DNA molecule

Unit 2: Cells - Review

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