Question 1

Cilia and flagella

Accepted Answer

A)  are found only in cells that are actively moving. 
B)  are found only in sex cells and unicellular organisms. 
C)  use motor proteins to induce movement. 
D)  may also function as receptor sites for certain hormones. 
E)  are found only in one-celled organisms. 
A)  are found only in cells that are actively moving. 
B)  are found only in sex cells and unicellular organisms. 
C)  use motor proteins to induce movement. 
D)  may also function as receptor sites for certain hormones. 
E)  are found only in one-celled organisms.

Question 2

Which of the following is NOT a part of the cell theory?

Accepted Answer

A)  All organisms are cellular. 
B)  Cells are the structural and functional units of life. 
C)  All cells come from preexisting cells. 
D)  All cells are approximately the same size. 
E)  All cells have inheritable material. 
A)  All organisms are cellular. 
B)  Cells are the structural and functional units of life. 
C)  All cells come from preexisting cells. 
D)  All cells are approximately the same size. 
E)  All cells have inheritable material.

Question 3

If you could stick a microscopic pin into the center of a bacterium, what would the order of the structures you would encounter from the outside in?

Accepted Answer

A)  capsule, cell wall, plasma membrane, cytoplasm 
B)  cell wall, capsule, plasma membrane, cytoplasm 
C)  plasma membrane, cell wall, capsule, cytoplasm 
D)  cell wall, plasma membrane, capsule, cytoplasm 
E)  capsule, plasma membrane, cell wall, cytoplasm 
A)  capsule, cell wall, plasma membrane, cytoplasm 
B)  cell wall, capsule, plasma membrane, cytoplasm 
C)  plasma membrane, cell wall, capsule, cytoplasm 
D)  cell wall, plasma membrane, capsule, cytoplasm 
E)  capsule, plasma membrane, cell wall, cytoplasm

Question 4

Which of the following is true about bacteria?

Accepted Answer

A)  some bacteria have nuclei 
B)  some bacteria have lipid bilayers enclosing their DNA 
C)  some bacteria do not have DNA 
D)  some bacteria do not have a cytoplasm 
E)  some bacteria lack a plasma membrane 
A)  some bacteria have nuclei 
B)  some bacteria have lipid bilayers enclosing their DNA 
C)  some bacteria do not have DNA 
D)  some bacteria do not have a cytoplasm 
E)  some bacteria lack a plasma membrane

Question 5

A pathogenic Escherichia coli strain would cause which of the following problems except one. Which of the following is the exception?

Accepted Answer

A)  blindness 
B)  diarrhea 
C)  paralysis 
D)  kidney failure 
E)  heart failure 
A)  blindness 
B)  diarrhea 
C)  paralysis 
D)  kidney failure 
E)  heart failure

Question 6

Which of the following are primarily structures for the packaging of cellular secretions for export from the cell?

Accepted Answer

A)  Golgi bodies 
B)  mitochondria 
C)  lysosomes 
D)  ribosomes 
E)  endoplasmic reticulum 
A)  Golgi bodies 
B)  mitochondria 
C)  lysosomes 
D)  ribosomes 
E)  endoplasmic reticulum

Question 7

In which of the following microscopes are specimens coated with a thin layer of metal?

Accepted Answer

A)  Transmission electron microscopes 
B)  Scanning electron microscopes 
C)  Fluorescence microscopes 
D)  Phase-contrast microscopes 
E)  Compound microscopes 
A)  Transmission electron microscopes 
B)  Scanning electron microscopes 
C)  Fluorescence microscopes 
D)  Phase-contrast microscopes 
E)  Compound microscopes

Question 8

In nature, a biofilm may include

Accepted Answer

A)  bacteria only. 
B)  microscopic algae only. 
C)  fungi only. 
D)  protists only. 
E)  bacteria, microscopic algae, protests, and fungi. 
A)  bacteria only. 
B)  microscopic algae only. 
C)  fungi only. 
D)  protists only. 
E)  bacteria, microscopic algae, protests, and fungi.

Question 9

Why is surface area to volume ratio important for all cells?

Accepted Answer

A)  a cell must be small enough to absorb small molecules and atoms 
B)  if a cell has too small a surface area, the surface to volume ratio will be too large 
C)  if a cell has too large a surface area to volume ratio, the plasma membrane is not sufficient to deal with the increased amount of cytoplasm 
D)  surface area to volume ratios are only important for small cells, like bacteria 
E)  more than one of these is correct 
A)  a cell must be small enough to absorb small molecules and atoms 
B)  if a cell has too small a surface area, the surface to volume ratio will be too large 
C)  if a cell has too large a surface area to volume ratio, the plasma membrane is not sufficient to deal with the increased amount of cytoplasm 
D)  surface area to volume ratios are only important for small cells, like bacteria 
E)  more than one of these is correct

Question 10

Which organelle has enzymes that break down fatty acids, amino acids, and toxins?

Accepted Answer

A)  lysosomes 
B)  peroxisomes 
C)  Golgi bodies 
D)  vacuoles 
E)  rough ER 
A)  lysosomes 
B)  peroxisomes 
C)  Golgi bodies 
D)  vacuoles 
E)  rough ER

Question 11

The type of junction that connects microfilaments inside the cell to the ECM outside the cell are

Accepted Answer

A)  tight junctions. 
B)  adhering junctions. 
C)  gap junctions. 
D)  plasmodesmata. 
E)  both gap junctions and tight junctions. 
A)  tight junctions. 
B)  adhering junctions. 
C)  gap junctions. 
D)  plasmodesmata. 
E)  both gap junctions and tight junctions.

Question 12

Most of the active functions of plasma membranes are carried out by

Accepted Answer

A)  cholesterol. 
B)  proteins. 
C)  hydrophilic heads. 
D)  hydrophobic tails. 
E)  carbohydrates. 
A)  cholesterol. 
B)  proteins. 
C)  hydrophilic heads. 
D)  hydrophobic tails. 
E)  carbohydrates.

Question 13

Which of the following are found in BOTH plant and animal cells?

Accepted Answer

A)  nucleus, Golgi body, and chloroplasts 
B)  Golgi bodies, mitochondria, and endoplasmic reticula 
C)  centrioles, cell wall, and nucleolus 
D)  vacuoles, nucleolus, and lysosomes 
E)  starch grains, chloroplasts, and lysosomes 
A)  nucleus, Golgi body, and chloroplasts 
B)  Golgi bodies, mitochondria, and endoplasmic reticula 
C)  centrioles, cell wall, and nucleolus 
D)  vacuoles, nucleolus, and lysosomes 
E)  starch grains, chloroplasts, and lysosomes

Question 14

Hydrophobic interactions of the tails of phospholipids produce

Accepted Answer

A)  a lipid bilayer. 
B)  hydrolysis of the fatty acids. 
C)  a protein membrane. 
D)  a cytoskeleton. 
E)  a nonpolar membrane. 
A)  a lipid bilayer. 
B)  hydrolysis of the fatty acids. 
C)  a protein membrane. 
D)  a cytoskeleton. 
E)  a nonpolar membrane.

Question 15

A water-soluble hormone (signaling molecule) would most likely bind to which of the following membrane proteins?

Accepted Answer

A)  active transporter 
B)  recognition 
C)  receptor 
D)  passive transporter 
E)  regulator 
A)  active transporter 
B)  recognition 
C)  receptor 
D)  passive transporter 
E)  regulator

Question 16

In which part of a chloroplast does photosynthesis occur?

Accepted Answer

A)  the stroma 
B)  the outermost membrane 
C)  the innermost membrane 
D)  the DNA 
E)  the ribosomes 
A)  the stroma 
B)  the outermost membrane 
C)  the innermost membrane 
D)  the DNA 
E)  the ribosomes

Question 17

To see the structure of DNA, what type of microscope would you use?

Accepted Answer

A)  fluorescence microscope 
B)  phase contrast microscope 
C)  compound microscope 
D)  dissecting microscope 
E)  electron microscope 
A)  fluorescence microscope 
B)  phase contrast microscope 
C)  compound microscope 
D)  dissecting microscope 
E)  electron microscope

Question 18

What role do prokaryotic pili play?

Accepted Answer

A)  they help organize the cytoplasm 
B)  they help stabilize DNA molecules 
C)  they help prokaryotes cling to surfaces 
D)  they help prokaryotes move across surfaces 
E)  more than one of these is correct 
A)  they help organize the cytoplasm 
B)  they help stabilize DNA molecules 
C)  they help prokaryotes cling to surfaces 
D)  they help prokaryotes move across surfaces 
E)  more than one of these is correct

Question 19

An analysis of plasma or nuclear membrane would yield

Accepted Answer

A)  cellulose and chitin. 
B)  suberin and cutin. 
C)  phospholipids and proteins. 
D)  microtubules and microfilaments. 
E)  phospholipids and nucleic acids. 
A)  cellulose and chitin. 
B)  suberin and cutin. 
C)  phospholipids and proteins. 
D)  microtubules and microfilaments. 
E)  phospholipids and nucleic acids.

Question 20

One of the generalizations of the cell theory is that

Accepted Answer

A)  all cells have a nucleus. 
B)  all cells divide by meiosis. 
C)  all living organisms are made up of cells. 
D)  cells arise through spontaneous generation. 
E)  growth is solely the result of cell division. 
A)  all cells have a nucleus. 
B)  all cells divide by meiosis. 
C)  all living organisms are made up of cells. 
D)  cells arise through spontaneous generation. 
E)  growth is solely the result of cell division.

Exam 3: Cell Structure

Cilia and flagella

Which of the following is NOT a part of the cell theory?

If you could stick a microscopic pin into the center of a bacterium, what would the order of the structures you would encounter from the outside in?

Which of the following is true about bacteria?

A pathogenic Escherichia coli strain would cause which of the following problems except one. Which of the following is the exception?

Which of the following are primarily structures for the packaging of cellular secretions for export from the cell?

In which of the following microscopes are specimens coated with a thin layer of metal?

In nature, a biofilm may include

Why is surface area to volume ratio important for all cells?

Which organelle has enzymes that break down fatty acids, amino acids, and toxins?

The type of junction that connects microfilaments inside the cell to the ECM outside the cell are

Most of the active functions of plasma membranes are carried out by

Which of the following are found in BOTH plant and animal cells?

Hydrophobic interactions of the tails of phospholipids produce

A water-soluble hormone (signaling molecule) would most likely bind to which of the following membrane proteins?

In which part of a chloroplast does photosynthesis occur?

To see the structure of DNA, what type of microscope would you use?

What role do prokaryotic pili play?

An analysis of plasma or nuclear membrane would yield

One of the generalizations of the cell theory is that

Invitation to Biology

Molecules of Life

Energy and Metabolism

Capturing and Releasing Energy

Dna Structure and Function

Gene Expression and Control

How Cells Reproduce

Patterns of Inheritance

Biotechnology

Evidence of Evolution

Processes of Evolution

Early Life Forms and the Viruses

Plants and Fungi

Animal Evolution

Population Ecology

Communities and Ecosystems

The Biosphere and Human Effects

Animal Tissues and Organs

How Animals Move

Circulation and Respiration

Immunity

Digestion and Excretion

Neural Control and the Senses

Endocrine Control

Reproduction and Development

Plant Form and Function

Plant Reproduction and Development

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