Question 1

Match the defence cell, labelled a. through d., with the correct characteristics. (Options may be used more than once or not at all.)
a.keratinocytes
b.melanocytes
c.Langerhans cells
d.Granstein cells
-are the most abundant cell type in the skin

Accepted Answer

Keratinocytes are the most abundant cell type in the skin, forming the majority of the epidermal layer and playing a crucial role in the barrier function of the skin.

Question 2

Match the defence cell, labelled a. through d., with the correct characteristics. (Options may be used more than once or not at all.)
a.keratinocytes
b.melanocytes
c.Langerhans cells
d.Granstein cells
-produce the tough protective surface of the skin

Accepted Answer

Keratinocytes are responsible for producing the tough, protective surface of the skin, known as the stratum corneum.

Answer: B
 Melanocytes are responsible for producing the pigment melanin, which gives skin its color and helps protect it from UV damage.

Answer: C
 Langerhans cells are a type of antigen-presenting cell, which helps to activate and direct the immune response.

Answer: D
 Granstein cells are a specialized type of dendritic cell found in the skin, which are believed to play a role in regulating local immune responses.

Question 3

Match the defence cell, labelled a. through d., with the correct characteristics. (Options may be used more than once or not at all.)
a.keratinocytes
b.melanocytes
c.Langerhans cells
d.Granstein cells
-present antigen to helper T cells

Accepted Answer

Langerhans cells are dendritic cells found in the skin that help to present antigens to helper T cells in the immune response.

Question 4

Match the antibody type, labelled a. through e., with the correct characteristic.
a.IgM
b.IgE
c.IgG
d.IgA
e.IgD
-found in secretions of digestive, respiratory, and genitourinary systems, and in milk and tears

Accepted Answer

IgA is primarily found in secretions of the digestive, respiratory, and genitourinary systems, as well as in milk and tears.

Question 5

Indicate the characteristics that apply to bacteria and viruses, labelled a. and b. (Options may be used more than once or not at all.)
a. pertains to bacteria
b. pertains to viruses
-can secrete enzymes or toxins that are injurious to host cells

Accepted Answer

Bacteria have the ability to secrete enzymes or toxins that are injurious to host cells. Viruses cannot secrete their own enzymes or toxins, but they can use host cell enzymes to replicate and cause damage to host cells.

Question 6

Match the antibody type, labelled a. through e., with the correct characteristic.
a.IgM
b.IgE
c.IgG
d.IgA
e.IgD
-function is uncertain

Accepted Answer

The function of IgD is uncertain and not well understood.

Question 7

Match the defence cell, labelled a. through d., with the correct characteristics. (Options may be used more than once or not at all.)
a.keratinocytes
b.melanocytes
c.Langerhans cells
d.Granstein cells
-secrete a substance that absorbs harmful ultraviolet rays

Accepted Answer

Melanocytes are the cells that secrete a substance that absorbs harmful ultraviolet rays, which is melanin. Keratinocytes are responsible for producing the protein keratin, which forms a protective barrier on the skin's surface. Langerhans cells are specialized immune cells located in the skin and play a role in processing and presenting antigens to other immune cells. Granstein cells are also immune cells that produce cytokines and play a role in regulating the immune response.

Question 8

Match the defence cell, labelled a. through d., with the correct characteristics. (Options may be used more than once or not at all.)
a.keratinocytes
b.melanocytes
c.Langerhans cells
d.Granstein cells
-secrete a pigment responsible for varying shades of brown colour in the skin

Accepted Answer

Melanocytes secrete the pigment melanin that is responsible for varying shades of brown colour in the skin.

Question 9

Indicate the characteristics that apply to bacteria and viruses, labelled a. and b. (Options may be used more than once or not at all.)
a. pertains to bacteria
b. pertains to viruses
-can transform normal host cells into cancer cells

Accepted Answer

Viruses have the ability to transform normal cells into cancer cells, while bacteria do not possess this characteristic.

Question 10

Match the defence cell, labelled a. through d., with the correct characteristics. (Options may be used more than once or not at all.)
a.keratinocytes
b.melanocytes
c.Langerhans cells
d.Granstein cells
-present antigen to suppressor T cells

Accepted Answer

The answer of Match the defence cell, labelled a. through...

Question 11

Match the defence cell, labelled a. through d., with the correct characteristics. (Options may be used more than once or not at all.)
a.keratinocytes
b.melanocytes
c.Langerhans cells
d.Granstein cells
-secrete interleukin 1

Accepted Answer

The answer of Match the defence cell, labelled a. through...

Question 12

Indicate the characteristics that apply to bacteria and viruses, labelled a. and b. (Options may be used more than once or not at all.)
a. pertains to bacteria
b. pertains to viruses
-consist of nucleic acids enclosed by a protein coat

Accepted Answer

Viruses consist of nucleic acids (either DNA or RNA) enclosed by a protein coat. Bacteria do not have a protein coat.

Question 13

Indicate the characteristics that apply to bacteria and viruses, labelled a. and b. (Options may be used more than once or not at all.)
a. pertains to bacteria
b. pertains to viruses
-can become incorporated into a host cell such that the body's defence mechanisms turn against the cell

Accepted Answer

This characteristic applies to viruses, as they are obligate intracellular parasites that require a host cell to replicate and can become incorporated into a host cell's DNA or RNA, leading to immune responses that can target the host cell. Bacteria, on the other hand, are typically extracellular organisms that do not invade host cells in the same way as viruses.

Question 14

Indicate the characteristics that apply to bacteria and viruses, labelled a. and b. (Options may be used more than once or not at all.)
a. pertains to bacteria
b. pertains to viruses
-self-sustaining, single-celled organisms

Accepted Answer

Bacteria are self-sustaining, single-celled organisms. Viruses are not considered to be living organisms and cannot survive on their own.

Question 15

Match the antibody type, labelled a. through e., with the correct characteristic.
a.IgM
b.IgE
c.IgG
d.IgA
e.IgD
-a mediator in asthma and hives

Accepted Answer

IgE is the antibody type that is a mediator in asthma and hives. It has a role in triggering allergic responses by binding to mast cells and basophils, leading to the release of histamine and other inflammatory molecules.

Question 16

Match the type of immunity, labelled a. through c., with the characteristics. (Options may be used more than once or not at all.)
a.applies to active immunity
b.applies to passive immunity
c.applies to both active and passive immunity
-antibodies produced by a source other than one's own body

Accepted Answer

Passive immunity refers to immunity that is acquired from someone or something else. Antibodies produced by a source other than one's own body would fall under this category. Active immunity, on the other hand, refers to immunity that is developed from one's own exposure to an antigen or through vaccination. Both active and passive immunity can involve the use of antibodies, but the source of the antibodies is what distinguishes the two types.

Question 17

Indicate the characteristics that apply to bacteria and viruses, labelled a. and b. (Options may be used more than once or not at all.)
a. pertains to bacteria
b. pertains to viruses
-produce hair and nails

Accepted Answer

Keratinocytes are the cells that produce hair and nails, as well as the protein keratin which forms the skin's protective outer layer. Melanocytes produce the pigment melanin which gives color to the skin, while Langerhans cells and Granstein cells are both types of immune cells involved in defending against foreign substances and pathogens.

Question 18

Match the antibody type, labelled a. through e., with the correct characteristic.
a.IgM
b.IgE
c.IgG
d.IgA
e.IgD
-serves as the B-cell surface receptor for antigen attachment

Accepted Answer

The answer of Match the antibody type, labelled a. through...

Question 19

Indicate the characteristics that apply to bacteria and viruses, labelled a. and b. (Options may be used more than once or not at all.)
a. pertains to bacteria
b. pertains to viruses
-can induce host cells to produce substances toxic to the cell

Accepted Answer

The answer of Indicate the characteristics that apply to bacteria...

Question 20

Match the type of immunity, labelled a. through c., with the characteristics. (Options may be used more than once or not at all.)
a.applies to active immunity
b.applies to passive immunity
c.applies to both active and passive immunity
-exposure to antigen required for immunity to develop

Accepted Answer

Active immunity requires exposure to an antigen for immunity to develop, whereas passive immunity does not.

Quiz 10: The Blood Vessels and Blood Pressure

Match the defence cell, labelled a. through d., with the correct characteristics. (Options may be used more than once or not at all.) a.keratinocytes b.melanocytes c.Langerhans cells d.Granstein cells -are the most abundant cell type in the skin

Match the defence cell, labelled a. through d., with the correct characteristics. (Options may be used more than once or not at all.) a.keratinocytes b.melanocytes c.Langerhans cells d.Granstein cells -produce the tough protective surface of the skin

Match the defence cell, labelled a. through d., with the correct characteristics. (Options may be used more than once or not at all.) a.keratinocytes b.melanocytes c.Langerhans cells d.Granstein cells -present antigen to helper T cells

Match the antibody type, labelled a. through e., with the correct characteristic. a.IgM b.IgE c.IgG d.IgA e.IgD -found in secretions of digestive, respiratory, and genitourinary systems, and in milk and tears

Indicate the characteristics that apply to bacteria and viruses, labelled a. and b. (Options may be used more than once or not at all.) a. pertains to bacteria b. pertains to viruses -can secrete enzymes or toxins that are injurious to host cells

Match the antibody type, labelled a. through e., with the correct characteristic. a.IgM b.IgE c.IgG d.IgA e.IgD -function is uncertain

Match the defence cell, labelled a. through d., with the correct characteristics. (Options may be used more than once or not at all.) a.keratinocytes b.melanocytes c.Langerhans cells d.Granstein cells -secrete a substance that absorbs harmful ultraviolet rays

Match the defence cell, labelled a. through d., with the correct characteristics. (Options may be used more than once or not at all.) a.keratinocytes b.melanocytes c.Langerhans cells d.Granstein cells -secrete a pigment responsible for varying shades of brown colour in the skin

Indicate the characteristics that apply to bacteria and viruses, labelled a. and b. (Options may be used more than once or not at all.) a. pertains to bacteria b. pertains to viruses -can transform normal host cells into cancer cells

Match the defence cell, labelled a. through d., with the correct characteristics. (Options may be used more than once or not at all.) a.keratinocytes b.melanocytes c.Langerhans cells d.Granstein cells -present antigen to suppressor T cells

Match the defence cell, labelled a. through d., with the correct characteristics. (Options may be used more than once or not at all.) a.keratinocytes b.melanocytes c.Langerhans cells d.Granstein cells -secrete interleukin 1

Indicate the characteristics that apply to bacteria and viruses, labelled a. and b. (Options may be used more than once or not at all.) a. pertains to bacteria b. pertains to viruses -consist of nucleic acids enclosed by a protein coat

Indicate the characteristics that apply to bacteria and viruses, labelled a. and b. (Options may be used more than once or not at all.) a. pertains to bacteria b. pertains to viruses -can become incorporated into a host cell such that the body's defence mechanisms turn against the cell

Indicate the characteristics that apply to bacteria and viruses, labelled a. and b. (Options may be used more than once or not at all.) a. pertains to bacteria b. pertains to viruses -self-sustaining, single-celled organisms

Match the antibody type, labelled a. through e., with the correct characteristic. a.IgM b.IgE c.IgG d.IgA e.IgD -a mediator in asthma and hives

Match the type of immunity, labelled a. through c., with the characteristics. (Options may be used more than once or not at all.) a.applies to active immunity b.applies to passive immunity c.applies to both active and passive immunity -antibodies produced by a source other than one's own body

Indicate the characteristics that apply to bacteria and viruses, labelled a. and b. (Options may be used more than once or not at all.) a. pertains to bacteria b. pertains to viruses -produce hair and nails

Match the antibody type, labelled a. through e., with the correct characteristic. a.IgM b.IgE c.IgG d.IgA e.IgD -serves as the B-cell surface receptor for antigen attachment

Indicate the characteristics that apply to bacteria and viruses, labelled a. and b. (Options may be used more than once or not at all.) a. pertains to bacteria b. pertains to viruses -can induce host cells to produce substances toxic to the cell

Match the type of immunity, labelled a. through c., with the characteristics. (Options may be used more than once or not at all.) a.applies to active immunity b.applies to passive immunity c.applies to both active and passive immunity -exposure to antigen required for immunity to develop