WorksheetsBiology B
Total questions: 111
Worksheet time: 1hrs 19mins
What part of the scientific method is this an example of?
b= blue eyes
What is true about two brothers that have brown eyes?
One has genotype BB the other Bb.
w= non-white hair
If you cross a horse with WW and a horse with ww what fraction of the offspring would be expected to have white hair?
True/False: Your body cannot make antibodies for pathogens that you have never been in contact with.
True, because your body needs to encounter the pathogen at least once in order to create the antibodies.
False, because you can make antibodies via immunizations given by a doctor.
What is the function of antibodies within the immune system?
Antibodies kill off any antigen that enters the body.
Antibodies are only made when you are given a vaccination for specific antigens.
Antibodies bind to specific antigens to flag for destruction.
Antibodies are part of an external defense mechanism.
Which of the following statements are TRUE about vaccinations?
Allow B cells to make antibodies for any type of antigen the body comes in contact with.
Triggers the body to make memory cells for specific pathogens.
They are substances prepared from killed or weakened pathogens.
Always allows the body to resist an infectious disease any time it comes into contact with it.
What happens after the second time you are exposed to a pathogen?
The body will not be able to fight off the pathogen quickly, because it knows how to get into the body easier.
The body's immune system will react the same was as it did during the first exposure.
The body can only be exposed to a pathogen a second time if you do not have a vaccine.
The body will know how to fight off the pathogen quickly, because memory cells have been created after the first encounter.
How do T cells differ from B cells?
T cells fight pathogens by killing pathogens directly, while B cells fight pathogens by making antibodies.
T cells only make memory cells, and B cells only make antigens
T cells fight pathogens by making antibodies, while B cells fight pathogens by killing pathogens directly.
T cells can only fight off pathogens the body has encountered once, and B cells can fight off any pathogen the body comes across.
Cells that ingest pathogens are
plasma cells.
phagocytic cells.
helper T cells.
antibodies.
T cells that kill infected cells are
cytotoxic T's.
helper T's.
plasma cells.
antigen presenting cell.
A key part of the humoral immune response is
the attack of cytotoxic T cells on infected host cells.
the production of antibodies by plasma cells.
perforation of infected host cells by perforin.
the attack of phagocytes on living pathogens.
Secondary immune responses upon a second exposure to a pathogen are due to the activation of
memory cells.
macrophages.
stem cells.
B cells.
Antibodies are
carbohydrates.
amino acids.
lipids.
proteins.
Make new bone and help repair damage.
Osteoblast
Osteoclast
Osteocytes
Osetoblank
