AC-HPAT BIOLOGY EXAM (LATEST
UPDATES STUDY BUNDLE WITH COMPLETE SOLUTIONS)
QUESTIONS AND VERIFIED ANSWERS | 100%
CORRECT | GRADE A - ALGONQUIN
Pancreas and Type 1 diabetes .....ANSWER.....The pancreas is
the organ that produces insulin, and it plays a major role in
regulating blood glucose levels. Type 1 diabetes occurs when the
pancreas does not make enough or any insulin.
How does insulin work in diabetes? .....ANSWER.....Insulin pumps
are small, computerized devices that mimic the way the human
pancreas works by delivering small doses of short acting insulin
continuously (basal rate). The device also is used to deliver
variable amounts of insulin when a meal is eaten (bolus)
chemotherapy .....ANSWER.....Chemotherapy is a drug treatment
that uses powerful chemicals to kill fast-growing cells in your
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body. Chemotherapy is most often used to treat cancer, since
cancer cells grow and multiply much more quickly than most cells
in the body. It targets cells that grow and divide quickly, as
cancer cells do. Unlike radiation or surgery, which target specific
areas, chemo can work throughout your body. But it can also
affect some fast-growing healthy cells, like those of the skin, hair,
intestines, and bone marrow.
How can stem cells be used in the treatment of leukemia? And
how effective is it? .....ANSWER.....Stem cell transplant replaces
the leukemia cells in your bone marrow with new ones that make
blood. Your doctor can get the new stem cells from your own
body or from a donor. Stem cell transplantation is effective
against leukemia. In many cases, however, the transferred
immune cells of the donor also attack the recipients' healthy
tissue—often with fatal consequences. ... Stem cell therapy offers
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people suffering from leukemia or bone-marrow cancer the
chance of full recovery.
Why is laser technology more effective than conventional
surgery in removing cancerous tumours? .....ANSWER.....Lasers are
more precise than standard surgical tools (scalpels), so they do
less damage to normal tissues. As a result, patients usually have
less pain, bleeding, swelling, and scarring. With laser therapy,
operations are usually shorter.
Urinary system .....ANSWER.....· The urinary system, also known as
the renal system or urinary tract, consists of the kidneys, ureters,
bladder, and the urethra. The purpose of the urinary system is to
eliminate waste from the body, regulate blood volume and
blood pressure, control levels of electrolytes and metabolites,
and regulate blood pH
Nanotechnology .....ANSWER.....Nanotechnology can provide
rapid and sensitive detection of cancer-related molecules,
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enabling scientists to detect molecular changes even when they
occur only in a small percentage of cells.
Mercury poisoning .....ANSWER.....The most common cause of
mercury poisoning is from consuming too much methyl mercury or
organic mercury, which is linked to eating seafood. Small
amounts of mercury are present in everyday foods and products,
which may not affect your health. Too much mercury, however,
can be poisonous. Mercury salts affect primarily the
gastrointestinal tract and the kidneys, and can cause severe
kidney damage; however, as they cannot cross the blood-brain
barrier easily, these salts inflict little neurological damage
without continuous or heavy exposure.
How can ultraviolet light from the sun affect the cells of the
human eye? .....ANSWER.....UV rays may lead to macular
degeneration, a leading cause of vision loss for older Americans.
UV rays, especially UV-B rays, may also cause some kinds of