AC-HPAT Biology Exam (2024) || Questions & Solutions (Graded A+)
AC-HPAT Biology Exam (2024) || Questions & Solutions (Graded A+)
Why is laser technology more effective than conventional surgery in removing cancerous tumours? - ANSWER - Lasers are more precise than standard surgical tools (scal...
, AC-HPAT Biology Exam (2024) ||
Questions & Solutions (Graded A+)
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.
How viruses affect host cells and how treated? - ANSWER - · When it comes into
contact with a host cell, a virus can insert its genetic material into its host, literally
taking over the host's functions. An infected cell produces more viral protein and
genetic material instead of its usual products.
· For most viral infections, treatments can only help with symptoms while you wait for
your immune system to fight off the virus. Antibiotics do not work for viral infections.
There are antiviral medicines to treat some viral infections. Vaccines can help
prevent you from getting many viral diseases.
How bacteria affect host cells and how treated? - ANSWER - · Bacterial pathogens
operate by attacking crucial intracellular pathways in their hosts. These pathogens
usually target more than one intracellular pathway and often interact at several
points in each of these pathways to commandeer them fully.
· Many human illnesses are caused by infection with either bacteria or viruses. Most
bacterial diseases can be treated with antibiotics, although antibiotic-resistant strains
are starting to emerge.
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, 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 cataracts.
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