HESI A2 (NURSING ADMISSION
TEST)2023 CHEMISTRY
What do ribosomes do? - ANS-Build proteins from amino acids
Explanation:
Ribosomes are molecules which create proteins by linking amino acids
together in a particular order, using messenger RNA molecules as a
blueprint.
What is the name of t...
What do ribosomes do? - ANS-Build proteins from amino acids
Explanation:
Ribosomes are molecules which create proteins by linking amino acids
together in a particular order, using messenger RNA molecules as a
blueprint.
What is the name of the organelle(s) where photosynthesis takes
place? - ANS-Chloroplasts
Explanation:
Chloroplasts are found in plant cells and contain chlorophyll which
converts the energy from sunlight into sugars.
What is mitosis? - ANS-The division of a cell nucleus.
Explanation:
During mitosis, a cell nucleus divides, producing two identical sets of
chromosomes.
Name the four primary nucleobases found in DNA - ANS-cytosine (C),
guanine (G), adenine (A), and thymine (T)
If a genotype consists of two identical alleles, is it homozygous or
heterozygous? - ANS-homozygous
A relationship between two organisms which is of benefit to both, is
what kind of symbiosis? - ANS-Mutualism.
,e.g. the relationship between clownfish and sea anemones - the
clownfish clean and feed the sea anemones, while the sea anemones
protect the clownfish from predators.
In taxonomy, which ranking is most inclusive, Kingdom or Genus? -
ANS-Kingdom
Explanation:
Kingdom is the second highest rank, containing Animalia, Plantae,
Fungi, Protista, Archaea and Bacteria. Genus comes below Family and
above Species.
, Name the two circuits through which blood travels in the human body.
- ANS-Pulmonary and systemic
Explanation:
The pulmonary circuit carries blood to the lungs to be oxygenated. The
systemic circuit delivers this oxygenated blood to the rest of the body
and transports nutrients and waste.
What is a normal pulse rate for an adult? - ANS-60 to 100 bpm
Where in the body would you find the alveoli and what is their
function? - ANS-The alveoli are found in the lungs and facilitate oxygen
and carbon dioxide exchange between the air in the lungs and the
blood.
Which enzyme is secreted by the body to aid the digestion of fat? -
ANS-lipase
Name the two primary female sex hormones. - ANS-Estrogen and
progesterone
Which primary endocrine gland releases both insulin and glucagon? -
ANS-The pancreas
Name the five types of bone found in the human body. - ANS-Long, flat,
short, sesamoid, and irregular
What is the function of afferent neurons? - ANS-To send signals to the
central nervous system
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