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HESI BIOLOGY ( LATEST 2024 / 2025 ) ACTUAL QUESTIONS AND ANSWERS 100% CORRECT
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HESI BIOLOGY ( LATEST 2024 / 2025 ) ACTUAL QUESTIONS AND ANSWERS 100% CORRECT
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HESI BIOLOGY( LATEST ) ACTUAL QUESTIONS AND ANSWERS
100% CORRECT
• eukaryotes:
Answer:
organisms made up of one or more cells that have a nucleus and membrane-bound
organelles
• organic:
Answer:
being or relating to or derived from or having properties characteristic of living
organisms
• carbohydrates:
Answer:
main source of energy for the body
• monosaccharides:
Answer:
The building blocks of carbohydrates are single sugars such as glucose and
fructose.
• dehydration synthesis:
Answer:
A chemical reaction in which two molecules covalently bond to each other with the
removal of a water molecule.
• hydrolysis:
Answer:
a chemical reaction in which water reacts with a compound to produce other
compounds
• lipids:
,Answer:
energy-rich organic compounds, such as fats, oils, and waxes, that are made of
carbon, hydrogen, and oxygen
• nucleic acids:
Answer:
very large and complex organic molecules that store and transfer important
information in the cells
• mitosis:
Answer:
in eukaryotic cells, a process of cell division that forms two new nuclei, each of
which has the same number of chromosomes
• meiosis:
Answer:
process by which the number of chromosomes per cell is cut in half through the
separation of homologous chromosomes in a diploid cell
• mitosis interphase:
Answer:
a period between two mitotic or meiotic divisions during which the cell grows,
copies its DNA, and synthesizes proteins
• mitosis prophase:
Answer:
first and longest phase of mitosis, chromatin condenses into chromosomes and
becomes visable, centrioles separate and move to opposite sides of the nucleus,
spindle begins to form, nucluer envelope bracks down
• mitosis metaphase:
Answer:
second stage of mitosis where chromosomes line up across the center of the cell,
mictotubles connect the centromere of each chromosome to the 2 poles of the
, spindle
• mitosis anaphase:
Answer:
third phase of mitosis where sister chromatids separate into individual
chromosomes and are moved apart into two groups near the poles of the spindle,
phase ends when chromosomes stop moving
• properties of water:
Answer:
great solvent/dissolves waste products/participates in chemical reactions/absorbs
and releases heat slowly/requires a lot of heat to change to gas/good
lubricant/makes up most volume of cells and body fluids
• polarity of molecules:
Answer:
1. a molecule is said to be polar if one side of a molecule is slightly negative and
one side is slightly positive
2. a molecule containing only NP bonds will be NP
• biological molecules:
Answer:
the chemical compounds that provide physical structure and that bring about
movement, energy, use, and other cellular functions
• glycogen:
Answer:
An extensively branched glucose storage polysaccharide found in the liver and
muscle of animals; the animal equivalent of starch.
• starch:
Answer:
or amylum is a carbohydrate consisting of a large number of glucose
units joined together by glycosidic bonds. This polysaccharide is produced by all
green plants as an energy store. It is the most important carbohydrate in the human
diet and is contained in such staple foods as potatoes, wheat, maize (corn), rice,
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