Cell membranes protect and
organize cells. All cells have an
outer plasma membrane that
regulates not only what enters the
cell, but also how much of any
given substance comes in.
(1) they keep toxic
substances out of the
cell; (2) they contain
receptors and channels
that allow specific
molecules, such as ions,
nutrients, wastes, and
metabolic products,
The cell wall surrounds the
plasma membrane of plant
cells and provides tensile
strength and protection
against mechanical and
osmotic stress. It also
allows cells to develop
turgor pressure, which is
the pressure of the cell
contents against the cell
wall.
Chloroplasts are plant cell
organelles that convert light
energy into relatively stable
chemical energy via the
photosynthetic process. By
doing so, they sustain life on
Earth. Chloroplasts also provide
diverse metabolic activities for
plant cells, including the synthesis
of fatty acids, membrane lipids,
A Golgi body, also known as a Golgi
apparatus, is a cell organelle that helps
process and package proteins and lipid
molecules, especially proteins destined
to be exported from the cell. Named
after its discoverer, Camillo Golgi, the
Golgi body appears as a series of stacked
membranes.
Mitochondria are membrane-bound cell
organelles (mitochondrion, singular)
that generate most of the chemical
energy needed to power the cell's
biochemical reactions. Chemical energy
produced by the mitochondria is stored in
a small molecule called adenosine
triphosphate (ATP).
The nucleus controls and regulates the
activities of the cell (e.g., growth and
metabolism) and carries the genes,
structures that contain the hereditary
information. Nucleoli are small bodies
often seen within the nucleus. The gel-like
matrix in which the nuclear components
are suspended is the nucleoplasm.
The endoplasmic reticulum can either be
smooth or rough, and in general its function is to
produce proteins for the rest of the cell to
function. The rough endoplasmic reticulum has
on it ribosomes, which are small, round
organelles whose function it is to make those
proteins
The smooth endoplasmic reticulum functions in
many metabolic processes. It synthesizes
lipids, phospholipids as in plasma
membranes, and steroids. Cells that secrete
these products, such as cells of the testes,
ovaries, and skin oil glands, have an excess of
smooth endoplasmic reticulum.
Vacuoles are membrane-bound organelles that
can be found in both animals and plants. In a
way, they're specialized lysosomes. That is to
say that their function is really to handle waste
products, and by handle, mean take in waste
products and also get rid of waste products.
Assessment 3
Answer:
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Cell membrane as Dad-Cell membrane controls what goes into and out of the cell like a
dad he controls what comes into and out of the house or family's life
Nucleus as Mom- Nucleus protects the DNAbthat controls the cell like mom in the family
she controls what happens in the family's life
Nucleolus as Daughter - Nucleolus makes ribosomes it is like daughter of the family
because she likes to make crafts
Nuclear Membrane as Brother- Nuclear membrane surrounds the nucleus protects the
DNA and RNA like how brother protects his siblings and family
Assessment 1
A virus isn’t “alive” in a typical sense. It doesn’t need to eat, drink, or breathe. It’s just a
collection of genetic material (DNA or RNA) and a small toolbox of proteins. Most flu
and cold viruses — including COVID-19 — are contained in a shell called a capsid.The
corona virus is definitely a virus. Experts say covid originated on bats, that’s
also how the coronaviruses behind
Middle East respiratory syndrome (MERS) and severe acute respiratory syndrome (SARS) got started.
Scientists first identified a human coronavirus in 1965. It caused a common cold. Later that decade,
researchers found a group of similar human and animal viruses and named them after their crown-like
appearance.
The virus can surely kill people. First, it moves down to your respiratory tract. That’s the airway that
includes your mouth, nose, throat, and lungs. Your lower airways have more ACE2 receptors than the
rest of your respiratory tract. So COVID-19 is more likely to go deeper than viruses like the common cold.
Your lungs might become inflamed, making it tough for you to breathe. This can lead to pneumonia, an
infection of the tiny air sacs (called alveoli) inside your lungs where your blood exchanges oxygen and
carbon dioxide.
Corona transmit fast. It can transmit through an infected person's mouth or nose in small liquid particles when they
cough, sneeze, speak, sing or breathe. These particles range from larger respiratory droplets to smaller aerosols.