Nutrition cells is circular with no chromosomes in

Nutrition is
an important characteristic for all living cells because animals and plants
need food for energy and growth. Plants consume their food via photosynthesis. Whereas
animals rely on other animals and plants. Respiration is essential for living
cells. This is because it releases energy via organic compounds. Respiration
occurs in the inner mitochondrial matrix of the mitochondria. Adenine
triphosphate energy is the universal energy carrier which drives the reaction
for aerobic respiration. Eventually releasing energy from consumption of
nutrients in food. Cells have external thin structures like cilia which allow
them to move. They also move with help from the internal cytoskeleton leading
to muscle contraction. Reproduction occurs within cells to allow them to grow.
There are two types of cell division mitosis and meiosis. Mitosis is when two diploid
daughter cells are formed consisting of the same genetic material of the
original cell and are identical to each other. Whereas meiosis is when a zygote
is formed from fertilization of gametes producing four haploid daughter cells
and are not genetically identical.

 

1.2

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Prokaryotic cells consists of bacterial cells
which lack complex organelles because they do not have a true nucleus or a
nucleolus and an endoplasmic reticulum. They also have very small ribosomes
(70S). Whereas eukaryotic cells contain a true nucleus present with the
nucleolus surrounded by the nuclear envelope which has nuclear pores. Their
ribosomes are larger (80S).They also have an endoplasmic reticulum with the Golgi
body and lysosomes. The DNA in prokaryotic cells is circular with no
chromosomes in comparison to eukaryotic cells which have linear DNA with
appropriate proteins producing true chromosomes. Both of these differ from
viruses because

 

1.3

Eukaryotic cells contain composite organelles
in order to function efficiently. The nucleus is a large organelle that contains the cell’s genetic
information.

The Golgi body is an
organelle that packages proteins and lipids into vesicles to be transported.
Mitochondria are there for providing the main source of energy. Through aerobic
respiration, mitochondria generate most of the cell’s adenosine triphosphate
(ATP). Lysosomes contain acid hydrolase enzymes, which break down and digest
macromolecules and microorganisms. They originate by budding off of the Golgi
complex.

 

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