at this post we brief little give tutorial about cell structure, why because in 1995 until now cell always have the own number at UMPTN or SPMB test sheet,
see and learn carefully biological cell structure below
here we explain some parts of cell thats are
Golgi Apparatus
Structure
- stacks of flattened sacs of unit membrane (cisternae)
- vesicles pinch off the edges
Function
- modifies chemicals to make them functional
- secretes chemicals in tiny vesicles
- stores chemicals
- may produce endoplasmic reticulum
Ribosome
Structure
- non-membraneous, spherical bodies composed ofv RNA (ribonucleic acid) and protein enzymes
Function
- site of protein synthesis
Mitochondrion
Structure
- composed of modified double unit membrane (protein, lipid)
- inner membrane in folded to form cristae
Function
- site of cellular respiration ie. the release of chemical energy from food
below is test sheet of UMPTN (Nasional University entrance test) in Indonesia, consist of english language with year 2000, at this post you also can download the answer (pembahasan)
the test sheet can download at soal
UMPTN Bahasa Ingris 2000
after that you can also download the answer (pembahasan) at
Pembahasan Soal UMPTN
the main topic in UMPTN 2000 for english test is nuclear Power
Nuclear power is any nuclear technology designed to extract usable energy from atomic nuclei via controlled nuclear reactions. The most common method today is through nuclear fission, though other methods include nuclear fusion and radioactive decay. All utility-scale reactors[1] heat water to produce steam, which is then converted into mechanical work for the purpose of generating electricity or propulsion. Today, more than 15% of the world’s electricity comes from nuclear power, more than 150 nuclear-powered naval vessels have been built, and a few radioisotope rockets have been produce
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