1. كلية الصيدلة والعلوم الطبية
قسم التغذية
« من قيمنا »
صون الحرية الفكرية

2. عندما تخسر جولة في الحياة.... فتلك هي أولى درجات النجاح!
لا تخسر التجربة!
وانهض فوراً مستبشراً....
فتلك هي أولى درجات النجاح!

3. Chapter 3: Cell Structure and Genetic Control (Review). Table 3
Chapter 3: Cell Structure and Genetic Control (Review) Table 3.1 page Cell Cycle Apoptosis Cell Division: Mitosis Meiosis

4. Fig. 3.1 A generalized human cell showing the principal organelles.

6. Fig. 3.2 The fluid-mosaic model of the plasma membrane.
The membrane consists of a double layer of phospholipids, with polar region oriented outward and nonpolar hydrocarbon oriented toward the center.
Proteins may completely or partially span the membrane.
Carbohydrates are attached to the outer surface.

7. Gene expression
Genetic expression occurs in 2 stages:
Genetic transcription: synthesis of RNA.
Genetic translation: synthesis of protein.
Genome refers to all of the genes in a particular individual or all the
genes in a particular species.
Genes are regions of DNA that code (through RNA) for polypeptide
chains.
Proteome refers to all of the proteins produced by the genome.

8. Fig. 3.14 The structure of the chromosome.
Part of the DNA is wound around complexes of histone proteins,
forming particles known as nucleosomes.

9. Fig. 3. 25 The life cycle of a cell
Fig The life cycle of a cell. The different stages of mitotic division are shown; it should be noted, however, that not all cells undergo mitosis.

10. Apoptosis occurs normally as part of programmed cell death.
Mitosis: Cell division in which the 2 daughter cells receive the same
number of chromosomes as the parent cell (both daughters
and parent cells are diploid).
Occurs in somatic cells like the epidermis of the skin and
the stomach lining.
Meiosis: is a special type of cell division that occurs only in the gonads
(testes and ovaries), where it is used only in the production of
gametes (sperm cells and ova).
It is called reduction division because the number of
chromosomes is reduced from diploid in the parent cell into a
haploid in the daughter cell.

11. Make peace with your past so it won’t spoil the present.