What are Enzyme? Enzyme is a protein compound that can be a catalyst of chemical reactions in living cells and tissues. Enzymes are organic compounds biocatalyst means that accelerate chemical reactions.
Initial molecule called a substrate will be accelerated its conversion into another molecule called the product. Type of product that will be generated depending on a condition or a substance, called a promoter. All cell biological processes require the enzyme to take place fairly quickly in a direction determined by the trajectory of hormone metabolism as a promoter.
Saturday, August 20, 2011
Friday, August 19, 2011
Glucose
What is Glucose? Glucose is one of the most important carbohydrate used as a source of energy for animals and plants. Glucose is one of the main results for photosynthesis and respiration early. Natural form (D-glucose) is also called dextrose, especially in the food industry.
Glucose is an aldehyde (contains a group of -CHO). Five carbons and one oxygen’s to form a ring called a "ring piranosa". In this ring, each carbon bonded to the hydroxyl side groups and hydrogen atoms except the fifth, which tied the sixth carbon atom outside the ring, forming a group CH2OH. This ring structure is in equilibrium with a more reactive form.
Thursday, August 18, 2011
Hormone
What is a Hormone? Hormones is a chemical substances naturally produced by the body. Once secreted, hormones will be supplied by the blood to various tissue cells and cause certain effects in accordance with their respective functions. Examples of the effect of hormones on the human body:
- Physical changes are marked by the growth of hair in certain areas and a distinctive body shape in men and women.
- Psychological changes: feminine and masculine behavior, sensitivity, mood.
- Reproductive System Changes: Maturation of reproductive organs, the production of sexual organs.
Tuesday, August 2, 2011
Chromosome
What are Chromosome? Chromosomes is vary widely between different organisms. The DNA molecule may be circular or linear, and can be composed of 100,000 to 10,000,000,000 nucleotides in a long chain.
In eukaryotes, nuclear chromosomes are packaged by proteins into a condensed structure called chromatin. This allows the very long DNA molecules to fit into the cell nucleus. The structure of chromosomes and chromatin varies through the cell cycle. Chromosomes are the essential unit for cellular division and must be replicated, divided, and passed successfully to their daughter cells so as to ensure the genetic diversity and survival of their progeny.
In eukaryotes, nuclear chromosomes are packaged by proteins into a condensed structure called chromatin. This allows the very long DNA molecules to fit into the cell nucleus. The structure of chromosomes and chromatin varies through the cell cycle. Chromosomes are the essential unit for cellular division and must be replicated, divided, and passed successfully to their daughter cells so as to ensure the genetic diversity and survival of their progeny.
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