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Point out some Difference between Tumor And Cancer?
Tumor is a swelling or growth because of an abnormal growth of tissue. Tumors can either be benign or malignant. The benign tumor remains highly localized. On the other hand, the malignant tumor known as cancer is characterized by invasiveness and can form distant colonies elsewhere in the body. Cancer cells are very irregular in shape and their arrangement in tumor tissue is very unruly. Cancer is painless if it does not compress the adjacent organs. Later, it causes pain by invading or pressing the adjacent vital organs.
Another aspect of malignancy is the ability of tumor cells to elude the immune system. These cells may cover up antigens that would otherwise mark them for destruction or they may rid themselves of the cell surface molecules that lymphocytes use to recognize foreign cells. The immune system is largely ineffective.
Sunlight is absorbed by chlorophyll molecules. Chlorophyll is a porphyrin in that nitrogen atoms are coordinated to a magnesium ion instance for it is a magnesium porphyrin. This
Explain about Listeria monocytogenes infection Listeria monocytogenes is a gram-positive, motile, non-spore forming rod. It is widely distributed in nature and can be found on
(a) What do you understand by the term 'accommodation'? (b) What part does the lens play in this process? a) Accommodation is the way the eye can focus either
Restriction endonucleases are enzymes which: 1. make cuts at specific positions within the DNA molecule 2. recognize a specific nucleotide sequence for binding of DNA ligase
Polychaete, Mollusca and Echinodermata Polychaete and Mollusca The polychaetes have a trochophore larva. A common trochophore larva is top shaped bearing a tuft of cilia
Define Specialized Nutritional Formulations for CHD? Achieving calorie and protein requirements with restricted fluid intake, you would realize, is a formidable challenge. Hig
What is light reaction? Light reactions are reactions, which are initiated by light (also photo-induced reactions). Usually, light energy is change into chemical energy.
Q What is the cyclosis? Cyclosis is a kind of interior cell movement in which an oriented flow of circulating material is created and maintained in the cytoplasm by the action
What are ions? What are the two types of molecules into which ions are classified? Ions are atoms or substances electrically charged by means of loss or gain of electrons.
Obelia is considered to be of special interest in zoology as an animal showing an intermediate grade of organization?
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