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Explain Starch - Tests for the Presence of Exoenzymatic Activity?
Starch is a polymer of glucose linked together by glycosidic bonds. Microorganisms produce hydrolytic enzyme amylase which degrade starch into short polysaccharide units - dextrins and ultimately into disaccharide maltose. Maltose is finally hydrolyzed to soluble glucose molecules by enzyme maltase. Glucose is transported into the cell and is involved in cellular processes.
For observing hydrolytic activity of these exoenzymes, starch agar is used. Detection of starch hydrolysis after growth is made by observing for the presence or absence of starch using iodine. Iodine imparts blue black colour to the medium, if starch is present. Hydrolysis of starch is demonstrated by a clear zone surrounding the growth of the organism. This is a positive reaction.
Habits: Any abnormal habits needs to be identified. Following habits may have detrimental effect on the implant: 1. Parafunction - Bruxism/ Clenching 2. Tongue Thrusting
Diffusion is the spreading of substance molecules from a region where the substance is more concentrated to other region where it is less concentrated. For example, during the boil
How can the hypothesis that asserts that chloroplasts as well as mitochondria were primitive prokaryotes that associated in mutualism with primitive anaerobic eukaryotic cells be c
Cilia and flagella are structures found in various prokaryotes as well in some eukaryotic cells. They play defense, nutrition and movement roles for the cell. In eukaryotic cells o
What are the factors to an actual shift in the demand curve? Factors that cause an actual shift within the demand curve are as follows: When prices rise or fall that would c
Key skills for healthy coping are: - Problem-solving and goal setting skills: Finding a problem and challenges, thinking of alternatives for dealing with them, testing those
Explain Prosoma in details. First tagma of a cheliciform consisting of the first six segments of the body. Appendages on the prosoma are involved in locomotion and feeding. Pro
classifying kingdom of organisms
recptors and effectors
Electric Charge - Properties of Colloidal Systems Colloidal particles are electrically charged. Some colloidal particles carry a positive charge (+), others a negative charge (
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