DIGESTIVE ENZYMES AND THEIR FUNCTIONS Mouth -the oral cavity or the mouth contains salivary glands that secrete a wide range of enzymes to aid the first step of metabolism of food. The salivary gland secretes the enzyme lysozyme which has an antibacterial action. The enzymes secreted by the mouth mainly provide protection against bacteria. Betaine helps to maintain a fluid balance inside the mouth. The lists of digestive enzymes secreted by the oral cavity are mentioned in the table. Enzymes
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Homeostasis A state of balance in the body Whoa Homeostasis “the tendency of a system‚ esp. the physiological system of higher animals‚ to maintain internal stability‚ owing to the coordinated response of its parts to any situation or stimulus tending to disturb its normal condition or function” - Dictionary.com Unabridged (v 1.1) “The ability or tendency of an organism or a cell to maintain internal equilibrium by adjusting its physiological processes.” - American Heritage Stedman’s Medical
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References: Hormone control of blood pressure. (n.d.). Retrieved from https://www.boundless.com/biology/water-and-waste-management/physiological-control- osmoregulation-and-excretion/hormone-control-blood-pressure/ Sharma‚ S. (2002). Control of arterial blood pressure. Retrieved from http://www.nda.ox.ac.uk/wfsa/html/u01/u01_008.htm Weber‚ C. (2007‚ December 27). What is the renin-angiotensin system?. Retrieved
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a) Describe the physico-chemical qualities of water that are important to aquaculturists. Aquaculture can be defined as the high-density production of fish‚ shellfish and plant forms in a controlled environment. Stocking rates for high-density aquaculture are typically thousand fold greater than wild environments. Modern fish culturists employ both open and close systems to raise fish. Open systems‚ such as‚ the raceways are characterized by rapid turnover of water. Closed systems are commonplace
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On 11th November 1995‚ a girl named Leah Betts took an ecstasy tablet at her 18th birthday party. Five days later‚ she died in hospital after falling into a coma from which she did not recover. It was apparent after taking the tablet that she began to feel unwell‚ and took regular trips to the bathroom to drink water. She consumed 7 litres of water in the duration of 90 minutes. There was a lot of speculation on the fundamental cause of her death‚ which was established as water intoxication as a
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BIOLOGY 1403 – ANIMAL BIOLOGY SP2013 Dr. Matthew Kaser Office: South Science 402 matthew.kaser@csueastbay.edu Office Hours: W 3:30-4:30 Objectives – To introduce students to the science of animals by: * Comparing the structural and functional characteristics of different animal groups in an evolutionary and ecological context. * Conducting experiments‚ collecting and analyzing data‚ and writing scientific papers‚ and through hands-on interaction with animal phyla *
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Prokaryotes were the first cells; bacteria-like organisms • Descendants belong in two groups: Archaea and Eubacteria Symbiogenesis: process whereby cells of one prokaryotic lineage engulfed‚ but did not digest cells from another prokaryotic lineage. The engulfed cell was eventually reduced to an organelle inside the host cell. Eukaryotic products of symbiogenesis include mitochondria and plastids Primary endosymbiosis: development of organelle by prokaryote engulfed and modified the bacteria
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Biology 3 Spec: |BIOLOGY UNIT B3 Topic 1 Control systems | |1.1 Be able to demonstrate an understanding that cell metabolism leads to the build-up of waste products in the | |blood‚ including carbon dioxide and urea | |1.2 Know that urea is produced from the breakdown of excess amino acids in the liver and is removed by the | |kidneys
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Diffusion‚ Osmosis and Active Transport Substances will move through the membrane by diffusion. This is the random spreading out of particles until they are even. For example‚ when you put your instant coffee in boiling water‚ the coffee particles spread out and fill the entire mug‚ this is diffusion. A second way that substances can move through the cell membrane is by osmosis. This is a special type of diffusion where water moves from a high to a low concentration through a ’partially permeable
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Physiological Adaptation of Fish to Its Environment BIO101 March 11‚2013 Physiological Adaptation of Fish to Its Environment All organisms around the world are sparsely distributed depending on the environment that best suited to their modes of survival. Organisms undergo adaptation – an evolutionary process where they became well-suited to a particular
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