AS Psychology: Unit 2 PSYA2 (May exam) Biological Psychology – Stress Unit 2 Booklet 1 (of 2): Stress as a Bodily Response Stress First of all we need to answer the question- ‘What is stress? There is no single definition of stress. Any definition of stress must take into account the internal factors (physiological changes)‚ external factors (the situation itself) and
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1.A) Two main forms of cells exist: eukaryotic cells and prokaryotic cells. Prokaryotic cells are smaller and do not have membrane-bound nucleus or membrane- bound organelles‚ but do have: plasma membrane‚ cytosol and cytoplasm‚ and ribosomes. Prokaryotes contain much less DNA than eukaryotes and have circular chromosomes. Eukaryotic cells have information processing organelles‚ such as the nucleus which houses most of the cell’s DNA‚ and ribosomes which use information from DNA to produce proteins
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likely occupied on there cell phone. But to most teenagers there cell phones are everything to them and it becomes there center of attention like the sun in our solar system. The feelings you get when on your cell phone makes you feel so in charge like a CEO of an powerful organization or a silver back alpha male gorilla. Sadly teens like myself are so involved into there phones we will ignore someone who is physically in front of us for someone virtually on our cell phones. Slowly it’s turning
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The Causes of Stress: The commonly harmful‚ effects of Stress on our physical and mental states. What is Stress? Stress is caused by anything that causes us to feel nervous‚ fearful‚ scared‚ or anything that makes us feel in anyway uncomfortable; that is either‚ mental‚ physical or emotional. This is caused by our responsibilities and the level of tolerance we possess of those responsibilities. Responsibilities In responsibilities we find: Worldly Responsibilities are any expectations of
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Cell Structure - Cell Organelles 1. What is cell theory? Cell theory asserts that the cell is the constituent unit of living beings. Before the discovery of the cell‚ it was not recognized that living beings were made of building blocks like cells. The cell theory is one of the basic theories of Biology. 2. Are there living beings without cells? Viruses are considered the only living beings that do not have cells. Viruses are constituted by genetic material (DNA or RNA) enwrapped by a protein
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Eukaryotes are organisms whose cells are organized into complex structures by internal membranes and a cytoskeleton. The most characteristic membrane bound structure is the nucleus. This feature gives them their name‚ (also spelled "eucaryote‚") which comes from the Greek word referring to the nucleus. Animals‚ plants‚ fungi‚ and protists are eukaryotes. Microorganisms and all other living organisms are classified as prokaryotes or eukaryotes. Prokaryotes and eukaryotes are distinguished on the
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Abstract Stress is a common condition‚ a response to a physical threat or psychological distress‚ that generates a host of chemical and hormonal reactions in the body. In essence‚ the body prepares to fight or flee‚ pumping more blood to the heart and muscles and shutting down all non-essential functions. As a temporary state‚ this reaction serves the body well to defend itself. However‚ when the stress reaction is attenuated‚ the normal physical functions that have been either exaggerated or shut
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Knes 342 Stress Management Study guide The Nature of Stress: - Our focus in this class is to explore stress through the lens of “wisdom” and “common sense” (look at stress with understanding of contemporary issues) - Wisdom and compassion rather than anger and fear to handle stress - Some changes that occurred includes o Economy – financial uncertainties o Technology- (iphone‚ ipods‚ ipads) feeling the stress of having to catch up to technology or the understanding
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allow cell phones to be sold without pre-market testing. The rationale‚ known as the “low power exclusion‚” distinguished cell phones from dangerous microwave ovens based on the amount of power used to push the microwaves. At that time‚ the only health effect seen from microwaves involved high power strong enough to heat human tissue. The pressure worked‚ and cell phones were exempted from any type of regulatory oversight‚ an exemption that continues today. An eager public grabbed up the cell phones
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THE ORGANELLES OF EUKARYOTIC CELLS . The difference between Prokaryotic and Eukaryotic Cells is organelles‚ membrane enclosed structures that perform specific duties. The most important of all is the “nucleus‚” this holds the DNA and is surrounded by a double membrane. The Prokaryotic lacks a nucleus which is not partitioned from the other cells by membranes. The region between the nucleus and plasma membrane is called cytoplasm and in the Eukaryotic cell it consists of various organelles
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