w w w e tr .X m eP e ap UNIVERSITY OF CAMBRIDGE INTERNATIONAL EXAMINATIONS General Certificate of Education Advanced Subsidiary Level and Advanced Level .c rs om *0485738200* BIOLOGY Paper 2 Structured Questions AS Candidates answer on the Question Paper. Additional Materials: Electronic calculator Ruler (cm/mm) 9700/21 October/November 2009 1 hour 15 minutes READ THESE INSTRUCTIONS FIRST Write your Centre number‚ candidate number and name in the spaces provided at the top of this
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the potatoes and put them in the salt solution. Then the telephone rang and he spent 30 minutes talking to George. When he returned to put the potatoes on the stove they were flaccid (soft). Explain what happened to the potatoes. The concentration of free-moving water molecules is higher in potato cells‚ the cytoplasm of the cell is hypertonic. The water molecule will flow from higher concentration to lower concentration‚ so that they get out of potato cells through osmosis. The plasma membrane of plant
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All Americans can be considered free if compared to other countries version of freedom. The constitution grants basic human rights such as life‚ liberty‚ and the pursuit of happiness‚ these rights guarantee Americans a chance to choose their own destiny. Freedom is the ability to choose what you want to do when you want to do it. Now when using this definition of freedom are all Americans truly free? No they are not. Prejudice is another problem that not all Americans. Everyday Americans are
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Skittles. Is this free will? What if she had wanted to buy marijuana‚ but that was not there because it is illegal? Is that still free will? Or is someone or something controlling the choices she makes? Or how about this case. Joe gets arrested for stealing. He goes to jail without having the option to say no. Is this free will? Well‚ it was free will when Joe was stealing. Joe chose to steal‚ therefore he received the punishment‚ which was made clear in laws for that county. Yes‚ that is free will. But
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or cell doctrine‚ states that all organisms are composed of similar units of organization‚ called cells. The concept was formally articulated in 1839 by Schleiden & Schwann and has remained as the foundation of modern biology. The idea predates other great paradigms of biology including Darwin’s theory of evolution (1859)‚ Mendel’s laws of inheritance (1865)‚ and the establishment of comparative biochemistry (1940). First Cells Seen in Cork While the invention of the telescope made the
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What are the central ideas of Cells? • What are cells? – Cells are the smallest basic unit of living things. • What do they do? – Cells take in raw materials and making new substances. • Why do they do this? – In cells‚ organelles carry out activities to keep the organism alive. – E.g. synthesising proteins and fats‚ releasing energy from glucose. What are the central ideas of Movement of Substances? • What processes describe how substances move from one region to another? –
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imagine an America where Colleges are free and there are no student loans needed. That is what people call a Utopia because it will never exist unless we sacrifice something else. The average person is all for free college because student loans are the biggest debt they gain as a young adult. However‚ they tend to skip over the many negatives that come with free College. Colleges should not be free because the government will use taxes to pay for the college‚ college is a crucial period where people
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doesn’t happen to the students in Europe‚ the students there can learn in college for free or almost free. “According to Washingtonpost.com there are 7 countries that Americans can go and study in English language for free. In Europe they offer education to the students until college‚ in Germany‚ Finland‚ Sweden‚ France‚ Norway‚ Slovenia‚ and Brazil are all offering them a place to learn for free. So when college is free‚ of course there will be more students by the reason that they don’t have to pay
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Chapter 1: May/June 06 1 What is the resolution‚ in nanometres‚ of an electron microscope and of a light microscope? A electron microscope 0.5 light microscope 20 B 0.5 200 C 5.0 20 D 5.0 200 2 The diagram shows a drawing of an electron micrograph of a cell. Which structures are surrounded by double membranes? Golgi apparatus lysosome mitochondrion nucleus cytoplasm A ✓ ✓ ✓ ✓ ✓ B ✓ ✗ ✗ ✗ ✗ C ✗ ✗ ✓ ✓ ✗ D ✗ ✓ ✗ ✗ ✓ 3 In which animal cells would Golgi apparatus be most abundant
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Toward a New Vision: Race‚ Class‚ and Gender as Categories of Analysis By: Patricia Hill Collins Summary- The author writes about oppression in society and how it is full of contradictions. She states that there are no pure victims or oppressors‚ but rather everyone experiences a different amount of penalty and privilege based on their race and social status. She believes that if women and people of colour could find that they have common grounds in regards to class‚ it will eliminate racism
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