Biology Year 11 Yearly Notes Chapter One – A local ecosystem 1.1 Terrestrial and Aquatic Environments -Ecosystem: any environment containing living organisms interacting with each other and with the non-living parts of that environment. -Environment: the environment of an organism is its surroundings‚ both living and non-living -Habitat: the habitat of an organism is the place where it lives. Australian Environments * Terrestrial environments are environments on land. Land covers about
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possesses‚ and the longer the wave the less energy it possesses (Wiles‚ 2013). The sun’s light waves are absorbed and captured by the plant’s leaves to perform Photosynthesis. Photosynthesis occurs in organelles within plant leaves called chloroplasts. Chloroplasts contain chlorophyll‚ a light absorbing pigment that in different variations absorbs different wavelengths of light‚ as well as other light absorbing pigments like carotenoids and hydrocarbons (Campbell‚ 2008). Chlorophyll a and b along
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Cellular Biology Lab – Homework #3 Due the week of Nov. 4th You may use the lab manual‚ pre-lab lectures‚ and credible internet resources‚ however you may not use your cell bio lab classmates as a resource. You will most likely see this material again on the Final and I highly encourage you to work individually and seek help from myself or your TA. Plagiarism will result in an automatic zero. 1. In the cell bio lab‚ we use company manufactured gels‚ however you can make you own polyacrylamide
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atoms‚ which are the smallest units of matter. There are many different kinds of cells. The two kinds you are most likely to be familiar with are animal and plant cells. Some of the differences between them are that plant cells have a cell wall and chloroplasts. Cells all have different sizes‚ shapes‚ and jobs to do. The cells in a single organism may have different shapes‚ sizes‚ and jobs. Organisms like humans are made up of trillions of cells. There are also one-celled organisms such as euglenas
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CHAPTER 6 (SECTION 6.3) Bonding Carbon- 4 bonds attached Oxygen- 2 bonds attached Hydrogen- 1 bond attached Purines vs. Pyrimidines Purines- adenine & guanine Pyrimidines- cytosine‚ thymine (DNA)‚ uracil (RNA) Pentose vs. Hexose sugars Pentose- 5 carbon atoms Hexose- 6 carbon atoms Carbohydrates Empirical Formula CH2O Hydrolysis vs. Condensation Reactions Hydrolysis- using water to break down protein into amino acids Condensation Reaction- nucleotides Enzymes- a protein
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CBSE TEST PAPER-01 CLASS - IX Science (Cell: The basic unit of life) 1 The energy currency of cell is -: (a) ADP 2 (b) AMP (c) ATP (d) GTP [1] (c) Shrink (d) Show plasmolysis [1] (c) Mitochondria (d) Chloroplast [1] (d) Nerve cell [2] [2] [2] [2] [3] [3] [3] [1] A cell in placed in hypotonic solution will -: (a) Swell up (b) Not undergo any change 3 Which organelle release oxygen? (a) Ribosome (b) Golgi apparatus 4 Which of the following human cells lack nuecleus? (a) WBC (b) RBC (c)
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however it is not ideal for the duckweed to grow in shallow conditions. If the pond is too shallow than the freezing and evaporating point of the pond will fluctuate too much for the duckweed to grow. Duckweed is composed of a think cell wall‚ with chloroplasts‚ mitochondria‚ smooth ER‚ Rough ER‚ a vacuole‚ cytoplasm‚ goolgi body‚ nucleus‚ nucleolus. All these parts in duckweed help the plant carry out photosynthesis. Duckweed makes food just as any other plant and is an autotroph. The plant uses cellular
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Biology Major substances: Organic compounds – are compounds that contain carbon and were originally made by living things e.g. carbohydrates‚ lipids‚ proteins‚ nucleic acids Inorganic compounds – are compounds do not contain carbon as a main element Organic compounds | Composition | Function | Proteins | Carbon‚ hydrogen‚ oxygen and nitrogen | Used in the structure‚ storage‚ movement and transport of cells for growth and repair. | Lipids | Carbon‚ hydrogen and oxygen | Stores energy
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through which plants and some certain types of bacteria get energy from the sun’s UV-rays and use it to create and store sugar that is transformed into ATP by cellular respiration later on in the process. In plants‚ this process takes place in chloroplasts‚ which concentrate in the mesophyll cells‚ with the help of chlorophyll‚ the green pigment‚ which is directly involved in photosynthesis. It is important to understand that we see leaves green simply because the green color gets reflected the most
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Referring to the above equation‚ it can be seen that light energy plays the role as the source of energy stimulating the process of photosynthesis. The main pigment that absorbs light energy is chlorophyll which is the green pigment found inside chloroplasts. A green leaf cut out into discs of the same size are used in this experiment. This experiment is carried out to discover how different intensity would affect the rate of photosynthesis. Hypothesis : As light intensity increases‚ the rate of
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