Biol GOD Notes. First Edition 1 L. Leong 2012 Chapter 1: Molecules of Life Cell Theory ∝ All living things are composed of cells and the products of cells ∝ Cells are the basic functional unit of life ∝ All cells arise from pre-existing cells Living Things Unicellular: consisting of one cell Multicellular: composed of many cells ∝ All living things: grow and develop‚ regulate metabolic processes‚ move‚ respond to stimuli‚ reproduce AUTOTROPHS: manufacture their own organic carbon compounds
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The activities of MDM2 are highly controlled by extracellular and intracellular stress signals.These signals include genotoxic stress signals‚ ribosomal stress‚ oncogenic activation‚ and psychological stress signals. They function through distinct signalling pathways to regulate the ability of MDM2 to bind with p53‚ MDM2 E3 ubiquitin ligase activity‚ and the cellular localization of MDM2. The ability of MDM2 to export p53 to cytoplasm is blocked by the phosphorylation of MDM2 at these two positions
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MICHAEL OKPARA UNIVERSITY OF AGRICULTURE UMUDIKE (MOUAU) COLLEGE OF CROP AND SOIL SCIENCE (CCSS) DEPARTMENT OF AGRONOMY A TERM PAPER WRITTEN IN PARTIAL FULFILLMENT OF THE COURSE CGB 514 (CYTOGENETICS) TOPIC: PLANT CELL ORGANELLES AND THEIR FUNCTIONS‚ THE DIFFERENCES BETWEEN THE PLANT AND ANIMAL CELL BY ONUMAEGBU BRIGHT C MOUAU/08/11351 LECTURE: DR J N EKA
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Little Celleste the cell was in the middle of his meal‚ when he thought for a minute about what he was eating‚ and how it had gotten there. The great Father Cellmas came to his mind‚ so he called out for him because he knew he could solve his answers. Since after all Father Cellmas was the man who knew all the questions you asked him about yourself. Father Cellmas was in the middle of a nap when he heard the yell of a small cell. “I wonder who is calling for me?” Father Cellmas wonders‚ and gets
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Which of these would be a valid hypothesis? Select one: a. Humans are controlled by forces beyond our understanding. b. Humans and bacteria share a common genetic code. c. Humans should help in the conservation of other animal species. d. Humans are responsible for the sustainable use of resources. e. Human history is determined by a series of supernatural events. Feedback Your answer is correct. Question 2 Incorrect Mark 0.00 out of 2.00 Flag question Question text A hypothesis
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* Pore complex: regulates entry/exit of proteins‚ RNAs and macromolecules * Nucleoplasm: the cytoplasm of the nucleus * Nuclear lamina: a netlike array of protein filaments that maintains the shape of the nucleus * Nuclear matrix: fibres extending throughout the nuclear interior * Nucleolus: rRNA is synthesized from instruction of DNA‚ proteins imported from the cytoplasm are assembled with rRNA into large and small ribosomal subunits‚ these subunits exist and assemble into a ribosome
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polypeptide containing 267 amino acids with eight alpha helices (A-E) and eight beta sheets(a-e). It contains a binding site cleft that contains amino acids Tyr 80‚ Glu 177‚ Arg 180‚ Trp 211‚ and Tyr 123. The large ribosomal subunit binds to the binding cleft‚ where a specific adenine of the ribosomal subunit is sandwiched between Tyr 80 and Tyr 123. Arg 180 protonates the N-3 of adenine and breaks the bond between the the C-1’ of the ribose sugar and the N-9 of the adenine. Cleavage between the sugar and
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Biology 12 - The Cell Part A: In ONE sentence‚ in the space provided‚ describe the function of the following organelles. Use point form. Use your own words. Paraphrase and condense the textbook definitions. DO NOT copy any definition or part of a definition. In the box to the left of each definition‚ make a sketch of the organelle. |SEE NOTES |1. cell membrane: control what goes in and out of cell‚ forms barrier with outside environment |
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7 properties of Life |Description/Examples | | |Order |All living things exhibit complex but ordered organization; structure of a pinecone | |Regulation |The environment outside of the organism may change drastically‚ but the organism can adjust its internal | | |environment keeping it within appropriate limits; temperature (shivering and sweating) | |Growth & Development |Information carried
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studying this Unit‚ you will be able to • define the biomolecules like carbohydrates‚ proteins and nucleic acids; • classify carbohydrates‚ proteins‚ nucleic acids and vitamins on the basis of their structures; • explain the difference between DNA and RNA; • appreciate the role of biomolecules in biosystem. Biomolecules “It is the harmonious and synchronous progress of chemical reactions in body which leads to life”. 14 Unit A living system grows‚ sustains and reproduces itself. The most
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