AS Biology - Unit 1 ------------------------------------------------- Metabolism Metabolism is a term to describe all reaction which is taking place within a cell and is separated into two types which are * anabolic = compounds being built up * catabolic = compounds being broken down ------------------------------------------------- Water The water molecule is a molecule which is made up from 2 hydrogen atoms and 1 oxygen atom. It is bounded by 2 covalent bonds and has is polar.
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Biology- Maintaining a Balance Summary 1. Most organisms are active in a limited temperature range 1. identify the role of enzymes in metabolism‚ describe their chemical composition and use a simple model to describe their specificity on substrates Enzymes are proteins which act as catalysts in living things (they lower the amount of energy needed for a reaction‚ therefore increasing rate of reaction). Enzymes speed up reactions but are not used up by them. Enzymes catalyze only one
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HOMEOSTASIS BIOLOGY I BIO091 Prepared by: Nur Syakireen Bt. Ishak SCOPE •Definition and importance of homeostasis •Homeostatic organ •Negative and positive feedback mechanisms •Blood-glucose regulation •Thermoregulation •Osmoregulation DEFINITON & IMPORTANCE OF HOMEOSTASIS Homeostasis • Homeostasis: • is the steady state of physiological condition of the body. • it is the physiological processes by which organisms maintain a constant & balanced internal environment. • In achieving
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AP ESSAY ANSWERS: 16-20 1. Information transfer is fundamental to all living organisms. For TWO of the following examples‚ explain in detail‚ how the transfer of information is accomplished. A) The genetic material in one eukaryotic cell is copied and distributed to two identical daughter cells. B) A gene in a eukaryotic cell is transcribed and translated to produce a protein. C) The genetic material from one bacterial cell enters another via transformation‚ transduction or conjugation
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University of Greenwich Migle Mikalajunaite Student ID: 000800100 Modes of the inheritance of genetic diseases in human The body of a human is made up of cells. Even if all the cells have different functions‚ which leads to different structure of the cell‚ essentially all cells are similar: all have nucleus‚ surrounded by cytoplasm. Nucleus importance in inheritance is clear when it comes to its’ structure: in somatic cells‚ nucleus contains 23 pairs of chromosomes [ref.Genetics - Genetic inheritance
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Midterm 1 stuff (1‚ 25‚ 26‚ 27‚ 28) 2) What characterizes a prokaryotic cell? a. the lack of ribosomes b. the lack of a membrane-enclosed nucleus c. the presence of a nucleus with no DNA d. the presence of mitochondria e. having a cell wall without a cell membrane 3) Which of the following does NOT comprise a logical hierarchy of organization? a. family‚ order‚ class‚ phylum‚ kingdom b. molecules‚ cells‚ tissues‚ organ systems‚ populations c. organisms‚ populations‚ communities‚ biomes
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Axia College Material Appendix Q PopEcoLab Report |Full Name |Kelly Stellfox | |Date |May 5th 2011 | Use this document to report your findings from the PopEcoLab Exploration Experiment. The lab report consists of three sections: Data‚ Exploration‚ and Lab Summary. • Data: copy any data‚ graphs‚ charts‚ or notes that you have saved in your PopEcoLab online notebook into this section
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Unit 7 Discussion forum Question 1: Write a sentence for each of these mechanisms describing the manner in which the DNA can betransferred from one cell to another Transformation is one of three processes for horizontal gene transfer by which genetic material passes from bacterium to another. “It is the acting of altering a genetic cell resulting from putting together exogenous genetic material from its surroundings through the cell membrane(s)‚”(Wikipedia‚ 2017‚ p.1). Conjugation: This is the
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Section 1 These questions are about your investigation with DCPIP and measuring Vitamin C. You should use your own results‚ your graph/s and what you remember about doing your investigation to answer these questions. All answers should be in the spaces provided. 1 What were you trying to find out in your investigation? Complete the blank spaces in the sentence below. I was trying to find out if the ……………….……………………………………………….. ………………………………………………………………………...……… depends on the …………………………………………………………………………………………………
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BIOLOGY ASSIGNMENT WOUND HEALING SPRAY GROUP : C4 Beta 1 GROUP’S MEMBERS : (1) Tan Jing Peng (1300433) (2) Koh Wei See (1300723) (3) Sangeeta A/P Rajindran (1200225) (4) Meera A/P Kalaiselvan (1300607) (5) Thiviya Gunalan (1300633) (6) Velaraasi A/P Mathiyalagan (1300608) DATE OF SUBMISSION : 24 January 2014 CONTENT NO. Title Page 1. Introduction 1.1 Definition of wound 1.2 Type and Causes of wound 1.3 Complications 1.4 Risk
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