"Stpm biology essay" Essays and Research Papers

Sort By:
Satisfactory Essays
Good Essays
Better Essays
Powerful Essays
Best Essays
Page 9 of 50 - About 500 Essays
  • Powerful Essays

    biology

    • 5542 Words
    • 23 Pages

    Big Idea 2 Biological systems utilize free energy and molecular building blocks to grow‚ to reproduce and to maintain dynamic homeostasis. Living systems require both free energy and matter to maintain order‚ grow and reproduce. Organisms employ various strategies to capture‚ use and store free energy and other vital resources. Energy deficiencies are not only detrimental to individual organisms; they also can cause disruptions at the population and ecosystem levels. Biological systems must both

    Premium Osmosis Photosynthesis Cell

    • 5542 Words
    • 23 Pages
    Powerful Essays
  • Powerful Essays

    Biology

    • 3875 Words
    • 16 Pages

    Biology Exam Review Unit One – Biochemistry What is an isotope? Isotope - An isotope is all atoms of the same element that have the same number of protons‚ but they may have different numbers of neutrons in the nucleus. - This means that all atoms with the same atomic number can have different atomic masses. - Because they have the same number of protons and electrons‚ they behave exactly the same in chemical reactions. Radioisotope - The nuclei of some isotopes of an element are unstable

    Premium Atom Protein DNA

    • 3875 Words
    • 16 Pages
    Powerful Essays
  • Powerful Essays

    Biology UNIT 5 Essay Plans

    • 2666 Words
    • 11 Pages

    understanding of living organisms 8. How bacteria affect human lives 9. Energy transfers which take place inside living organisms. 10. How the structure of proteins is related to their functions 11. The structure and functions of carbohydrates 12. Cycles in biology 13. The movement of substances within living organisms. 14. The biological importance of water. 15. How the structure of cells is related to their function. 16. Heat and many different substances are transferred within the body and between the body

    Premium DNA Gene Cell

    • 2666 Words
    • 11 Pages
    Powerful Essays
  • Good Essays

    Biology Unit 8 Essay

    • 896 Words
    • 4 Pages

    Unit 8 Essay Prompts Sorry guys that this is so late... I just had to go to sleep. Anyways‚ this guide is to help inspire you about the essay prompts and provide a little info‚ you’ll have to do additional research on your own. Also‚ I’ll try to bring up better examples. 1) Explain and illustrate with one specific example of each of the following concepts: a) competitive exclusion (Gause’s principle) 1. definition = states that when two species with the same resource needs are put

    Premium Essay Writing Critical thinking

    • 896 Words
    • 4 Pages
    Good Essays
  • Better Essays

    biology

    • 6022 Words
    • 25 Pages

    Vol 455 | 11 September 2008 | doi:10.1038/nature07271 ARTICLES Strigolactone inhibition of shoot branching ` Victoria Gomez-Roldan1‚ Soraya Fermas2‚ Philip B. Brewer3‚ Virginie Puech-Pages1‚ Elizabeth A. Dun3‚ Jean-Paul Pillot2‚ Fabien Letisse4‚ Radoslava Matusova5‚ Saida Danoun1‚ Jean-Charles Portais4‚ ´ Harro Bouwmeester5‚6‚ Guillaume Becard1‚ Christine A. Beveridge3‚7*‚ Catherine Rameau2* & Soizic F. Rochange1* A carotenoid-derived hormonal signal that inhibits shoot branching in plants

    Premium Plant Seed Fungus

    • 6022 Words
    • 25 Pages
    Better Essays
  • Good Essays

    Biology Chapter 10 Essay

    • 3434 Words
    • 14 Pages

    Biology‚ 7e (Campbell) Chapter 13: Meiosis and Sexual Life Cycles Chapter Questions 1) What is a genome? A) the complete complement of an organism’s genes B) a specific sequence of polypeptides within each cell C) a specialized polymer of four different kinds of monomers D) a specific segment of DNA that is found within a prokaryotic chromosome E) an ordered display of chromosomes arranged from largest to smallest Topic: Concept 13.1 Skill: Knowledge 2) Which of the following

    Premium Genetics Gene DNA

    • 3434 Words
    • 14 Pages
    Good Essays
  • Powerful Essays

    Biology synoptic

    • 732 Words
    • 4 Pages

    A2 BIOLOGY ESSAYS – The Synoptic Essay The essay titles will be very general and students are expected to draw on relevant information from the complete specification to illustrate their understanding of general principles. They may wish to include detailed knowledge of topics from any of the AS and A2 units. They may also gain credit for including material which stems from wider reading and reflects greater depth of knowledge. The choice of material to include lies entirely with the student

    Premium DNA Biology Organism

    • 732 Words
    • 4 Pages
    Powerful Essays
  • Good Essays

    Biology

    • 657 Words
    • 2 Pages

    Virtual Lab Enzyme Controlled Reactions Worksheet Which of the following does NOT apply to an enzyme Catalyst Inorganic Protein All of the above apply to an enzyme When an enzyme catalyzes a reaction Substrate(s) bind in the active site Products bind in the active site The shape of the enzyme remains unchanged The enzyme is consumed by the reaction Which of the following would interfere most with the ability of an enzyme to catalyze a reaction Reduced concentration of substrate available Reduced

    Premium Enzyme Chemical reaction PH

    • 657 Words
    • 2 Pages
    Good Essays
  • Good Essays

    Biology

    • 3391 Words
    • 25 Pages

    Paper 1 Chapter 1: Cell structure May/June 03 1 An actively growing cell is supplied with radioactive amino acids. Which cell component would first show an increase in radioactivity? A Golgi body B mitochondrion C nucleus D rough endoplasmic reticulum 2 Which pair of organelles has internal membranes? A chloroplasts and mitochondria B chloroplasts and nuclei C mitochondria and ribosomes D nuclei and ribosomes 3 Which combination is found in a prokaryotic cell? Endoplasmic reticulum DNA RNA Nucleus

    Free Bacteria Cell DNA

    • 3391 Words
    • 25 Pages
    Good Essays
  • Good Essays

    Biology

    • 717 Words
    • 3 Pages

    1.There are three basic types of amino acids: 1) those with electrically charged side chains; 2) those with polar side chains; and 3) those with nonpolar side chains. A) True B) False2.All amino acids share a common “backbone”. Which chemical component (or components) is part of the backbone of an amino acid? A) An amino group (NH2) B) A carboxyl group (COOH) C) A hydrogen atom D) A central carbon atom that is commonly called an α-carbon atom E) All of the above3.Suppose that we link 100

    Premium Protein Amino acid

    • 717 Words
    • 3 Pages
    Good Essays
Page 1 6 7 8 9 10 11 12 13 50