"Biology gcse revision" Essays and Research Papers

Sort By:
Satisfactory Essays
Good Essays
Better Essays
Powerful Essays
Best Essays
Page 20 of 50 - About 500 Essays
  • Powerful Essays

    Biology

    • 4229 Words
    • 17 Pages

    Planning Introduction Stomata are pores on the bottom of leaves of vascular plants. The function of stomata is to allow gaseous exchange (transpiration) between the plant and the external environment (see diagrams below). This process is carried out by the plant‚ which controls the opening and closing of stomata via the guard cells. The more stomata a leaf contains the greater the rate of gas exchange and the less water it will be able to accumulate. Stomatal pores are formed between

    Premium Photosynthesis Standard deviation Leaf

    • 4229 Words
    • 17 Pages
    Powerful Essays
  • Good Essays

    Biology

    • 2208 Words
    • 8 Pages

    Bio 93 Review Sheet: 1. Understand all the THEMES presented in the introductory lecture (lec 1). 2. What is an open system? Energy in and out‚ comes in and leaves as heat 3. What are the 4 most important elements in the human body? C‚ O‚ N‚ H 4. Draw the periodic square for Helium. How many valence electrons does it have? How do you figure this out using the periodic table? Two valence e-‚ 23He‚ all the way right full shell only holds two electrons 5. What is an isotope? How are they used

    Premium Protein Adenosine triphosphate Cell

    • 2208 Words
    • 8 Pages
    Good Essays
  • Powerful Essays

    biology

    • 1512 Words
    • 6 Pages

    Australian Ectotherms and Endotherms- temperature regulation Part A :Types of Temperature regulation 1. Write down the meaning of the terms endotherm and ectotherm. Consult a textbook if necessary. a. endotherm Endotherms are animals that can maintain a constant internal body temperature. For instance mammals and birds are true endotherms that can maintain a constant internal body temperature b. ectotherm Ectotherms are animals that are not able to regulate their body temperature or in simple

    Premium Temperature Energy Thermodynamics

    • 1512 Words
    • 6 Pages
    Powerful Essays
  • Good Essays

    Biology

    • 674 Words
    • 4 Pages

    Male System The structure and function of the human male reproductive system‚ is very similar to that of many other mammals. The male system is designed to make sperm or male gametes and is adapted to provide for the delivery of these gametes to the female to allow for fertilization. Male Reproductive System Male Reproductive System Structures 1. testes -- produces sperm and the hormone testosterone 2. scrotum -- pouch enclosing the testes keeping the sperm at an optimum temperature

    Premium Menstrual cycle Reproductive system Reproduction

    • 674 Words
    • 4 Pages
    Good Essays
  • Good Essays

    Biology

    • 1519 Words
    • 5 Pages

    FlexCon is a company that prides itself on the quality of its pistons. Lately they have been relying on suppliers for major components while manufacturing simple items with relatively small differentiation. By doing this‚ too much of their talent is going to waste leaving them with a big decision of whether to keep outsourcing or to insource. They are already heavily dependent on suppliers for critical components. The cost it takes to insource is greater than the cost to outsource but deciding to

    Premium Outsourcing

    • 1519 Words
    • 5 Pages
    Good Essays
  • Better Essays

    Biology

    • 768 Words
    • 4 Pages

    32.2.2 Segmentation allowed for redundant systems and improved locomotion Hox genes cause segmentation development 2 advantage of Hox genes Highly segmented animals‚ usually have nearly complete set of organs in theirs each segment of body. This result to less damage in their body‚ since other segment duplicate the damage segment functions Locomotion is more efficient‚ since partitions isolate the segment can contract and expand autonomously. 32.3. The Classification of Animals Animals divided

    Premium Animal Cnidaria

    • 768 Words
    • 4 Pages
    Better Essays
  • Powerful Essays

    biology

    • 1105 Words
    • 5 Pages

    BTEC Assignment Brief Programme title BTEC LEVEL 3 Applied Science Extended Diploma Unit number and title 21 Biomedical Science Techniques Assignment title Microbioology Assessor (receiving the work) Nacho Julve-Larrubia Issue date 09/08/13 Deadline(s) (two groups) Task 1 (U21:P1P2) 23/09/13 and 03/02/14 Task 2 (U21:M1) 30/09/13 and 10/02/14 Task 3 (U21:D1)07/10/13 and 24/02/14 Scenario / Vocational Context To reduce the risk of infectious disease it is important

    Premium Bacteria Tuberculosis

    • 1105 Words
    • 5 Pages
    Powerful Essays
  • Better Essays

    Revisions Questions – ACFI2005 Question One Banks invest in financial securities that they hold in their securities portfolio. A proportion of these securities may be government securities. Government securities are regarded as essentially risk-free and therefore pay a low rate of return. Why then do banks invest in this type of security? • primary source of liquidity—government securities easily converted into cash • invest short-term surplus funds—securities provide a return‚ cash does

    Premium Bond Option Finance

    • 693 Words
    • 3 Pages
    Better Essays
  • Satisfactory Essays

    GCSE Choices Booklet 2015 2

    • 9096 Words
    • 39 Pages

    GCSE Choices Booklet September 2015 R ainham M ark G rammar S chool O:\Booklets\GCSE Choices Booklet 2015.doc 1 Choices for GCSE‚ Years 10 - 11 Moving into Year 10‚ from Key Stage 3 to Key Stage 4‚ is an important stage in your educational career. This is the first time you will have had the opportunity to exercise some choice over your programme of study. Before this‚ everything you have studied will have been determined for you. Now you will have a chance to select some elements in your programme

    Premium General Certificate of Secondary Education

    • 9096 Words
    • 39 Pages
    Satisfactory Essays
  • Powerful Essays

    Education Revision Guide

    • 10453 Words
    • 42 Pages

    [pic] Education and Methods in Context The Education specification 1 The role and purpose of education‚ including vocational education and training‚ in contemporary society • Functionalist and New Right views of the role and purpose of education: transmission of values‚ training workforce • Marxist and other conflict views of the role and purpose of education: social control‚ ideology‚ hegemony; ‘deschoolers’ (Illich‚ Friere): socialisation into conformity by coercion • Vocational

    Premium Social class Sociology Middle class

    • 10453 Words
    • 42 Pages
    Powerful Essays
Page 1 17 18 19 20 21 22 23 24 50