WebNov 26, 2014 · The compound on which an enzyme acts is the substrate. 3. Enzymes Speed up chemical reactions Activation Energy with enzyme Activation Energy without enzyme Substrate Products: Energy Time • By lowering the activation energy needed to start the reaction. 4. Explain why life cannot exist without enzymes. Webiv) Explain the inheritance of ABO blood groups. in humans blood groups are determined by three alleles i.e. A,B and O. it is only possible to have two genes at a time. genes A and B are co-dominant while gene O is …

QUIZ 3 CHAPTER 3 BIOLOGY FORM 4 Biology - Quizizz

WebDec 9, 2014 · Recall concept on “Cell surface membrane” which is found in all living cells Partially-permeable membrane that forms a boundary between the cytoplasm of the cell and the outside. Controls the passage of substances (small molecules) entering and exiting the cell. 33. MOVEMENT THROUGH THE PLASMA MEMBRANE. 34. WebSep 27, 2024 · Study the diagram below and answer the following questions. Identify the type of circulatory system shown in diagram above (1mk) Give a reason for your answer in (a)i) above (1mk) Name the parts labelled X, Y and Z (3mks) X. Y. Z. Explain the disadvantage of having the above circulatory system in the animals (2mks) cube root of 141

BIOLOGY NOTES - Teacher.co.ke

WebJul 21, 2024 · Questions. State the difference between Lamarckian and Darwinian theories of evolution. Two populations of the same species of birds were separated over a long period of time by an ocean. Both populations initially fed on insects only. WebDownload all the high school Biology Notes, for form 1, form 2, form 3, and form 4. Included also are biology essay questions and answers. WebTHE MOST COMMON FORM OF ALBINISM, A TOTAL LACK OF SKIN PIGMENT, IS DUE TO A RARE RECESSIVE GENE LOCATED ON CHROMOSOME 11. TWO PARENTS ARE NORMALLY PIGMENTED, BUT EACH PARENT HAS AN ALBINO SIBLING. NO ONE ELSE IN THEIR FAMILY IS ALBINO GOING BACK AT LEAST TWO GENERATIONS. … east coast firewood moncure nc