Number Of Enzymes

The Plant Cell
The Plant Cell
The Plant Cell Cell Wall Size: Around 1? Basic Function: * Hold the shape of the cell. * Strengthen the cell. Covering the cell membrane of the plant cell, there is the cell wall. The cell wall is composed of two layers of rigid, hard cellulose embedded in compounds like pectin and lignin. Pores in the cell wall allow molecules to pass through. The cell wall has two parts. The primary cell wall is formed during the growth of the cell. After the cell has stopped growing, a secondary cell wall for
Genetic Engineering, History And Future
Genetic Engineering, History And Future
Genetic Engineering, history and future Altering the Face of Science Science is a creature that continues to evolve at a much higher rate than the beings that gave it birth. The transformation time from tree-shrew, to ape, to human far exceeds the time from analytical engine, to calculator, to computer. But science, in the past, has always remained distant. It has allowed for advances in production, transportation, and even entertainment, but never in history will science be able to so deeply af
Theory Of Evolution
Theory Of Evolution
Theory of Evolution TABLE OF CONTENTS Page INTRODUCTION ............................................... 2 DARWINIAN THEORY OF EVOLUTION .............................. 4 THE THEORY OF BIOLOGICAL EVOLUTION: CONTRIBUTING ELEMENTS ....................... 7 WALLACE'S CONTRIBUTIONS ................................... 13 HARDY-WEINBERG PRINCIPLE .................................. 15 COMPARISON: LAMARCK vs. DARWIN ........................... 16 DARWIN'S INFLUENCES .......................................
Respiratory System
Respiratory System
Respiratory System Respiratory System The main organs of the respiratory system are the lungs, trachea, bronchioles, mouth, nose and epiglottis. The accessory organs are the bladder, lungs, large intestine, kidney and pancreases. Anatomy and Physiology of the Respiratory System The respitory system tract is divided into the upper and lower regions. The upper respoitory tract includes the nasal passages, sinuses, and the throat area where the epiglottis and larynx are located. The lungs are a pai
Enzymatic Reaction in a Reaction
Enzymatic Reaction in a Reaction
The purpose of this part of the experiment is to find out the course of an enzymatic reaction in a reaction. In order to do this, a measurement of the amount of substrate disappearing over time increments of 10, 30, 60, 90, 120, 180, and 360 seconds had taken. In this experiment we see that as time progressive the enzymatic rate lowered. The highest rate is the first in the first time interval (0-10) . It was the highest because iit had the highest catalysis amount and the most amount of H2O2 to
Topic 2 IB TB questions and answers
Topic 2 IB TB questions and answers
The answers/markschemes are below each question. You can reorganize the document so that you do not see the answer/markschemes when you answer the questions. 1. Outline the process of endocytosis. (Total 5 marks) (Annotated diagram illustrating the process may be used to gain some or all the marks.) the mechanism whereby cells take in solids and / or solutions; involves the formation of vesicles; infolding of cell membrane; called phagocytosis when solids / organisms are engulfed; phagocytosis i
IB Biology syllabus  definitions
IB Biology syllabus definitions
IB Biology syllabus definitions * Definition given in IB Biology syllabus TOPIC WORD DEFINITION Topic 1: Cells Organelle A discrete structure within a cell, with a specific function.* Tissue A group of cells similar to each other, along with their associated intercellular substances, which perform the same function within a multicellular organism. Organ A group of tissues which work together as a single unit to perform a particular function within a multicellular organism. Organ system A group
Effect of Different Concentrations of Enzyme on Enzyme Activity
Effect of Different Concentrations of Enzyme on Enzyme Activity
Mashrek International School Effect of Different Concentrations of Enzyme on Enzyme Activity What is the effect of changing the concentration of lipase enzyme on the enzyme activity in catalyzing lipids in whole milk? Naim Al-Haj Ali MYP Year 4B  Aim: To investigate the effect of changing the concentration of lipase enzyme (2%, 4%, 6%, 8%, 10%) on the rate of enzyme activity in catalyzing lipids in whole milk (5cm3), by measuring the pH of the solution before and after adding the enzyme, keepin
Multi Media Task: Part ATable A: Organs of the dig
Multi Media Task: Part ATable A: Organs of the dig
Multi Media Task: Part ATable A: Organs of the digestive system and their functions Organ of the digestive system Physically help the digestive system Chemically help the digestive system digests foods Other Tasks Mouth The mouth mechanically breaks down the food by using mastication. The tongue rolls the food within the mouth making the mastication process fast and easier, it also breaks the food creating a larger surface area for the salivary amylase to then react to. The saliva within the mo
Conclusions - concentration affecting lipase
Conclusions - concentration affecting lipase
Conclusions - concentration affecting lipase It is clear from the graphs, tables and statistical processes carried out that generally, increasing the volume of lipase increases the change in pH of the solution and also the rate of change of the pH of the solution. This has been proved by the increasing values of standard deviation for higher volumes of lipase, the generally larger maximum change in pH for the higher volumes of lipase and also by the shape and gradients of the graphs drawn. Alth