NST1502_ASSIGNMENT_1.

NST1502_ASSIGNMENT_1. Detailed working, solutions, memo, notes & explanations. CONTENTS Introduction ............................................................................................................................................................ 2 Question 1 .............................................................................................................................................................. 2 1.1.1. Scientific method ...................................................................................................................................... 2 1.1.2. Hypothesis ................................................................................................................................................ 2 1.1.3. Theory ....................................................................................................................................................... 2 1.1.4. Independent variable................................................................................................................................ 2 1.1.5. Dependent variable. ................................................................................................................................. 2 1.2. The steps of the scientific method. ................................................................................................................. 3 Step 1: Observation. ........................................................................................................................................... 3 Step 2: Hypothesis .............................................................................................................................................. 3 Step 3: Experiment ............................................................................................................................................. 3 Step 4: conclusion ............................................................................................................................................... 3 Question 2 .............................................................................................................................................................. 3 Question 3 .............................................................................................................................................................. 4 3.1. Prokaryotic and eukaryotic sells .................................................................................................................. 4 Diffusion: ............................................................................................................................................................ 4 Facilitated diffusion ............................................................................................................................................ 4 Active transport .................................................................................................................................................. 4 Endocytosis ......................................................................................................................................................... 4 Exocytosis ........................................................................................................................................................... 4 3.3. Fluid Mosaic model ...................................................................................................................................... 5 Question 4 .............................................................................................................................................................. 5 Question 5 .............................................................................................................................................................. 6 5.1. The Krebs Cycle ............................................................................................................................................ 6 5.2. Characteristics of phylum Porifera .............................................................................................................. 6 Question 6 .............................................................................................................................................................. 6 6.1. Vascular plants ............................................................................................................................................. 6 Non-Vascular plants ............................................................................................................................................ 6 6.2. Function of vascular tissue. ......................................................................................................................... 6 6.1. other names for Non-Vascular plants and Function of vascular tissue. ...................................................... 7 Question 7 .............................................................................................................................................................. 7 7.1.1. Aim ............................................................................................................................................................ 7 7.1.2 Hypothesis ................................................................................................................................................. 7 7.1.3. Materials and apparatus ........................................................................................................................... 7 Marushke Botha Student nr: Unique number: 2 7.1.4. Method ..................................................................................................................................................... 7 7.1.5. Results ...................................................................................................................................................... 8 7.1.6. Conclusion ................................................................................................................................................ 8 Conclusion .............................................................................................................................................................. 8 References .............................................................................................................................................................. 9 INTRODUCTION Natural science is apart of our every day life. In order to teach it, you must understand the full concepts and how they relate with each other. QUESTION 1 1.1.1. SCIENTIFIC METHOD Scientific method refers to the procedure used to acquire knowledge and data to analyse a scientific problem or question. This knowledge and data involve observation and experimenting a series of tests to create a valuable explanation.