Introduction to the cell both living and nonliving things are composed of molecules made from chemical elements such as carbon, hydrogen, oxygen, and nitrogen. The term biology comes from two greek words bios means life and logos means knowledge. Visit the websites given so as to find out more on chapter d3. Biology tomorrow belongs to those who prepare today. White blood cells are part of the immune system, they play a big role in protecting the body by killing bacteria which cause disease, also known as pathogens.
Biology in general and cell biology in particular depend heavily on both chemistry and physics. Download pdf version of all available notes here gce. I biology i lecture outline 5 the cell dyersburg state community. Anaphase half of the chromosomes are pulled one way and vice versa. Biology notes form 3 this document was downloaded from. Remember, good results comes with putting in effort. The organization of these molecules into cells is one feature that distinguishes living things from all other matter. Understand the basics of plant cell expansion and morphogenesis 3. A cell is the smallest unit that can carry on all the processes of life. This will give the necessary preparation in understanding my other notes in molecular cell biology and cellular bioengineering.
Molecular genetics page 4 of 23 the structure of dna dna deoxyribonucleic acid. Adapted from holt biology 2008 your turn with a partner, read the chapter 3 section 3 active reading the chemistry of cells. Video technology make it possible to watch cell growth, division and development. And especially when you think of things on the molecular, or the atomic scale. Choose from 500 different sets of sec 3 science biology flashcards on quizlet.
All teaching programs beginning, with psle and working through from secondary 1 through to secondary 3 and beyond comprise topic modules. Cells are an organisms basic unit of structure and function. These have been made according to the specification and cover all the relevant topics in the syllabus for examination in mayjune as well as octobernovember and march. Secondary 3 pure biology 2016 free test papers 2019. Thus biotechnology is defined as the industrial application of living organisms and their biological processes. When the cell reaches full size, a secondary cell wall may form. Cell notes for junior high school and beginning high school biology students. Cell structure and function biology 83 notes module 1 diversity and evolution the plasma membrane is made of proteins and lipids and several models wereof life proposed regarding the arrangement of proteins and lipids. They are completely different in function than red blood cells.
Section of dna containing required gene from human chromosome is identified. Learn vocabulary, terms, and more with flashcards, games, and other study tools. Section 31 the history of the cell theory and microscopes. Based on biology matters textbook and my schools nygh notes contains drawn diagrams or from the textbook or internet concise for easy memorisation i summarised the textbook and my schools notes into point form. The chemistry notes cover topics such as chemical bonding, qualitative analysis testing for cations, anions, and gases, organic chemistry, acids, bases, and salts, electrolysis, etc. The cancerous cells can invade and destroy surrounding healthy tissue, including organs. White blood cells are one of the substances floating in the blood plasma.
Biology upper secondary selfmade notes pdf still available. Nutrition is the process of taking in food and converting it into living matter. Feedingingestion food taken into the body digestion large food molecules broken down into smaller soluble molecules that can be absorbed into. The duration of the bachelor of science degree spans over a period of 3 years. Largest cell organelle present in eukaryotic cells it is usually spherical it has double layer nuclear membrane with nuclear pores it has transparent granular matrix called nucleoplasm, chromatin network composed of dna and histone proteins it also has a spherical body called nucleolu s. The fluid mosaic model proposed by singer and nicholson 1972 is widely accepted. Free pure physics, chemistry, geography and social studies revision notes.
Bones collection of cells that secrete calcium salts. Specialised cells that perform similar functions are grouped together as tissues. Providing study notes, tips, and practice questions for students preparing for their o level or upper secondary examinations. Each document contains the questions in separate sections for sections a, b and c of the exam papers. The table on page vi shows which chapters cover the modules in your specification, so only revise those topics you will be examined on.
Bachelor of science course is offered in many different disciplines to train candidates in a particular field. Biology is a natural science concerned with the study of life and living organisms, including their structure, function, growth, evolution, distribution, and taxonomy. The best biology o level notes o and a level notes. Biology notes for igcse 2014 all in one biology notes. Biology upper sec notes pdf biology matters, books. All organisms are made of cells, organisms are made of several organ systems, each organ system contains several organs, each organ contains several tissues. The idea that all living things are made of cells was put forward in about 1840 and in 1855 came cell. The questions are separated into higher and ordinary level questions and by examination year. The most basic similarity is that all living things are composed of one. Long molecule made up of two 2 strands of nucleotides bound together in the shape of a double helix twisted ladder found in the nucleus of cells.
Plasmid is extracted from bacteria cell and human gene inserted into it. This will allow you to digest the information better and then reorganize the information in a way that you yourself can understand better. Biotechnology 294 biology notes module 5 emerging areas in biology 30. Lecture 1 introduction to cells cell theory discovered by robert hooke coined the term cell. The major components of the cell are 1 cell membrane, 2 cytoplasm, and 3 nucleus. Whats in this book 1 2 learn and remember what you need to know. Cell is the fundamental, structural and functional unit of all living.
But just to have an appreciation also for how small cells are even though weve just described these red blood cells and these tcells theres these kind of worlds unto themselves. Latex or vinyl gloves must be worn while conducting experiments or handling reagents or organisms 6. Simply, cells and organisms follow all the laws of the physical universe, and biology is really just the study of chemistry in systems that happen to be alive. Learn sec 3 science biology with free interactive flashcards. Long hair must be tied back and kept away from flame 5. Biology notes chapter 6 section 1 your body is made up of many types of specialized cells, but all of them can be divided into two major categories 1. Cell biology and genetics notes on all lectures 091161. Lhs cell biology unit summary notes cells which need a lot of energy have a high number of mitochondria e.
Introduction to the major components of plant cells and how they differ from animal cells 2. Animal feed by taking in complex organic matter holozoic nutrition. You can find notes and exam questions for additional math, elementary math, physics, biology and chemistry. Rod cells become bleached in bright light sunny and bright days rod cells contain the same pigment which absorbs a wide range of wavelengths of light, and therefore do not distinguish between a variety of different colours monochrome vision rod cells produce undefined images as many rod cells synapse with one bipolar neuron.
The questions by topic are organised according to syllabus unit. Im not a biology student i never quite did well in biology may be because i didnt have your notes lol i want to ask you for permission to use your notes only one pdf to create an interactive ebook which i assure you will not be used for commercial purposes nor profit making, etc. In animals, nutrition consists of the following processes. It is a living membrane, outermost in animal cells but internal to cell wall in plant cells. Introduction to cell biology, includes systems analysis, cell theory, characteristics of living things as well as compound light microscope use, and structure and function of cell organelles. Understand current ideas for how mechanical forces affect the cytoskeleton and cell wall biology. Unicellular organisms organisms with single cell, capable of. Telophase cell membranes closes in and splits the cell. Course notes biology 12 core notes cancer is a condition where cells in a specific part of the body grow and reproduce uncontrollably. Properties and uses of microorganisms microorganisms can be used in industry to make products useful for humans. Best collection of free downloadable 2008 to 2019 primary, secondary and jc test papers ca1, sa1, ca2, sa2 from top schools in singapore. Whether your child is sitting a test in chemistry, physic, english, emaths, amaths, or biology, the way that they approach their task is the most important key indicator for success.
Introduction to the cell biologymad alevel biology. Biology notes for olevel cell structure and organization. These make up most of your body tissues and organs 2. Chapter notes the cell theory although different living things may be as unlike as a violet and an octopus, they are all built in essentially the same way. Here are all the pdf versions of the notes that are available on this site. Accordingly biology has been divided into two branches. Cells are the basic units of structure and function in an organism. Resources for top a1 candidates taking the 2020 singaporecambridge gce o level exam. Lecture notes for methods in cell biology tulane university. The cell is the lowest level of organisation that can perform all activities required for life. Spills or broken glass must be reported immediately 7. A compilation of chemistry notes for o level or gcse.