CSEC Biology: Ecological Factors
Organisms are always interacting with their environments, either through exploiting the inorganic aspects of their surroundings, or with...
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JH@Quelpr
Dec 28, 20203 min read
CSEC Biology: Vectors and Pathogenic Disease
Vectors are organisms that carry pathogens on or in their bodies without the pathogen causing any harm to them. These vectors transmit ...
958 views1 comment
JH@Quelpr
Dec 10, 20204 min read
CSEC Biology: The Human Eye
Your eyes are probably your most important sense organs. I mean, think about it: which of your 5 senses do you use the most? Definitely...
1,395 views1 comment
JH@Quelpr
Sep 10, 20204 min read
CSEC Biology: Disease
Disease refers to any condition that impairs the normal function of an organism's cells, tissues or organs that results in a decrease in...
1,266 views3 comments
JH@Quelpr
Aug 27, 20204 min read
CSEC Biology: Osmosis and Diffusion
Diffusion is the net movement of particles from an area of high concentration to an area of low concentration until they are evenly....
1,638 views0 comments
JH@Quelpr
Aug 15, 20203 min read
CSEC Biology: Species
In the classification of living organisms (taxonomy), you probably remember that a species is the most specific taxon. Apart from being...
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JH@Quelpr
Jun 17, 20202 min read
CSEC Biology: Cell Specialization
Cell specialization (also called cell differentiation) is the process by which generic unspecialized cells change into specific types of...
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JH@Quelpr
Jun 16, 20202 min read
CSEC Biology: The Kidneys and Osmoregulation
Osmoregulation is the process by which the balance of salt and water (osmotic pressure or water potential) is maintained across...
521 views0 comments
JH@Quelpr
May 23, 20202 min read
CSEC Biology: Plant and Animal Cells
Cells are the most basic living component of an organism. According to cell theory/doctrine (it's not a theory anymore- it's kinda...
1,567 views0 comments
JH@Quelpr
May 20, 20201 min read
CSEC Biology: The Kidneys
Each human has two kidneys which function as essential parts of the urinary system.
Each kidney is separated into three regions, the cortex
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JH@Quelpr
May 18, 20202 min read
CSEC Biology: Excretion
It is impossible to discuss living things without mentioning excretion. Living organisms have several chemical reactions occurring within...
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JH@Quelpr
May 16, 20203 min read
CSEC Biology: Assimilation and Blood Sugar Regulation in Humans
Do you think that you are the same person you were a month ago? You probably act the same, but the cells of your body are constantly...
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JH@Quelpr
May 15, 20203 min read
CSEC Biology: Chemical Digestion and Enzymes in Digestion
Enzymes, as you know, catalyze chemical reactions by reducing the activation energy. In your digestive tract, special organs produce enzymes
1,122 views1 comment
JH@Quelpr
May 14, 20202 min read
CSEC Biology: Enzymes
Enzymes are biological catalysts which speed up the rate at which chemical reactions occur and can be recovered, unchanged after...
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JH@Quelpr
May 13, 20205 min read
CSEC Biology: The Digestive System/Alimentary Canal
Digestion is the process by which the large, complex, insoluble food materials ingested are broken down by a series of mechanical...
1,237 views0 comments
JH@Quelpr
May 12, 20203 min read
CSEC Biology: Factors Affecting Photosynthesis, the Limiting Factor and Minerals in Plant Nutrition
Four main factors affect the rate of photosynthesis: light, water, carbon dioxide supply and temperature.
If all of these factors are...
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JH@Quelpr
May 9, 20204 min read
CSEC Biology: Types of Nutrition and Photosynthesis
Nutrition can be described as the process by which living organisms obtain food and convert it into energy required for life.
1,786 views0 comments
JH@Quelpr
May 8, 20202 min read
CSEC Biology: Seed Dispersal
The whole point of producing seeds is so that they can eventually find a suitable place to germinate and grow.
844 views0 comments
JH@Quelpr
May 7, 20203 min read
CSEC Biology: Gaseous Exchange in Flowering Plants
Plants have different needs in gaseous exchange than humans due to the fact that they photosynthesize.
294 views0 comments
JH@Quelpr
May 6, 20203 min read
CSEC Biology: Breathing and Gaseous Exchange in Humans
Gaseous exchange is the physical process by which gases move by diffusion across a surface. (Remember that diffusion is the net movement...
961 views1 comment
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