CSEC Biology: Ecological Factors
Organisms are always interacting with their environments, either through exploiting the inorganic aspects of their surroundings, or with...
top of page
Search
JH@Quelpr
- Dec 28, 2020
- 3 min
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 ...
934 views1 comment
JH@Quelpr
- Dec 10, 2020
- 4 min
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...
1,267 views1 comment
JH@Quelpr
- Sep 10, 2020
- 4 min
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...
1,225 views3 comments
JH@Quelpr
- Aug 27, 2020
- 4 min
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....
1,453 views0 comments
JH@Quelpr
- Aug 15, 2020
- 3 min
CSEC Biology: Species
In the classification of living organisms (taxonomy), you probably remember that a species is the most specific taxon. Apart from being...
324 views0 comments
JH@Quelpr
- Jun 17, 2020
- 2 min
CSEC Biology: Cell Specialization
Cell specialization (also called cell differentiation) is the process by which generic unspecialized cells change into specific types of...
463 views0 comments
JH@Quelpr
- Jun 16, 2020
- 2 min
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...
495 views0 comments
JH@Quelpr
- May 23, 2020
- 2 min
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...
1,350 views0 comments
JH@Quelpr
- May 20, 2020
- 1 min
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
537 views0 comments
JH@Quelpr
- May 18, 2020
- 2 min
CSEC Biology: Excretion
It is impossible to discuss living things without mentioning excretion. Living organisms have several chemical reactions occurring within...
681 views0 comments
JH@Quelpr
- May 16, 2020
- 3 min
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...
293 views0 comments
JH@Quelpr
- May 15, 2020
- 3 min
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
1,102 views1 comment
JH@Quelpr
- May 14, 2020
- 2 min
CSEC Biology: Enzymes
Enzymes are biological catalysts which speed up the rate at which chemical reactions occur and can be recovered, unchanged after...
543 views0 comments
JH@Quelpr
- May 13, 2020
- 5 min
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...
1,138 views0 comments
JH@Quelpr
- May 12, 2020
- 3 min
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...
686 views0 comments
JH@Quelpr
- May 9, 2020
- 4 min
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.
1,703 views0 comments
JH@Quelpr
- May 8, 2020
- 2 min
CSEC Biology: Seed Dispersal
The whole point of producing seeds is so that they can eventually find a suitable place to germinate and grow.
742 views0 comments
JH@Quelpr
- May 7, 2020
- 3 min
CSEC Biology: Gaseous Exchange in Flowering Plants
Plants have different needs in gaseous exchange than humans due to the fact that they photosynthesize.
272 views0 comments
JH@Quelpr
- May 6, 2020
- 3 min
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...
899 views1 comment
Resource Hub: Blog2
bottom of page