cell Flashcards
What’s nutrition
Obtaining food to provide the necessary substances for growth or repair
How many kingdoms are there? List all the name
5, Protactist, Prokaryote, Plant, Animal, fungi
What’s diffusion
Net movement of particle from a higher concentration to a region of their lower concentration down a concentration gradient of a result of random movement
what’s osmosis
The diffusion of water molecules from a region of their high concentration to a region of their lower concentration through a partially permeable membrane
Active transport
The movement of ions in and out of the cell through a cell membrane from a region of lower concentration to a higher concentration, using respiration
How many nutrition in total?
Carbohydrates, Protein, minerals, water, fats, vitamin, oil and roughages
what is fats?
They’re composed of carbon, hydrogen and oxygen. they are used to release a high amount of energy they make cell membrane, make the skin warm, forming a layer of fat to protect organ and store energy
What is protein? Why do we need it?
Protein are made up of Carbon, Hydrogen, Oxygen, Nitrogen and sometimes phosphorus or sulfur.
they are needed to make new body cells, growth and repair, making enzyme, building up hormones and make antibodies
Why do we need vitamin?
Essential to the formation of Collagen, increase immunity also absorbing calcium for small intestine and put it in bones-> making them healthy
What are the factors that affect diffusion?
- Temperature
- Size of molecules
- Concentration gradient ( Higher faster, shallower, slower)
- Distance the molecules move
- Surface Area