GCSE biology key words Flashcards
Define Active transport
The movement of particles moving up against the concentration gradient across cell membrane using energy.
Antibiotics
Drugs that destroy bacteria inside a body without damaging human cell.
Binary fission
Reproduction occurring in bacteria. Two identical daughter cells are produced from one parent cell.
Cellulose
A big carbohydrate molecule which make a plant and cell wall. Non-permeable
Chloroplast
An organelles where photosynthesis take place
Chromosomes
carries genetic information found inside the nucleus of the cell
Cytoplasm
Watery base gel which the organelles use of all living cells are surrounded.
Magnification
Enlargement of microscope by the state in the same resolution.
Meristems
Plant tissues consisting of active dividing cells that give rise to plan and Differentiated into new type of tissue
Differentiates
Cells specialised for specific function
Diffusion
The net movement of particles from a high concentration area to a low concentration area going down the concentration gradient.
Osmosis
Net movement of water particles going from a high concentrated area to a low concentration area down the concentration gradient
Gene
Section of DNA carry genetic information
Mitochondria
Where respiration occur in cell
Mitosis
Cell division where two identical cells are formed
Nuclear
Found in cell contains genetic information
Organ
A group of different tissues working together to carry out a particular function
Plasmid
Extra DNA found in bacteria cytoplasm
Prokaryotic
Single living cell
Eukaryotic
Group living cell
Ribosomes
Where are proteins are made
Stem cell
Undifferentiated cells with the potential to form any type of cell
Surface area to volume ratio
Small cell have large surface area to volume ratio, quicker for diffusion to happen
Tissue
A group of specialised cells working together to carry out a pacific function
