Topic 2 Flashcards
Functions of cell membrane
Barrier between cell and surroundings
Controls movement of substances into and out of the cell
Partially permeable
Functions of nucleus
Controls all activities in the cell
Controls how cells develop
Functions of
Cytoplasm
Place where many chemical reactions take place
Functions of chloroplast
Photosynthesis
Stores starch
Functions of cell wall
Stops cells from bursting when they fill with water
Gives shape
Allows water to pass through freely and fully permeable
Functions of vacuole
Full of water to maintain shape and firmness of cell
Stores ions and sugars
Functions of mitochondria
Release energy during aerobic respiration
Functions of ribosomes
Make proteins for the cell
Plant cell parts
Cell wall
Chloroplasts
Cell membrane
Vacuole
Nucleus
Cytoplasm
Animal cell parts
Cell membrane
Nucleus
Cytoplasm
How to calculate magnification
Image size / actual size
Where are ribosomes present
Outer surface of RER
Function or RER
The main function of RER is to package and transport proteins made by ribosomes
Vesicles function
Travel through cytoplasm and attach to cell membrane and release their contents outside the cell
Specialized cells
Root hair cells
Xylem vessels
Neurones
Red blood cells
Palisade mesophyll cells
Sperm cells
Egg cells
Functions of ciliated cells
Found in air passages in lungs
Have cilia on the surface
Cilia Move the mucus that traps dust and pathogens up to the nose and throat
Functions and adaptations of root hair cells
Absorb water and ions from the surface
Long extensions that give large surface area
Functions and adaptations of xylem vessels
Cell walls are thickened with bands of cellulose and waterproof material called lignin
Lignin allows water and ions to move from the roots to the rest of the plant to support the stem and leaves
Functions and adaptations of Neurons
Thin extensions of the cytoplasm like wires.
They are able to transmit information in the form of electrical impulses around the body
Functions and adaptations of Red blood cells
Contain haemoglobin that Carries oxygen
Flattened disc shape provides a large surface area compared with their volume
Functions and adaptations of palisade mesophyll cells
Cell wall made up of tough cellulose
Chloroplast trap light energy for photosynthesis
Large vacuole is filled with cell sap
Functions and adaptations of Sperm cells
Tail and are adapted for swimming
Head Carrie’s genetic information from male into female
Functions and adaptations of Egg cells
Bigger than sperm cells
Contain yolk as store of energy
Carries genes
Levels of organization for organs
Organ system
Organ
Tissue
Cells
Parts of digestive system
Oesophagus
Stomach
Pancreas
Liver
Intestines
Parts of excretory system
Kidneys
Ureters
Bladder
Parts of nervous system
Brain
Spinal cord
Nerves
Parts of reproductive system
Ovaries
Urerus
Vagina
What is mesophyll
The tissue that Carries out photosynthesis in leaves
What is a mesophyll
The tissue that carries photosynthesis in leaves is called mesophyll
