Cell And Transport Flashcards
Cytoplasm
= Liquid gel in which most of the chemical reactions take place.
Cell Membrane
Selectively-permeable, controls movement of material in and out of cell.
Cell Wall
= Support + protection of plant cell (e.g. Stops cell bursting when turgid).
Mitochondria
= “powerhouse” of the cell (produces ATP by respiration)
Nucleus
= The control centre of the cell, contains genetic information.
Ribosome
= Production of proteins
Chloroplasts
= Uses energy to make food (glucose) by photosynthesis
Permanent Vacuole
= Stores food + waste in plants
Lysosome
= Special type of vacuole that breaks down old cell parts and large molecules
ER
= Transport of chemicals and proteins within a cell
Golgi
= Modifies protein to make them functional; + transport proteins within cells
Cytoskeleton
= Support structure within cells (skeleton) made up of protein
Organ
= a collection of tissues that perform a specific function within a cell
Organism
= a living being
Organelle
= a functional structure in a cell
Organ system
= collection of organs that perform a specific function within an organism
Tissue
= collection of connected cells that perform a similar function within an organism
Cell
= the structural unit of an organism any exist as independent life
Nerve Cell (Functions)
= Transmission of nervous stimuli
Nerve Cell (Adaptations)
Very long axon Nerurotransmittor synapses Myelin Sheath (Insulation)
Ciliated Cell (Functions)
=Clearing the airways
Ciliated Cell (Adaptation)
Cilia that beat back + forth to move material
E.g. Sweep mucus with trapped dust and bacteria along to throat where it is swallowed
Sperm Cell (Function)
=Fertilisation of Egg
Sperm Cell (Adaptation)
Small with tail for movement
Many mitochondria
Acrosome with enzymes to digest egg membrane Genetic information (23 pairs)
Egg Cell (Function)
=Fertilisation
Egg Cell (Adaptation)
Large and bulky
Contain food for developing embryo - yolk(food storage) Genetic information
Red Blood Cells (Function)
=Transportation of Oxygen
Red Blood Cells (Adaptation)
Contains haemogoblin which binds oxygen No nucleus (more space for haemogoblin)
White Blood Cells (Function)
Destruction of Pathogens
White Blood Cells (Adaptations)
Some produce antibodies (large nucleus)
Some can change shape quickly to engulf bacteria
Have flexible cytoskeleton
Muscle Cells (Functions)
Contraction
Muscle Cells (Adaptations)
Long and flexible
Lots of mitochondria
Fat Cells (Functions)
Store fat source of energy
Fat Cells (Adaptations)
Little cytoplasm so that there is a lot of fat storage space
Few mitochondria
Synapse that transmits signals to optic nerve
Skin Cells (Functions)
Protection
Heat Regulation
Skin Cells (Adaptations)
Pigment to absorb UV
Hair for insulation
Palisade Cells (Functions)
Photosynthesis
Palisade Cells (Adaptations)
Have root hair to increase surface area
Large permanent vacuole
Close to xylem (water transport)
Guard Cells (Functions)
Controlling of openning and closing of stomata
Guard Cells (Adaptations)
Can take up and release water by osmosis to open and close stomata
Thickened cell wall
Rod and Cone Cells (Functions)
Photoreceptic Vision
Rod and Cone Cells (Adaptations)
Contains vision pigment that detect light
Many mitochondria
Synapse that transmits signals to the optic nerve
High Solute Outside (Plant Cell)
Plasmolysed
Normal Solute Outside (Plant Cell)
Flaccid
Low Solute Outside (Plant Cell)
Turgid
High Solute Outside (Animal Cell)
Crenated
Normal Solute Outside (Animal Cell)
Normal
Low Solute Outside (Animal Cell)
Lysed
Same Concentration
Isotonic
Lower Concentration
Hypotonic
Higher Concentration
Hypertonic