cells and systems Flashcards
Animal cell
Cell membrane, cytoplasm, vacuoles, and nucleus.
plant cell
Cell membrane, cytoplasm, vacuoles, nucleus, cell wall, chloroplasts.
Photosynthesis
Absorbs light energy, absorbs water from roots, carbs form and oxygen is released.
Diffusion
The movement of particles in liquids and gases from an area of higher concentration to lower concentration.
Osmosis
The diffusion of water from a semipermeable membrane.
how water moves through a cell
Water moves across cell membranes by diffusion, in a process known as osmosis. with the solvent (water, for example) moving from an area of low solute (dissolved material) concentration to an area of high solute concentration.
Transpiration
The loss of water from a plant from evaporation.
Permeable and semi-permeable membranes
Permeable membrane- A membrane that lets all materials cross.
Semi permeable membrane- Somethings can be crossed.
Circulatory System
Circulates blood, nutrients, and oxygen throughout the whole body.
Includes: Heart, blood and blood vessels.
Respiratory System
The lungs and respiratory system allow oxygen in the air to be taken into the body, while also letting the body get rid of carbon dioxide in the air breathed out.
Includes: Trachea, pharynx, larynx, mouth, nose, brochi, lungs, diaphragm and the alveolus.
Digestive system
Digestion works by moving food through the GI tract. Digestion begins in the mouth with chewing and ends in the small intestine.
mouth, esophagus, stomach, small intestine, large intestine, and anus. liver, pancreas, and gallbladder
Excretory system
Filtering waste materials from the blood and getting out extra wastes.
Includes: Kidneys, uterus, urinary, and the urethra.
Nervous System
is involved in receiving information about the environment around us and generating responses to that information.
Includes: Brain, spinal cord, nerves, sensory organs, eyes, ears, tongue, nose and skin.
Single cell vs. multicellular organisms
Single cell- There is only one cell.
Multicellular cells- 2 or more cells.
advantages of being a multicellular organism?
They adapt to any environment Live longer Bigger More energy. Reproduce Responds to the environment Obtains and gains more food.
