Human bio Flashcards
Digestion
Break down of food molecules
Nutrition
Obtaining food molecules
Absorption
Transport of molecules into cell
Synthesis
Making complex substances from simple substances
Respiration
Release of chemical energy from the cell
Excretion
Release of waste materials
Egestion
Elimination/release of nondigested substances
Secretion
Release of substances from the cell that influences activities outside the cell
Movement
Cellular contraction
Response
Action or reaction provoked by a stimulus
Reproduction
Increase in cell number or size
Ribosome
Protein synthesis & manufacture proteins
Microtubule
Forms spindle makes up centrioles
Microfilament
Cell movement and cellular connections
Microbody
Contains enzymes
Hyaloplasm
Fluid portion of the cell
Perixosome
Stores enzymes to protect us; makes hydrogen peroxide
Nucleus
Control center of the cell
Nucleolus
Synthesizes MRNA and RNA
Nuclear membrane
Semipermeable cover the surrounds the nucleus; lets out RNA
Nucleoplasm
Stuff inside the nucleus; chromatin material(DNA)
Flagellum
Protection that aids in movement
Microvilli
Increase in the surface area of the membrane
Nuclear pore
Openings in the nuclear membrane
Chromatin
Thread like structures that form chromosomes
Lysosomes
Contain digestive enzymes
Centrosome
Contains centriole
Centriole
contains microtubules
Vacuole
Cellular storage
Cytoplasm
Environment inside the cell
Cilia
Hair-like structures that move other substances
Mitochondrion
Powerhouse of cell; produces ATP cellar respiration
Pinocytotic vesicle
Opening in the membrane that allow more substances in
Endoplasmic reticulum
Layers of flattened vesicles in which protein may be transported
Golgi complex
Layers of flattened vesicles that store proteins
Cell membrane
Semi permeable protective layer around the cell
Passive transport
Kinetic energy to move substances comes from molecular motion
Examples of passive transport
- diffusion
- osmosis
- facilitated diffusion
- filtration
Active transport
Energy to move stuff comes from the cell
Examples of active transport (exocytosis)
Exocytosis: moves stuff out of the cell
- secretion
- excretion
- Egestion
- physiological pumps
Examples of active transport (endocytosis)
Endocytosis: moves stuff into the cell
- phagocytosis
- pinocytosis