Cell parts + functions Flashcards
Nucleus
-control center of the cell
-double membrane (nucleur membrane)
- contains: chromosomes and nucleolus
Nuclelous
-most cells have 2 or more
-directs the synthesis of RNA
-is what forms ribosomes within the nucleus
Lysosomes
-contains digestive enzymes
-aid in cell renewal
-break down old cell parts
-digests invanders
Ribosomes
carry messaes around the cell
-to/ from the nucleus
Vacuole
-membrane-bound storage sacs
-stroes: water, food, waste
- more common in plants
-releases waste out of the plant
Cell Wall
-found in plants, fungi, and many protists
-surrounds the cell membrane
-rigid, rough layer
-allows for the plant to grow taller
-has pores so that materials can pass through
Cell Membrane
-protective barrier for cell contents
-double layer of phosphdlipids and proteins
Chlrorplast
-derived from photosynthetic bacteria
-solar energy capturing organelle
-only in plants cells
-gives the plants its color or green pigament
Smooth ER
carries smooth type stuff such as lipids
Rough ER
-ribosomes connect to this
Golgi Apparatus
-involved in synthesis of plant cell wall
-packagaing and shipping station of cell to be transported to needing area
DNA
-hereditary material
-chromosomes: DNA, proteins, form of cell division
-chromatin
Cytoplasm
-clear, thick- like, gel consistence
-components of cytoplasm
+interconnnected filaments and fibers
+ fluid=cytosol
+ organelles (not nucleus)
+ storage substances
+ shock absobs
Mitchondria
-break down fuel molecules (cellular respiriation)
+glucose
+fatty acids
-release energy
+stored as ATP
-powerhouse of the cell
Cells
-smallest living unit
-most are microscopic
-first identified by Robert Hooke