Cells and Their Organelles
At what level of organization does life begin?
What surrounds all cells?
What is meant by semipermeable?
Allowing some substance to pass into the cell and blocking
What two things make up the cell membrane?
Phospholipids and Embedded Proteins
The cell membrane is also called the?
Centrioles are found inside of what type of cells?
What additional layer is found around the outside of plant and bacteria?
Centrioles are found in the center of what and how do they help?
Centrosome, divides and the two parts move to the opposite sides of the dividing cell.
Where is DNA found inside a cell?
What cell process is controlled by the nucleus?
DNA coils tightly during division and assembles into visible?
Where are organelles located?
Where are proteins made in a cell?
Do all cells need ribosomes?
The process of making proteins is called?
How does rough ER differ from smooth ER?
Cover by ribosome
Rough ER is connected to what membrane and ER?
Proteins made by rough ER travel to the Golgi in sacks is called what and what does Golgi do?
Its called Cistern, Golgi modifies and package
Give three jobs for smooth ER?
Lipid & Cholesterol metabolism, Detoxification, Calcium Storage
What is the function of cell membrane?
Support, protection, diffusion
What is the function of cell wall?
Thin, flexible barrier around a cell: control what enter & leaves the cell
What is the function of cytoplasm?
A jellylike fluid inside the cell in which the organelles are suspended
What is the function of ribosome?
What is the function of Golgi?
Apparatus modifies, sorts, packages lipid & proteins
What is the function of rough ER?
What is the function of smooth ER?
Digestive & Detoxification
What is the function of mitochondria?
ATP synthesis by aerobic respiration
What is the function of nucleus?
Control center, contain DNA for making protein
What is the function of nucleolus?
Produce ribosomes (which produce protein) found in nucleus
What is the function of nuclear membrane?
Regulate passage of materials in & out of nucleus
What is the function of centrosome?
Form spindle fiber, divides during mitotic division
What is the function of lysosomes
What is the function of microtubules?
Determine overall shape of cell & distribution of organelles
What is the function of nuclear pores?
Pathway exchange of materials between nucleus & cytoplasm