3 Questions with Detailed Answers
The cell is... - ANSWERSThe most basic unit of structure and function in the body
A cell is measured in - ANSWERSMicrometers
Cells that have developed specialized characteristics are... - ANSWERSDifferentiated
A composite cell shows the following components found in most cells... -
ANSWERSNucleus, cell membrane, and cytoplasm
Cell membrane (plasma membrane) - ANSWERSThe outer boundary of the cell,
selectively permeable, signal transduction
Selectively permiable - ANSWERSRegulates entry and exit of substances
Signal transduction - ANSWERSPermits cell to receive and respond to messages
Cell is made up of a - ANSWERSPhospholipid bilayer, hydrophobic tails form interior,
hydrophollic heads form surface
Hydrophobic - ANSWERSNOT water-soluble
Hydrophollic - ANSWERSWater-soluble
Cytoplasm - ANSWERSNetwork of membranes and organelles suspended in cytosol
Cytosol - ANSWERSFluid portion of the cell
Organelles - ANSWERSTiny solid structures in cytosol
Ribosome - ANSWERSTiny spherical structures composed of DNA and protein. Provide
structural support and enzyme activity to link amino acids in protein synthesis
Rough Endoplasmic Reticulum (Rough ER) - ANSWERSContains ribosomes
Smooth Endoplasmic Reticulum (Smooth ER) - ANSWERSDoes NOT contain
ribosomes.
Vesicles - ANSWERSStore/transport substances. Larger _________ that contain mostly
water form when part of the cell membrane folds inward and pinches off, bringing