Flashcards in Quiz-anatomy Deck (27)
All substances (organelles & cytosl)
Only fluids, gel-like, viscous
Cellular support and movement
Lipid synthesis, detoxification
Packages proteins and lipids
Digest bacteria, worn-out organelles
Forms mitotic spindle
Short-hair like structures on the surface of some cells
Long cell projection used to propel sperm cells
Chemical substances produced by cells; not bounded by a membrane
List threes principle parts of a generalized animal cell.
Plasma membrane, cytoplasm, nucleus
Name the two major types of molecules that make up the plasma membrane.
Phosphorus & proteins
Which of the the two makes up the majority of the membranes framework?
These proteins extend across the plasma membrane, helping to move substances in and out of the cell, acting as recognition sites for hormones, or serving as enzymes to speed reactions.
These proteins are loosely attached to the surfaces of the cell membrane, serving as cytoskeleton anchors or cell identity markers.
What do mean when we say the cell membrane maintains an electrochemical gradient?
Difference in change
The movement of substances across a cell membrane using cellular energy (ATP)
The movement of substances across a cell membrane using no cellular energy
Net movement of any substance (such as cocoa powder in hot milk) from region of higher concentration to region of lower concentration; membrane not required
Same as (a) except movement is across a semipermeable membrane with help of a carrier; ATP not required
Net movement of water from region of high water concentration. (Such as 2% NaCl) to region of lower concentration (such as 10% NaCl) across semipermeable membrane: important in maintaining normal cell size and shapes
Movement of molecules from high-pressure zone, as in response to force of blood-pressure.
A solution that is hypertonic to RBCs contains ____ solute particles and ____ water molecules than blood