Define interstitial fluid, indicating whether it is inside or outside cells (intracellular or extracellular).
Interstitial fluid is extracellular fluid outside the circulatory system and the cells.
Cell membranes are mainly constructed from __________.
lipids and proteins
The space that is surrounded by the tissue wall of hollow organs is known as the
lumen
The watery medium that surrounds a cell is known as
extracellular fluid.
Two rows of phospholipids that form a sheet with tails facing each other and heads on either side facing the aqueous solution
bilayer
A double membrane droplet containing proteins along the center and an aqueous core
liposomes
Droplets of phospholipids containing a lipid core/center
micelles
Molecules) that are inserted between the phospholipids of the cell membrane
functions including immune responses, cell-cell communication, transport of large molecules (i.e., glucose), and structural stability.
Structures within and around the Cell Membrane
Transmembrane Protein
an ability to transport ions, nutrients, and other substances across the membrane. Do NOT produce energy
What is/are the major role(s) of the phospholipid bilayer
The formation of a barrier that is selectively permeable to lipid-soluble molecules and to provide a framework for membrane proteins
Which structure is a lipid bilayer that controls which objects can leave or enter the cell?
Plasma membrane
________ proteins extend all the way across the cell membrane
Transmembrane
The lumen of a hollow organ such as the stomach is considered to be part of the ________ environment.
External
Which two fluid compartments make up the extracellular fluid?
Plasma and interstitial fluid
Functions of the cell membrane include physical isolation of the cell from its surroundings, regulation of exchange, structural support, and which other function?
Communication between the cell and its environment
Cell membrane properties vary considerably in different types of cells. What determines the specific properties of a cell membrane?
The relative amounts of proteins and lipids
Parts of a Cell
...
Which of the following cell structures or functions involve microtubules?
All answers are correct:
Flagella
Moving molecules from one part of the cell to another
Cilia
Mitosis
Membranous organelles include __________.
Mitochondria and Golgi Complex
Groups of tissues that carry out related functions may form structures known as __________.
organs
Functions of connective tissue include __________.
all answers are correct:
providing protection for delicate organs
establishing a structural framework for the body
transporting fluids and dissolved materials
storing energy reserves
Which of the following statements about exchange epithelium is true?
Exchange epithelial cells are found in the lungs and lining of blood vessels.
The plasma membrane is __________.
primarily composed of lipid bilayer
Cells that retain the ability to develop into specific cell types within a tissue are called __________.
Stem Cells
The cytoskeleton is not responsible for which of the following cellular movements?
Diffusion of solutes
The basic structural and functional unit of the human body is __________.
the cell
Macrophages are cells that destroy invading bacteria or viruses by phagocytosis, a process similar to endocytosis. These types of cells would have a large number of __________.
lysosomes
Which of the following is not a nonmembranous organelle made from insoluble protein fibers?
Polyribosomes
Glands that secrete hormones into the blood via tissue fluids are __________ glands.
endocrine
Unsaturated fatty acids __________.
contain double bonds between carbon and hydrogen atoms
Primary protein structure is determined by __________.
the sequence of amino acids
The study of tissue structure and function is called __________.
histology
Cells that secrete large amounts of protein would most likely possess large numbers of or an extensive network of __________.
all answers are correct
Golgi complexes
rough endoplasmic reticulum
ribosomes