T/F: A theory supported by repeated observation and experimentation is called a hypothesis.
False
T/F: Anatomy is the study of the functions of an organism and it's parts, as opposed to the study of it's structure.
False
The lungs are located in the:
Thoracic Cavity
T/F: For osmosis to occur, there emus be at least one impermeable solute present.
True
In non dividing cells, DNA appears as threads that are referred to as:
Chromatin
A hypertonic solution contains:
A greater concentration of solute than the cell
T/F: Most enzymes cannot catalyze a reaction in both directions.
False
The structure in white bloods cells associated with enzymatic breakdown of foreign material is the:
Lysosome
Withdrawing from a painful stimulus is an example of:
Responsiveness
A plane through the body that divides the body into right and left sides is called:
Sagittal
T/F: The cell's internal supporting framework is called the cytoskeleton
True
T/F: Ribosomes attached to the endoplasmic reticulum are responsible for making proteins for export out of the cell
True
The basic unit of structure and function in the human body is a:
cell
The major energy production site of the cell is the:
Mitochondria
Which is a function of ribosomes?
Protein Synthesis
The presence of this substance is the cell membrane prevents it from breaking easily.
Cholesterol
What is not an example of passive transport?
Endocytosis
A solution that contains a higher concentration of salt than a living red blood cell would be:
Hypertonic
Flagella are examples of?
Cell extensions
Molecules cannot permeate the crack of these junctions
Tight junctions
An example of carrier-mediated passive transport is the:
Diffusion of glucose molecules into most cells
T/F: For osmosis to occur, a selectively permeable membrane must be present
True
T/F: Lysosomes are bags of enzymes that break down defective cell parts and ingested particles
True
T/F:Active transport processes that utilize carrier molecules, or pumps, do not use cellular energy but rely on concentration gradients.
False
T/F: Rough ER appears rough because there are ribosomes attached to it.
True
T/F: The sodium-potassium pump is an example of a passive transport process
False
T/F: Peroxisomes detoxify harmful substances that may enter cells
True
T/F: Cholesterol is a double layered molecule that is both water soluble and lipid soluble
False
T/F: An example of endocytosis is pinocytosis
True
T/F: Diffusion is a primary passive transport process that moved substances from an area of high concentration to one of low concentration through a cell membrane.
True
T/F: Cells placed in a hypertonic solution will swell and eventual lyse, as water flows into them
