Practice Questions Flashcards
What is not a component of the plasma membrane
Cytoskeleton
What components of ground substance adheres cells to their places within the extracellular matrix
Glycoproteins
The general type of tissue with an apical surface and a basement membrane is
Epithelial
Dense the regular collagenous connective tissue you resist tension and only one plane while dense regular connective tissue resist tension and all three planes
False
True membranes must fit structural and functional qualifications consist of a superficial layer of epithelial tissue in the layer of connective tissue in which it rest and anchor organs in place serve as barriers ,function in immunity and secrete very substances
True
Striations are a structural features associated with some:
Muscle cells
What protein makes stratified epithelium of tissues resistant to friction
Collagen
Nuclear pores connect the cytoplasm with the nucleoplasm and allow substances to move between two areas
True
Hyaline cartilage is found in the ears and part of the larynx
False
Since epithelial tissues are avascular, diffusion carries oxygen and nutrients to cell
True
Osteoblast are immature cells that build bone and carry out the process of bone deposition
True
The reaction of oxidative Catabolism, or aerobic respiration, can occur in the mitochondria on only in the presence of
Oxygen
Cells that generate, conduct, and receive electrical messages are
Neurons
What lubricates movable joints such as the hip knee and elbow
Synovial fluid
Stratified squamous epithelium is composed of multiple layers of flattened cells
True
You examine a tissue slide through a microscope and recognize one layer of cells that are mostly tall and elongated. You determined a tissue to be
Simple columnar epithelium
striations and cardiac muscle cells on modified gap junctions that unite the cells and permit the heart to contract as a unit
False
What type of secretion involves the release of substances, such as saliva and sweat, and secretory vesicles by exocytosis
Merocrine
The permanent replacement of normal tissue by scar tissue is called
fibrosis
Simple diffusion requires
A concentration gradient
Cells may lyse when placed into a hypertonic environment
false
A cell is placed into a 3% dextrose solution. At that concentration, the solution is isotonic to the cell. If the concentration of dexterous in the solution is increased to 5% the cell is now in a
Hypertonic solution
Which of the following is a more complex structure than a tissue
An organ
What is transported across a membrane during osmosis
Water
What type of membrane lines cavities that open to the outside of the body
Mucous membrane
The site is so an intracellular fluid both referred to the fluid portion of the cytoplasm
True
What happens to epithelial tissue damage from a superficial Papercut
Epithelial tissue heals by regeneration
Brown adipose tissue is found in
Infants and young children
Stratified epithelium does not line areas where transcellular transport is required
True
Human cells that lack of centrioles cannot _
Divide
Keratinized, dead cells are associated with
Stratified squamous epithelium
Active transport processes
Require cells to expend energy (ATP)
What is not one of the three main parts of a cell
Extracellular fluid
Simple columnar epithelium lines the air sacs of the lungs, forms the outer boundary of serous membranes, and lines of blood vessels
False
Goblet cells, the most common unicellular glands in the body, secretes mucus into the digestive and respiratory tract
True
