The nucleus _________, which is essential for function and survival of the cell.
Answer - B) contains the genetic code
Although energy is not made in mitochondria, they are known as the power plants
of the cell because they: Answer - C) extract energy from organic compounds.
Although the basic structure of the cell plasma membrane is formed by a lipid
bilayer, most of the specific membrane functions are carried out by: Answer - A)
bound and transmembrane proteins.
To effectively relay signals, cell-to-cell communication utilizes chemical
messenger systems that: Answer - D) release secretions into extracellular fluid.
Aerobic metabolism, also known as oxidative metabolism, provides energy by:
Answer - B) combining hydrogen and oxygen to form water.
Exocytosis, the reverse of endocytosis, is important in _______ into the
extracellular fluid. Answer - C) Removing cellular debris and releasing synthesized
substances
The process responsible for generating and conducting membrane potentials is:
Answer - A) diffusion of current-carrying ions.
Epithelial tissues are classified according to the shape of the cells and the number
of layers. Which of the following is a correctly matched description and type of
epithelial tissue? Answer - C) Glandular epithelium: arise from surface epithelia
and underlying connective tissue
Connective tissue contains fibroblasts that are responsible for: Answer - B)
synthesis of collagen, elastin, and reticular fibers.
Although all muscle tissue cells have some similarities, smooth muscle (also
known as involuntary muscle) differs by: Answer - A) having dense bodies
attached to actin filaments.