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Chapter 5 Flashcards
Anatomy Chapter 5
Question | Answer |
---|---|
Which area of the cytoplasm near the nucleus coordinates the building and breaking of microtubules in the cell? | centrosome |
The inside of the cell is composed largely of a gel-like substance called | cytoplasm |
Which of the following statements about integral proteins in the plasma membrane is false? | They are more abundant by volume than the membrane phospholipids |
In the matrix of the plasma membrane, a variety of proteins are embedded. Some of these proteins serve as passageway for Na+ ions or glucose. These proteins are called | transport proteins |
This membranous organelle is the site of protein synthesis for proteins that are secreted by the cell | rough endoplasmic reticulum |
A spherical membrane-bound structure that contains the genetic material of the cell and is often referred to as the "command center" of the cell is the | nucleus |
Which of the following cytoskeleton elements are the largest in diameter | microtubules |
This organelle is primarily a sac of powerful digestive enzymes called acid hydrolases | lysosome |
Of the following, the only organelle that has a double membrane structure is the | mitochondrion |
A major function of the cell membrane is to | control what enters and leaves the cell |
Which of the following is not a cytoskeleton element | centriole |
The outer boundary of a human cell is called the | plasma mebrane |
This organelle primarily modifies products from the rough ER, and it resembles a stack of hollow saucers, one cupped inside the next | golgi apparatus |
This organelle is characterized by folded mebranes called cristae | mitochondria |
This membranous organelle contains oxidase and catalase enzymes | peroxisome |
Ribosomes are organelles that | float in the cytoplasm and attach to the endoplasmic reticulum |
This organelle has both a cis and a trans face | golgi apparatus |
Phospholipids of the plasma membrane are arranged | as a bilayer with their nonpolar tails sandwiched between the polar heads |