Passive movement of fluids and bacteria from the

Passive movement of fluids and bacteria from the interior of the small intestine through the
space between cells of the intestinal wall can cause serious infection and medical
complications. Defects in which of the following would e associated with such a condition?
1. Tight junctions
2. Desmosome
3. Gap junction
4. Cell walls

A cell has the following molecules and structures: enzymes, DNA, ribosomes, plasma,
membrane, chloroplasts, and mitochondria. It could be
Which structure is not part of the endomembrance system? Which of the following molecules is required to build collator flagella?
In an animal cell, DNA may be found in which of the following organelles?
1. Only in the nucleus and rough ER
2. In the nucleus, mitochondria, and rough ER
3. Only in the nucleus and mitochondria
4. Only in the nucleus
Which of the following organelles are enclosed by a double membrane?
Which structure is the site of the synthesis of proteins destined for export from the cell?
Motor proteins provide for molecular transport of materials in cells by interacting with what
type(s) of cellular structures?