Question 1

Most human enzymes are synthesized intracellularly and function

Accepted Answer

A)  within the same cell. 
B)  in another location after secretion. 
C)  in the bloodstream due to leakage from the synthesizing cell. 
D)  to promote tumors unless quickly degraded.

Question 2

What structural body made up of flattened cisternae flanked by tubular networks is thought to be an extension of the endoplasmic reticulum?

Accepted Answer

A)  nucleus 
B)  cytoplasm 
C)  lysosome 
D)  Golgi apparatus

Question 3

The cell organelle responsible for most of the initiation and regulation of cellular activity is the _____.

Accepted Answer

A)  cytoplast 
B)  nucleus 
C)  mitochondrion 
D)  nucleolus

Question 4

The smooth endoplasmic reticulum (SER) is associated with

Accepted Answer

A)  lipid synthesis. 
B)  protein synthesis. 
C)  the calcium ion pump necessary for the contractile process. 
D)  ribosomes and cytochrome P450 enzymes.

Question 5

In the cell structure the _____ provides support and controls the movement of cell organelles.

Accepted Answer

A)  endoplasmic reticulum 
B)  mitochondrion 
C)  cytoskeleton 
D)  matrix space

Exam 1: The Cell: a Microcosm of Life

Most human enzymes are synthesized intracellularly and function

What structural body made up of flattened cisternae flanked by tubular networks is thought to be an extension of the endoplasmic reticulum?

The cell organelle responsible for most of the initiation and regulation of cellular activity is the _____.

The smooth endoplasmic reticulum (SER) is associated with

In the cell structure the _____ provides support and controls the movement of cell organelles.