Study Guide: Cell Structure

Which of the following is not a main cellular structure?

All of the following are examples of the plasma membrane function except:

Production of ATP occurs within which organelle?

Preparation of protein molecules for cellular exportation is the function of which of the following organelles?

In nondividing cells DNA appears as threads that are referred to as

The nucleolus is composed chiefly of

The process by which cells translate the signal received by a membrane receptor into a specific chemical change in the cell is called signal transportation

Each and every cell has one nucleus.

Generally, the more active a cell is, the more mitochondria it will contain.

Membranous bags that temporarily contain molecules for transport or later use are known as peroxisomes.

[blank_start]Nucleolus[blank_end]: forms ribosomes [blank_start]Plasma membrane[blank_end]: separates the cell from its environment [blank_start]Lysosome[blank_end]: acts as the cell's "digestive system" [blank_start]Ribosome[blank_end]: acts as a "protein factory" [blank_start]Cytoplasm[blank_end]: contains organelle [blank_start]Nucleus[blank_end]: contains DNA [blank_start]Mitochondria[blank_end]: act as "power plants" of the cell [blank_start]Endoplasmic reticulum[blank_end]: classified as both smooth and rough

[blank_start]Cytoskeleton[blank_end] is the cell's internal supporting framework.

[blank_start]Microfilament[blank_end] are the smallest cell fibers.

The thickest of the cell fibers are tiny, hollow tubes called [blank_start]microtubules[blank_end].

The [blank_start]centrosome[blank_end] is an area of they cytoplasm near the nucleus that coordinates the building and breaking of microtubules in the cell.

[blank_start]Microvilli[blank_end], [blank_start]cilia[blank_end], and [blank_start]flagella[blank_end] are cell extensions that appear on certain types of cells.

When membrane channels of adjacent plasma membranes connect to others, the formation is known as [blank_start]gap[blank_end] [blank_start]junctions[blank_end].

[blank_start]Desmososomes[blank_end] hold skin together.

Which of the following cellular extensions are required when absorption is important?

Movement of the ovum within the female reproductive tract is largely as a result of

Skin cells are held tightly together by

Ribosomes are attached to

The phospholipid area of the plasma membrane of a cell is

[blank_start]Nerve cells[blank_end]: detect changes in the environment [blank_start]Muscle cells[blank_end]: contract for movement [blank_start]Red blood cells[blank_end]: transport oxygen [blank_start]Gland cells[blank_end]: release hormones [blank_start]Immune cells[blank_end]: destroy bacteria

A typical, or [blank_start]composite[blank_end] cell exhibits the most important characteristics of cell types.

[blank_start]Hydrophilic[blank_end] is the term meaning "water-loving"

[blank_start]Signal[blank_end] [blank_start]transduction[blank_end] is the process that allows a message to be carried across a membrane.

[blank_start]Peroxisome[blank_end] detoxify harmful substances that enter cells.

The [blank_start]nucleus[blank_end] is one of the largest cell structures and occupies the central portion of the cell.

Embedded within the phospholipid bilayer of the cell membrane are a variety of [blank_start]integral[blank_end] [blank_start]membrane[blank_end] [blank_start]protein[blank_end].

Peroxisomes are small membranous sacs containing enzymes that detoxify harmful substances that enter the cells.

Dynein, myosin, and kinesin are examples of proteases.

Microfilaments serve as "cellular muscles".

All cells contain thousands of ribosomes.