Cells & Organelles

Question 1

What is the parasite that causes amoebiasis?

Answer 1

Entamoeba histolytica

Question 2

How can entamoeba histolytica be transmitted?

Answer 2

Through stool or feces, as well as contaminated water, soil, or fertilizer

Question 3

How do prokaryotes reproduce?

Answer 3

Binary fission

Question 4

It is a membrane bound organelle containing multiple chromatin.

Answer 4

Nucleus

Question 5

Are cells that have no nucleus prokaryotic or eukaryotic?

Answer 5

Prokaryotic

Question 6

What do prokaryotes have instead of a nucleus?

Answer 6

Nucleoid

Question 7

How many chromosomes are in a nucleoid?

Answer 7

One

Question 8

Cell Theory was formulated by which three scientists?

Answer 8

Matthias Schleiden, Theodore Schwann, and Rudolph Virchow

Question 9

What are the six principles of cell theory?

Answer 9

1. All living organisms are made up of cells.
2. Cells are the basic unit of life.
3. Cells arise from pre-existing cells.
4. Hereditary information is passed from cell to cell during cell division.
5. All cells are the same in chemical composition in organisms of similar species.
6. Energy flow occurs within cells.

Question 10

True or False: Binary fission is a form of asexual reproduction.

Answer 10

TRUE

Question 11

What is the smallest cell?

Answer 11

Mycoplasma gallicepticum; bacterium measuring 0.0001 micrometers.

Question 12

Approximately how many average-sized human cells can fit on the head of a pin?

Answer 12

10,000

Question 13

It is the common unit of measurement in the study of cells.

Answer 13

Micrometer (μm)

Question 14

1 micrometer is equal to how many meters?

Answer 14

1/1,000,000 meter