Microorganisms - Bacteria Summary Worksheet (Based on The Answer Series IEB 3-in-1 Grade 11 Book)

MICRO-ORGANISMS-BACTERIA

1. Bacteria are the _______________________and ______________________living
organisms.

2. Bacteria are classified under the kingdom _______________.

3. Bacteria occur in almost any imaginable ________________ on Earth.

4. Some bacteria live in the presence of ________________ and are known as
_____________ bacteria, while others live in the absence of _________ and are
known ______________bacteria.

5. Some bacteria are _____________ and cause diseases such as
________________, _______________________ and ________________.


BASIC STRUCTURE OF BACTERIA

1. Bacteria are _________ and occur as _________ cells, _____________ or
___________.
2. The bacterium cell is surrounded by a ______ __________ that consists of
_______________(carbohydrates), ______________ and __________.

3. In some bacteria (especially those that cause diseases), the cell wall is
surrounded by a _________. _________or ________, which protects the
bacterial cell from __________and ___________ (i.e. __________cells).

4. A ___________ __________ (cell membrane) which encloses the
______________, occurs directly below the _____ ______.

5. The ________________ has no ____________-__________ organelles, such as
__________, ____________, _____________ or _______, but ______________ do
occur.

6. A __________ nucleus (__________-________) is absent.

7. _____________ material (DNA) is concentrated in a chromatin body known
as the ___________.

8. Some bacteria move in liquid by means of long, thread-like structures
called ________________.