Bacteria come in three basic shapes - coccus, which can be found in clusters, chains, or pairs; bacillus, which can be found in chains; and spirillum. Prokaryotic cells like bacteria and cyanobacteria lack nuclei and internal membranes. Most eubacteria are heterotrophs that obtain nutrition from outside sources, with many living as saprophytes that cause decay and some being parasites that can cause disease.

1. MORPHOLOGY OF
BACTERIA

2. COCCI IN CLUSTERS

6. COCCI IN CHAINS

10. COCCI IN PAIRS DIPOLOCOCCI

12. BACILLI IN CHAINS

13. GRAM NEGATIVE BACILLI

14. SPIROCHAETES

17. Prokaryotic cells all lack a nucleus and other internal-1
cell membranes. Both bacteria and cyanobacteria are
.prokaryotic
-Bacteria come in three basic shapes:2.
, Coccus , bacillus
.and spirillum
Almost all eubacteria are heterotrophs and obtain-3
nutrition from outside sources. Many of these
bacteria are saphrophytic and live by causing decay
and putrification of organic material. Some
eubacteria are parasitic and responsible for disease in
.plant, animals, and humans

18. Spirochetes
. Staphyloccoccus sp
Bacillus sp
Spirochetes