Which of the following words or phrases describes the heterotrophic bacteria, the cyanobacteria, both or neither?
a.lack of nuclear envelope
b.photosynthesize similarly to green plants
c.possess a cell wall
d.eukaryotic cells
e.symbiotic relationships
f.saprobes
I know that d-neither and f-heterotrophic
But for the others, I am not sure.
To determine which words or phrases describe heterotrophic bacteria, cyanobacteria, both, or neither, we can analyze each statement and identify their characteristics.
a. "Lack of nuclear envelope": This characteristic describes prokaryotic cells, which means it would apply to both heterotrophic bacteria and cyanobacteria.
b. "Photosynthesize similarly to green plants": This characteristic describes cyanobacteria, as they are photosynthetic organisms. Heterotrophic bacteria do not photosynthesize.
c. "Possess a cell wall": This characteristic applies to both heterotrophic bacteria and cyanobacteria. Both types of bacteria have a cell wall.
d. "Eukaryotic cells": This characteristic does not apply to either heterotrophic bacteria or cyanobacteria. Both types of bacteria have prokaryotic cells.
e. "Symbiotic relationships": This characteristic applies to both heterotrophic bacteria and cyanobacteria. Both types of bacteria can engage in symbiotic relationships.
f. "Saprobes": This characteristic applies to heterotrophic bacteria. They are organisms that obtain nutrients by decomposing dead organic matter.
In summary:
- Heterotrophic bacteria possess a cell wall, engage in symbiotic relationships, and are saprobes.
- Cyanobacteria lack a nuclear envelope, possess a cell wall, engage in symbiotic relationships, and photosynthesize similarly to green plants.
- "Eukaryotic cells" does not describe either heterotrophic bacteria or cyanobacteria.
Therefore, the correct answers are:
- Heterotrophic bacteria: F (saprobes)
- Cyanobacteria: B (photosynthesize similarly to green plants)
- Both heterotrophic bacteria and cyanobacteria: A (lack of nuclear envelope), C (possess a cell wall), and E (symbiotic relationships)
- Neither heterotrophic bacteria nor cyanobacteria: D (eukaryotic cells)