Question

Single-celled amoebas and bacteria are grouped into different domains because a. amoebas eat bacteria. b. bacteria are not made of cells. c. bacterial cells lack a membrane-enclosed nucleus. d. amoebas are motile; bacteria are not.

Name: Problem 3, Chapter 1: Campbell Biology : Concepts and Connections
Uploaded: 2020-06-01T19:57:34-08:00
Duration: 1 min 42 s
Channel: Bryce Edwards
Description: Single-celled amoebas and bacteria are grouped into different domains because a. amoebas eat bacteria. b. bacteria are not made of cells. c. bacterial cells lack a membrane-enclosed nucleus. d. amoebas are motile; bacteria are not.

   Single-celled amoebas and bacteria are grouped into different domains because
a. amoebas eat bacteria.
b. bacteria are not made of cells.
c. bacterial cells lack a membrane-enclosed nucleus.
d. amoebas are motile; bacteria are not.

Campbell Biology : Concepts and Connections

Jane B. Reece,… 8th Edition

Chapter 1, Problem 3

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Solved by Expert Bryce Edwards

06/01/2020

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Archaea and Bacteria are further classified as prokaryotes, while Eukarya are classified as eukaryotes. Show more…

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Single-celled amoebas and bacteria are grouped into different domains because a. amoebas eat bacteria. b. bacteria are not made of cells. c. bacterial cells lack a membrane-enclosed nucleus. d. amoebas are motile; bacteria are not.

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Key Concepts

Prokaryotic Cells

Prokaryotic cells are characterized by the absence of a membrane-bound nucleus and other membrane-enclosed organelles. This fundamental difference in cell structure distinguishes them from eukaryotic cells and is central to understanding why organisms like bacteria are classified in a separate domain.

Eukaryotic Cells

Eukaryotic cells possess a membrane-enclosed nucleus that houses their genetic material, along with various other membrane-bound organelles. This compartmentalization allows for complex cellular processes and is a key factor in grouping organisms such as amoebas into the eukaryotic domain.

Domain Classification

Domain classification is the highest level of organization in the biological taxonomy system. It separates life into broad groups based on fundamental cellular characteristics, such as the presence or absence of a membrane-bound nucleus, thereby categorizing bacteria as prokaryotes and organisms like amoebas as eukaryotes.

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