Characteristics of Organisms

What is the role of organelles in the function of eukaryotic cells?

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NGSS.MS-LS1-2

How can living organisms be identified based on cell type? (What characteristics can help you determine whether an organism is prokaryotic or eukaryotic)

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NGSS.MS-LS1-1

Examine the diagram of a cell.

If an organism has cells like the one in the diagram, what can you conclude about the organism?

• The organism is unicellular.

• The organism is autotrophic.

• The organism is a prokaryote.

• The organism is a eukaryote.

Tags

NGSS.MS-LS1-1

NGSS.MS-LS1-2

Tamara studies the living things in a forest ecosystem and classifies an organism as a heterotroph based on what she observes. Which of Tamara’s observations would best support identifying it as a heterotroph?

• It needs water to survive.

• It eats insects and mice.

• It lives on the forest floor.

• It is composed of many cells.

A student examined one cell from an organism and was able to classify the organism as a eukaryote. What characteristic did the student observe to support this conclusion?

• The cell had genetic material that was not contained in a membrane.

• The cell had genetic material that was contained in a membrane.

• The cell could only be viewed with a microscope.

• The cell was large enough to be viewed without a microscope.

A scientist doing research in the Amazon rain forest discovers a new species. He recorded his observations about the species in Table 1.

How should this new species be classified?

• multicellular

• autotroph

• heterotroph

• prokaryotic

• eukaryotic

Tags

NGSS.MS-LS1-1

A student examined one cell of an organism and concluded that the organism is an autotroph.

What evidence best supports this conclusion?

• The cell contains a nucleus, which holds the genetic information.

• The cell contains mitochondria, which help it process food energy.

• The cell has a cell membrane, which controls what enters and leaves the cell.

• The cell contains chloroplasts, which collect the Sun’s energy and convert it to food energy.

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NGSS.MS-LS1-2

NGSS.MS-LS1-6

This diagram below can be used to compare the characteristics of Prokaryotic and Eukaryotic cells.

Which characteristic could be placed in the “Both” section of this Venn diagram?

• has a nucleus

• has circular DNA

• has a cell membrane

• found in multicellular organisms

The table shows data a student recorded as she researched several organisms.

Which organism has the characteristics of a eukaryotic multicellular heterotroph?

• A

• B

• C

• D

Tags

NGSS.MS-LS1-1

A student made the following cell models.

How should these models be labeled?

• A: Eukaryote, B: Eukaryote

• A: Eukaryote, B: Prokaryote

• A: Prokaryote, B: Eukaryote

• A: Prokaryote, B: Prokaryote

Tags

NGSS.MS-LS1-1