A single-celled organism can be classified as a prokaryote based on the absence of-

• A cell membrane

• ribosomes

• chromosomes

• a nucleus

Both EUglena and cyanoBACTERIA are unicellular organisms found in pond water. What distinguishes one from the other?

• The ability to maintain homeostasis

• Presence of ribosomes

• Presence of a nuclear membrane

• Ability to reproduce

An organism was discovered, it does not have a nucleus and does not have membrane-bound organelles. This is a-

• Eukaryote

• Prokaryote

• Enzyme

• Carbohydrate

Which cellular process takes place in the RIBOSOMES that are bound to the ER?

• Breakdown of waste material

• Production of ATP

• Synthesis of new proteins

• Replication of nucleic acids

Which of these statements best explains the process of energy that takes place in the mitochondria?

• Water molecules are converted into gas

• Oxygen is released

• Site of photosynthesis

• Production of ATP

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Chikilin Martinez is trying to find out what his best friend is, all he knows is that he has a nucleus. His best friend is likely to be a...

• Virus

• Eukaryote

• Prokaryote

• Bacteria

The Endosymbiotic theory talks about:

• A prokaryote engulfing another eukaryote and functioning properly

• A mitochondria-like prokaryote engulfing a chloroplast-like prokaryote and functioning together

• A prokaryote digesting another prokaryote and using its DNA

• A prokaryote engulfing another prokaryote and functioning properly

Evidence for the Endosymbiotic Theory is that chloroplasts mitochondria have the same size and structure as bacteria.

• True

• False

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NGSS.HS-LS4-2

When prokaryotes engulfed a chloroplast-like prokaryotes, what were they able to perform?

• Cellular respiration only

• Photosynthesis

• Production of proteins

• Store lipids for insulation purposes

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NGSS.HS-LS2-5

The cell membrane is said to be semi-permeable because:

• It can duplicate its genetic information

• It allows certain things in and out of the cell

• It provides protection and structure to the cell

• It can replicate its chromosomes