Living vs Nonliving Cells - Middle School Life Science
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What is the key difference between unicellular and multicellular organisms?
What is the key difference between unicellular and multicellular organisms?
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Unicellular have 1 cell; multicellular have many cells. The number of cells distinguishes these two organism types.
Unicellular have 1 cell; multicellular have many cells. The number of cells distinguishes these two organism types.
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What is the correct conclusion if a sample contains cytoplasm and ribosomes inside a membrane?
What is the correct conclusion if a sample contains cytoplasm and ribosomes inside a membrane?
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Living (cell components are present). These cellular components together indicate a living cell.
Living (cell components are present). These cellular components together indicate a living cell.
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Which option is cellular evidence that a microbe is living: it has cells or it is magnetic?
Which option is cellular evidence that a microbe is living: it has cells or it is magnetic?
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It has cells. Only living things have cells; magnetism is a physical property.
It has cells. Only living things have cells; magnetism is a physical property.
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What is the correct cellular classification of a virus in middle school life science?
What is the correct cellular classification of a virus in middle school life science?
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Nonliving by cellular evidence (not made of cells). Viruses lack cellular structure despite having genetic material.
Nonliving by cellular evidence (not made of cells). Viruses lack cellular structure despite having genetic material.
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Which option is the best cellular evidence that an object was once living: fossilized cells or smooth glass?
Which option is the best cellular evidence that an object was once living: fossilized cells or smooth glass?
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Fossilized cells. Fossils preserve cell structures from once-living organisms.
Fossilized cells. Fossils preserve cell structures from once-living organisms.
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What is the correct classification if a sample shows only mineral crystals and no cells?
What is the correct classification if a sample shows only mineral crystals and no cells?
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Nonliving (no cells are present). Minerals form crystals but never contain cellular structures.
Nonliving (no cells are present). Minerals form crystals but never contain cellular structures.
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What is the correct classification if a microscope shows many membrane-bound cells in a sample?
What is the correct classification if a microscope shows many membrane-bound cells in a sample?
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Living (cells are present). Membrane-bound cells prove the sample contains living material.
Living (cells are present). Membrane-bound cells prove the sample contains living material.
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Which option is cellular evidence of an animal cell: cell wall or no cell wall?
Which option is cellular evidence of an animal cell: cell wall or no cell wall?
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No cell wall. Animal cells have only cell membranes, not rigid cell walls.
No cell wall. Animal cells have only cell membranes, not rigid cell walls.
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What structure provides strong cellular evidence that a cell is from a plant or fungus?
What structure provides strong cellular evidence that a cell is from a plant or fungus?
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Cell wall. Cell walls provide rigid support in plants and fungi but not animals.
Cell wall. Cell walls provide rigid support in plants and fungi but not animals.
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Which option is cellular evidence of a plant cell: chloroplast, centriole, or none?
Which option is cellular evidence of a plant cell: chloroplast, centriole, or none?
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Chloroplast. Only plant cells contain chloroplasts for photosynthesis.
Chloroplast. Only plant cells contain chloroplasts for photosynthesis.
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What organelle is a strong cellular clue that a sample is from a plant?
What organelle is a strong cellular clue that a sample is from a plant?
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Chloroplast. Chloroplasts perform photosynthesis and are unique to plant cells.
Chloroplast. Chloroplasts perform photosynthesis and are unique to plant cells.
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Which option is cellular evidence of a prokaryote: DNA in a nucleus or DNA in cytoplasm?
Which option is cellular evidence of a prokaryote: DNA in a nucleus or DNA in cytoplasm?
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DNA in cytoplasm. Prokaryotes store their DNA freely in the cytoplasm without a nucleus.
DNA in cytoplasm. Prokaryotes store their DNA freely in the cytoplasm without a nucleus.
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What is the difference between a prokaryotic cell and a eukaryotic cell?
What is the difference between a prokaryotic cell and a eukaryotic cell?
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Prokaryotic lack a nucleus; eukaryotic have a nucleus. The presence or absence of a nucleus defines these cell types.
Prokaryotic lack a nucleus; eukaryotic have a nucleus. The presence or absence of a nucleus defines these cell types.
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Which option is cellular evidence of life: nucleus, sand grain, or glass shard?
Which option is cellular evidence of life: nucleus, sand grain, or glass shard?
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Nucleus. The nucleus is an organelle found only in living eukaryotic cells.
Nucleus. The nucleus is an organelle found only in living eukaryotic cells.
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Which structure is found in all cells and is strong evidence of life?
Which structure is found in all cells and is strong evidence of life?
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Cell membrane. Every living cell must have a membrane to control what enters and exits.
Cell membrane. Every living cell must have a membrane to control what enters and exits.
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Which option is a unicellular living thing: bacterium, granite rock, or plastic bead?
Which option is a unicellular living thing: bacterium, granite rock, or plastic bead?
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Bacterium. Bacteria are single-celled organisms, while rocks and plastic lack cells.
Bacterium. Bacteria are single-celled organisms, while rocks and plastic lack cells.
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What is the cellular evidence rule used to classify something as living?
What is the cellular evidence rule used to classify something as living?
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Living things are made of one or more cells. This is the fundamental rule that defines life at the cellular level.
Living things are made of one or more cells. This is the fundamental rule that defines life at the cellular level.
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Which option is cellular evidence of life: cell membrane, crystal lattice, or metal alloy?
Which option is cellular evidence of life: cell membrane, crystal lattice, or metal alloy?
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Cell membrane. Cell membranes are essential structures found only in living cells.
Cell membrane. Cell membranes are essential structures found only in living cells.
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What is the best cellular evidence that something is nonliving?
What is the best cellular evidence that something is nonliving?
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It has no cells and no cellular structures. Absence of cells is the definitive proof of nonliving matter.
It has no cells and no cellular structures. Absence of cells is the definitive proof of nonliving matter.
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What is the correct classification if an object shows growth but has no cells (example: a crystal)?
What is the correct classification if an object shows growth but has no cells (example: a crystal)?
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Nonliving. Growth alone doesn't indicate life; cells are required.
Nonliving. Growth alone doesn't indicate life; cells are required.
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Which option is living based on cellular evidence: a seed or a pebble?
Which option is living based on cellular evidence: a seed or a pebble?
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A seed. Seeds contain plant embryos with cells; pebbles are nonliving minerals.
A seed. Seeds contain plant embryos with cells; pebbles are nonliving minerals.
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What is the correct term for a group of similar cells working together?
What is the correct term for a group of similar cells working together?
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Tissue. Cells organize into tissues for specialized functions.
Tissue. Cells organize into tissues for specialized functions.
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Identify the correct classification by cells: a dead leaf is living or nonliving now?
Identify the correct classification by cells: a dead leaf is living or nonliving now?
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Nonliving now (it was living). Dead organisms no longer perform life functions despite having cells.
Nonliving now (it was living). Dead organisms no longer perform life functions despite having cells.
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Which observation best supports that something is living: cells present or only movement observed?
Which observation best supports that something is living: cells present or only movement observed?
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Cells present. Movement can be nonliving (wind, water); cells prove life.
Cells present. Movement can be nonliving (wind, water); cells prove life.
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What is the main function of the nucleus in many cells?
What is the main function of the nucleus in many cells?
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It contains DNA and controls cell activities. The nucleus is the control center containing genetic material.
It contains DNA and controls cell activities. The nucleus is the control center containing genetic material.
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