7 Biology Unit Test

What is the main difference between microbes and cells that come from multicellular organisms?

• Microbes are smaller than the cells than come from multicellular organisms
• Microbes are individual living cells and cells that come from multicellular organisms need to be part of a larger organism to survive
• Microbes have a more complex set of organelles than cells that come from multicellular organisms
• Microbes so not undergo cellular respiration as a part of their cell metabolism, but cells from multicellular organisms do

Which of the following are activities involved in the metabolism of a cell? (Check all that apply)

• Releasing energy from food
• Making chemicals the cell needs
• Getting rid of waste
• Using protein to repair the cell
• Storing energy for the cell to use at a later time

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NGSS.MS-LS1-2

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Which of the following organelles are NOT found in animal cells? (Select all that apply)

• Cell Wall
• Chloroplast
• Ribosome
• Lysosome
• Cell Membrane

Which of the following is the best definition of a cell?

• A structure that stores food and water
• The smallest unit of a living thing
• An organism that undergoes the basic life functions of eating and breathing
• A subsystem of a living organism

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NGSS.MS-LS1-2

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You can find a nucleus in the cells of:

• Humans, protists, bacteria, viruses
• Humans, protists, bacteria
• Humans, protists
• Only humans

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NGSS.MS-LS1-2

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Angela goes for a run and notices that after a mile of running, she is breathing fast and her heart rate has increased. Which of the following is the best explanation for this?

• When Angela's heart beats faster, it makes her lungs work harder which increases her breathing rate.
• Running is a strenuous exercise so Angela needs more oxygen coming into her body to power her cells.
• When Angela's heart beats faster, the blood in her circulatory system is moving faster throughout her body and needs extra oxygen to carry
• Running is a strenuous exercise so Angela needs more energy to do it, which can only be released by more cellular respiration

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The muscular system, the muscles found throughout your body, allows us to move around, but it also plays an important role in allowing us to undergo cellular respiration. Explain how the muscular system is involved in each of the body systems responsible for cellular respiration (digestive, circulatory, respiratory). (Check all that apply)

• Digestive System-stomach muscles mix food

• Circulatory System-heart muscle pumps blood around body

• Cell System-moves cell around the environment

• Respiratory System-diaphragm opens and closes lungs

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NGSS.MS-LS1-3

Single-celled organisms are individual cells that live independently from any other cells. Why are the cells of multicellular organisms not able to do this?

• The cells of multicellular organisms do not contain a cell wall and therefore lack the structure needed to function independently
• The cells of multicellular organisms are physically attached to each other which does not allow them to live independently
• The cells of multicellular organisms do not have the organelles needed to undergo cellular respiration independently
• The cells of multicellular organisms are part of a larger system that they rely on to survive so they cannot function independently

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NGSS.MS-LS1-3

What does the shape of a cell tell you?

• The age of the cell
• The function of the cell
• The origin of the cell
• The location of the cell

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What is the difference between a eukaryote and a prokaryote?

• Eukaryotes can move freely, prokaryotes cannot
• Eukaryotes are much smaller than prokaryotes
• Eukaryotes are plants, prokaryotes are animals
• Eukaryotes have a nucleus, prokaryotes do not