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A freshwater plant is placed in a container of saltwater. What will most likely happen to the cells of the plant?

• They will swell because water will move into them

• They will swell because salt will move into them.

• They will shrink because water will move out of them.

• They will shrink because salt will move out of them

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NGSS.MS-LS1-2

NGSS.MS-LS1-5

Hospital patients are often given intravenous fluids (IVs) to maintain proper levels of water and salts in the body. Great care is used in preparing these solutions. If a manufacturer accidentally prepared a batch of IV fluid that contained much more than the usual amount of salt, harm to the patient could result. The most likely effect on a patient if this incorrectly prepared IV fluid was used is that

• water would move into body cells and cause them to burst

•  water would move out of body cells and cause them to dehydrate

•  salt and water would both move out of body cells and disrupt homeostasis

• salt and water would both move into body cells and preserve homeostasis

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NGSS.HS-LS1-3

State the process that organelle X performs.

• photosynthesis

• cellular respiration

• protein synthesis

• information storage

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NGSS.MS-LS1-2

What substance would you predict was added to the cells to cause the change shown?

• Distilled Water

• Tap Water

• Salt Water

• Gummy Bears

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NGSS.MS-LS1-2

NGSS.MS-PS1-2

Plants have openings on their leaves called stomata, through which gases, including water vapor, can pass in and out of the plant. Plants open and close stomata in order to regulate the exchange of gases with the atmosphere. Why might it benefit plants to keep their stomata closed under certain conditions?

• To reduce water loss during a drought

• To increase energy production at night

• To decrease the need for nutrients

• To prevent predation of insects

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NGSS.MS-LS1-5

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Process where food is broken down to release chemical energy. Occurs in the mitochondria.

• Cellular Respiration

• Photosynthesis

• Active Transport

• Passive Transport

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NGSS.MS-LS2-3

In order to sustain life, all cells must...

• digest nutrients and water

• excrete waste and fluids

• must be able to maintain a homeostasis environment (aka cellular respiration and regulation)

• All of the above

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NGSS.MS-LS1-6

Which is NOT part of the Cell Theory

• New cells are produced from existing cells

• All living things are composed of cells

• Only eukaryotic cells have a nucleus

• Cells are the basic unit of structure & function in living things

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NGSS.MS-LS1-1

How does photosynthesis benefit heterotrophs?

• It adds carbon dioxide to the air

• It creates food that they can eat

• It eliminates harmful sugars

• It creates clean water

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NGSS.MS-LS1-6

Why do some cells in multi-cellular organisms repeatedly divide to make more cells?

• so the organism can grow

• to produce more food

• to remove wastes

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NGSS.MS-LS1-2