Cell Characteristics

The following table shows the surface area-to-volume ratio of four cube-shaped cell models.

Cells are small, and their surface area is large in relation to their volume. This is an important feature for the transport of nutrients and water in to and out of the cell. Which of the four model cells do you think will be best able to supply nutrients and water to its cell parts?

• Cell model A

• Cell model B

• Cell model C

• Cell model D

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NGSS.MS-LS1-2

The following table shows the surface area-to-volume ratio of four cube-shaped cell models. Cells are small, and their surface area is large in relation to their volume. This is an important feature for the transport of nutrients and water in to and out of the cell. Which of the four model cells do you think will be best able to supply nutrients and water to its cell parts?

• Cell model A

• Cell model B

• Cell model C

• Cell model D

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NGSS.MS-LS1-2

A Eukaryotic cell does not have .............................

• DNA in cytoplasm

• a nucleus

• A membrane bound organelles

• DNA in nucleus

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NGSS.MS-LS1-1

The ......................................organism that must carry out all life functions with a single cell.

• Multicellular

• two - celled

• Three-celled

• unicellular

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NGSS.MS-LS1-1

When observing a piece of onion skin under magnification, a student records the following entry in his Science Journal. Which observation would have been the same for any type of living organism that the student observed?

• Made of at least one cell

• Walls present between

• Nucleus in the middle

• Looks practically empty

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NGSS.MS-LS1-1

Which of the following is not one of the 5 things all cells have?

• cell membrane

• cytoplasm

• DNA

• nucleus

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NGSS.MS-LS1-2

During a class investigation on cells, students observed different cell types using a compound light microscope and prepared slides. An ​ (a)   is a ​ (b)   that has an outermost rigid cell wall and a large vacuole. They appear brick-like in shape. On the other hand, a ​ (c)   is an ​ (d)   having a rounded structure but lacking a cell wall.

• onion cell

• plant cell

• human cheek cell

• animal cell

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NGSS.MS-LS1-1

NGSS.MS-LS1-2

Curtis is looking at a plant cell under a powerful microscope. He draws a diagram that represents the cell. What characteristics does this cell share with all other cells?

• This cell contains cytoplasm

• This cell did not come from other cells

• This cell is a single-celled organism.

• This cell comes from a multi-cellular organism

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NGSS.MS-LS1-1

NGSS.MS-LS1-2

Which is FALSE about cells?

• All cells have DNA

• All cells have cell walls

• All cells have cell membranes

• All cells have ribosomes

During a class investigation on cells, students observed different cell types using a compound light microscope and prepared slides.

​ (a)   is a ​ (b)   that has the ability to change its shape. They are ​ (c)   such as ponds, lakes and slow-moving rivers. Sometimes, these unicellular organisms can also make their way inside the human body and cause various illnesses.

• unicellular organism

• Amoeba

• usually found in water bodies

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NGSS.MS-LS1-1