Unit 2: Cells

The movement of oxygen molecules over time from one side of the semipermeable membrane to the other side is known as

• Osmosis

• Facilitated Diffusion

• Active Transport

• Diffusion

Which type of cell has a large, central vacuole that controls water pressure?

• viral cell

• animal cell

• plant cell

• bacteria cell

Both prokaryote and eukaryote cells have this structure. It helps maintain homeostasis and is a boundary between the inside of the cell and the outside environment. It is the

• nucleus

• membrane

• cytoplasm

• cell wall

Tags

NGSS.MS-LS1-2

Muscle cells have many mitochondria for

• Energy

• Protection

• reproduction

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NGSS.MS-LS1-2

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Which is a difference between plant and animal cells?

• An animal cell can produce energy, because it has mitochondria.

• A plant cell has a well defined shape, because it has a cell wall.

• A plant cell can store genetic information, because it has a nucleus.

• Molecules can only pass into an animal cell because it has a cell membrane.

The cell membrane forms a protective barrier between the external and internal environments. It is referred to as ___________________, because it allows some substances to cross more easily than others and blocks other substances from crossing into the cell.

• impermeable

• a fluid mosaic

• a plasma membrane

• selectively permeable (semi)

Tags

NGSS.MS-LS1-2

The shape of plant cells are determined by how much ________ is contained within the vacuole.

• air

• glucose

• salt

• water

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NGSS.MS-LS1-2

Where are chromosomes (genetic material) found in an animal cell?

• inside a gene

• in the cytoplasm

• in a strand of DNA

• inside of the nucleus

What is in a chloroplast that provides the green color?

• chlorophyll

• protein

• water

• DNA

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Your science teacher has asked the class to make a cell city model. Which building or business in the city could represent the mitochondria, and why?

• city dump - waste storage

• city hall - control center

• roads - transportation system

• power company - produces energy

Tags

NGSS.MS-LS1-2