8th grade Science Final Exam Review (1 of 2)

Define cell membrane.

• The cell membrane is responsible for storing genetic information.
• The cell membrane is impermeable and does not allow any substances to pass through.
• The cell membrane allows materials to enter and exit the cell.

Tags

NGSS.MS-LS1-2

Define cell wall.

• Supports and gives structure to the plant cell.

• A layer that is impermeable to all substances
• A soft layer surrounding the cell membrane of animal cells

What is a group of cells working together to perform a specific function called?

• tissue

• cell membrane

• nucleus

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NGSS.MS-LS1-3

Define compound light microscope.

• A compound light microscope is a type of cooking utensil.
• A compound light microscope is a type of telescope used in astronomy.
• A compound light microscope is a type of microscope that uses multiple lenses to magnify the image of a sample.

What is a group of tissues working together to perform a specific function called?

• tissue bundle
• system
• organ

What is the difference between a unicellular organism and a multicellular organis? Give examples of each.

• The difference between a unicellular organism and a multicellular organism is the number of cells they are composed of. Unicellular example- bacteria

  Multicellular example- human

• Unicellular organisms have legs, while multicellular organisms do not.
• Unicellular organisms are always plants, while multicellular organisms are always animals.

Tags

NGSS.MS-LS1-1

Which cell parts are only found in a plant cell?

• Chloroplasts, Cell Wall
• Endoplasmic Reticulum
• Nucleus
• Mitochondria

Define nucleus.

• Control center of the cell

• The nucleus is a unicellular organism
• The nucleus is a structure found only in plant cells

Tags

NGSS.MS-LS1-2

Define mitochondria.

• Mitochondria are part of the endoplasmic reticulum.
• Mitochondria are responsible for photosynthesis.
• Powerhouse of the cell; breaks down food for energy

Tags

NGSS.MS-LS1-2

NGSS.MS-LS1-7

What is the function of the cytoplasm?

• The cytoplasm is responsible for DNA replication.
• Cytoplasm functions as a storage unit for waste materials.
• Watery, gel-like material insdie the cell wall that allows cell parts to move freely within the cell

Tags

NGSS.MS-LS1-2