Milestones Review Cells

A scientist is studying the blood cells from two different animals, a frog and a mouse. Which of the following is most likely to be the same?

• The number of chloroplasts because they make their own food.

• The shape of the cell walls because the cells have a rigid structure for support.

• The size of the vacuoles because each cell must store the same amount of water and waste.

• The number of nuclei because each cell will have a control center that directs the organelles.

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Which of the following is the smallest unit of life that can carry out all life functions?

• the mitochondria

• the vacuoles

• the nucleus

• the cell

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Which cell structure is found in plant and animals cells and controls what can come into or leave a cell?

• cell membrane

• cytoplasm

• nucleus

• vacuole

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What is the function of the cell nucleus found in both plant and animal cells?

• to produce energy

• to control cell activity

• to remove waste products

• to allow molecules to enter the cell

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Every living organism is made up of one or more cells

• True

• False

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Which of the following are NOT found in animal cells

• chloroplasts and cytoplasm

• chloroplasts and cell wall

• cell wall and cell membrane

• mitochondria and nucleus

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The fluid that surrounds the organelles is... (hint... "Try to pull a fast one and..."

• chloroplast

• cytoplasm

• vacuole

• cell wall

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What are organelles?

• Parts that come together to make an organ system.

• A group of similar cells that perform similar functions.

• A group of organs that perform similar functions

• Tiny structures within a cell that allow the cell to live, grow, and reproduce.

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How are multi-celled and single-celled organisms different?

• multi-celled organisms need energy to survive, while single-celled orgranisms need no energy to survive

• single-celled organisms can be seen without using a microscope, while multi-celled organisms are microscopic

• multi-celled organisms have large numbers of specialized cells to perform a variety of life functions, while single-celled organisms complete life functions within one cell

• single-celled organisms have large numbers of identical cells that all perform the same function, while multi-celled organisms have cells that are all different and perform different life functions

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Which best explains why humans are multicellular organisms?

• human cells are too small to function alone

• human cells join together to form one large cell

• humans need many cells to carry out life processes

• humans have many systems that perform the same function

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