Chapter 2 Cells to Systems

 Which part of a cell allows certain materials to enter the cell and other materials to exit the cell? 

• nucleus
• vacuole
• cytoplasm
• cell membrane

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Which process do most cells use to get energy?

• digestion
• excretion
• respiration
• photosynthesis

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Red blood cells look like small, smooth, flexible saucers. How does this shape help them perform their function?

•  The shape gives the cells more strength.
• The shape allows the cells to cover a surface. 
• The shape helps the cells move through blood vessels. 
• The shape enables the cells to quickly send signals to the brain.

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 In which body part would you find cells with hair-like structures?

• heart
• brain
• lungs
• mouth

Which choice below shows the order of organization in an animal from simplest to most complex?

• organ system, organ, tissue, cell
• cell, tissue, organ, organ system
• tissue, cell, organ system, organ
• tissue, cell, organ system, organ

What makes up muscle tissue?

• What makes up muscle tissue?
•  a group of muscle cells
• a group of muscle organs
• groups of muscle organs and nerve cells

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Which two organ systems work together to move the body? 

• muscle system and skeletal system
• muscle system and digestive system
• nervous system and digestive system
• respiratory system and nervous system

A cell has branch-like structures. Which organ did this cell most likely come from? 

• skin
• brain
• heart
• lungs

Which choice below produces energy for plant and animal cells?

• nucleus
• cytoplasm
• vacuole
• mitochondria

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Which of the following statements is true about all cells in plants and animals?

• All cells have the same shape.
• All cells have chloroplasts.
• All cells have a cell membrane that can be compared to your skin.
• All cells have a tough cell wall surrounding the cell membrane