Science Chapter 2 Study Guide

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

• cell membrane
• cytoplasm
• vacuole
• nucleus

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Which process do most cells use to get energy?

• photosynthesis
• digestion
• respiration
• excretion

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

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

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

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What makes up muscle tissue?

• groups of muscle organs
• a group of muscle organs and nerve cells
• a single muscle cell
• a group of muscle 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 and digestive system
• respiratory and nervous system

Which choice below produces energy for plant and animal cells?

• nucleus
• vacuole
• cytoplasm
• mitochondria

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

• skin
• brain
• heart
• lungs

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

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