F24 Unit 1 Quiz Reassessment

The combination of chemical reactions through

which an organism builds up or breaks down

materials as it carries out its life processes is called ...

• absorption

• metabolism

• digestion

• consumption

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SB4c

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James, Elijah, and Evelyn went for a winter hike. As they stepped out into the freezing weather, their bodies started to shiver in order to maintain their internal body temperature at 98.6F. Which characteristic of life does this represent?

• All living things use energy

• All living things contain cells

• All living things maintain homeostasis

• All living things grow

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Green plants produce their own food through the process of photosynthesis. Which characteristic of life does this represent?

• All living things use energy

• All living things contain cells

• All living things maintain homeostasis

• All living things grow

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A camel has eyelashes that work to keep the dust and sand out of its eyes. Which characteristic of life does this represent?

• All living things adapt to their environment

• All living things grow

• All living things have cells

• All living things use energy

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Rocks are not living because

• they never move
• they aren't needed for humans
• they are not made of cells
• they don't break down

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Which of the following is the best description of what homeostasis means?

• Maintaining an internal balance
• Obtaining and using energy
• Responding to your environment
• Being able to produce an offspring.

True or False: The majority of the scientific community agrees that viruses are living.

• True
• False

Enzymes are capable of increasing the rate of a chemical reaction within a living cell.  Enzymes accomplish this through which of the following means?

• reducing the number of products   
• reducing the activation energy
• increasing the temperature of the cell
• increasing the concentration of reactants 

Liam and Abigail are working on a science project. They learn that enzymes provide a site where reactants called substrates can be brought together in an enzyme-catalyzed reaction. The site is called the

• enzyme substrate complex.

• reaction site.

• active site.

• lock and key.

Jackson is trying to unlock a special box that only opens with a specific key. Each key only fits one lock.  What is this concept called?

• reusablility

• denaturation

• specificity

• fragility