Semester Exam Review 1

Which of the following is NOT a characteristic of life?

• movement

• made of one or more cells

• respond to a stimulus

• display organization

What do we call the variable that is being tested? It is located on the x-axis and is the one you intentionally change.

• dependent variable

• independent variable

• control

• constant

In an experiment, what is the variable you measure to determine the effects/results? It is located on the y-axis.

• independent variable

• control

• constant

• dependent variable

Which of the following places the steps of the scientific method in order?

• ask a question, experiment, collect information, ask a hypothesis, record and analyze data to draw a conclusion

• Ask a testable question, forma a hypothesis, experiment, collect information, share and publish results

• Ask a testable question, collect information, form a hypothesis, experiment, record and analyze data to draw a conclusion, publish and share results

• record and analyze data to form a conclusion, collect information, form a hypothesis, share and publish results, experiment, ask a testable question

Which type of reaction will absorb heat and make the surroundings feel cool?

• endothermic

• exothermic

Which of the following is true of an enzyme?

• Enzymes are protiens.

• Enzymes are biological catalysts that speed up chemical reactions.

• Enzymes work by lowering the activation energy.

• All of the above.

In the equation, what are the reactants of photosynthesis and the products of cellular respiration?

• glucose and oxygen

• carbon dioxide and water

• glucose and carbon dioxide

• oxygen and carbon dioxide

What is the pH of pure water?

• 3

• 6

• 17

• 7

Which of the following are examples of passive transport?

• osmosis, diffusion, facilitated diffusion

• endocytosis, osmosis and exocytosis

• endocytosis and exocytosis

• sodium-potassium pump

What will happen to a cell if it is placed in a hypertonic solution?

• Water rushes into the cell causing it to swell

• water will rush in and out of the cell in equal amounts

• Water will rush out of the cell causing it to shrink