Bellringer 2/12, 2/13

Jennie is conducting an investigation in which she observes how water moves through a celery stalk. She adds red food coloring to a beaker of water and observes the celery after 20 mins. The part of the stalk above the waterline is noticeably redder than it was before jennie added the food coloring. What property of water is most directly responsible for this observation?

• cohesive behavior

• versatility as a solvent

• expansion upon freezing

• ability to moderate temperature

The figure shows an experiment on photosynthesis. Rebecca observed that the part of the leaf outside the bottle showed the presence of starch. When the same experiment was repeated without potassium hydroxide (KOH) in the bottle, the whole leaf showed the presence of starch. What can rebecca correctly infer about potassium hydroxide?

• it absorbs carbon dioxide

• it releases oxygen

• it produces water

• it dissolves cells

Four substances are important for both photosynthesis and cellular respiration: oxygen, glucose, carbon dioxide, and water. What is the best explanation for how both processes use these substances?

• Photosynthesis uses carbon dioxide and oxygen to make water; respiration uses glucose and oxygen to make carbon dioxide and water

• Photosynthesis uses carbon dioxide and water to make glucose and oxygen; respiration uses oxygen and water to make glucose and carbon dioxide

• Photosynthesis uses glucose and carbon dioxide to make water and oxygen; respiration uses glucose and oxygen to make water and carbon dioxide

• Photosynthesis uses carbon dioxide and water to make glucose and oxygen; respiration uses glucose and oxygen to make carbon dioxide and water

Members of which kingdoms are capable of conducting photosynthesis?

• Animalia, Bacteria

• Protista, Bacteria

• Archaea, Fungi

• Fungi, Protista

Cellular respiration is the process that allows living organisms to extract energy from nutrients. What is the main difference between aerobic and anaerobic respiration

• Aerobic respiration uses oxygen, while anaerobic respiration does not

• Anaerobic respiration uses oxygen, while aerobic respiration does not

• Aerobic respiration produces carbon dioxide, while anaerobic respiration does not

• Anaerobic respiration produces carbon dioxide, while aerobic respiration does not

Biological macromolecules are organized into four major categories. What type of macromolecule contains phosphorus as part of a phosphate group?

• Lipids

• Proteins

• Nucleic Acids

• Carbohydrates