Ch. 9 & 10: Photosynthesis & Respiration

How is ADP converted to ATP?

• both phosphate groups detach

• one phosphate group detaches

• a third phosphate is added

• energy is attached to the third phosphate

Which of the following is a change that does NOT occur in photosynthesis?

• nuclear changes that convert hydrogen and oxygen into carbon

• chemical changes that convert carbs into smaller molecules

• changes that convert light energy into chemical energy stored in carbs

• changes that convert chemical energy into heat and light

Which of the following is one of the most properties of chlorophyll?

• the ability to absorb light

• green color

• presence in chloroplasts

• reactivity with oxygen

What is the purpose of light in the process of photosynthesis?

• provides energy for breaking apart sugars into small molecules

• provides energy for assembling small molecules into sugars

• accepts the energy that is released by small molecules

• accepts the energy that is released by sugars

Which of the following is true?

• Organic matter and water all work together to generate the energy that can be obtained from food.

• Light energy that originates from the sun provides plants to grow, which contains macromolecules.

• Plants obtain energy from nitrogen and other ingredients in fertilizer.

• Plants contain energy-rich nutrients that it draws from the soil.

How is energy released?

• Cells burn food molecules, releasing energy as heat that powers movement while keeping the body at the correct temp.

• Chemical energy is released as food is digested, giving off heat.

• Cells extract and capture the energy in food molecules all at once, then store it later.

• Chemical bonds in food is broken, releasing energy and allowing cells to use the energy.

What is the type of respiration that requires oxygen?

• aerobic

• anaerobic

Which of the following are involved in aerobic respiration?

• glycolysis

• fermentation

• Krebs cycle

• electron transport chain

Where does the Krebs cycle take place?

• the cell membrane

• the nucleus

• the matrix of the mitochondria

• the cytoplasm of the cell

How many molecules of ATP are required to start glycolysis?

• 1

• 2

• 3

• 4