Ch 10.1 Quiz

Living things need energy to carry out their life processes. Animals get this energy from food through a process called cellular ​ (a)   . The first stage, glycolysis, occurs in ​ (b)   conditions, or without oxygen. The second stage, called the Krebs cycle, and the third stage, electron transport, require the presence of oxygen, and are therefore ​ (c)   .

• respiration
• photosynthesis

• fermentation

• anaerobic
• aerobic
• digestion

Yabine is studying energy from food in her nutrition class. She learns that fats, proteins, and carbohydrates can store different amounts of energy because they have different chemical ​ (a)   and different numbers of energy-storing chemical bonds. Carbohydrates and proteins each release ​ (b)   calories per gram when burned, and fat releases about ​ (c)   calories per gram. The molecule containing the most energy-storing chemical bonds is ​ (d)   .

• structures
• compounds
• 9000
• 4000
• fat
• carbohydrate
• protein

In cellular respiration, energy is trapped in the form of ATP, which is used for cellular work, and acts as a "currency" for energy transfers within a cell. Which everyday item functions in a way similar to ATP?

• an electric generator, because it produces electrical energy from a fuel to run cell processes

• a pump, because it moves molecules from one side of a membrane to another

• a rechargeable battery, because it can store energy and then release it

• an electric motor, because the charge difference spins the ATP, which allows for cellular work

Which BEST describes the process of aerobic cellular respiration?

• a process that uses nitrogen molecules from the air to make nitrogenous compounds in living things

• a process of energy conversion that releases energy from food in the presence of oxygen, forming new compounds

• a process of energy conversion that captures light energy and transforms it into chemical energy

• a process of energy transfer that converts liquid water into water vapor

Cellular respiration is balanced by photosynthesis; the two processes work together to maintain the cycling of carbon and oxygen among Earth systems. What describes the roles of carbon dioxide and water in these two processes?

• Carbon dioxide and water are the reactants of both processes.

• Carbon dioxide and water are the products of both processes.

• Carbon dioxide is a reactant of photosynthesis; water is a reactant of cellular respiration.

• Carbon dioxide and water are the reactants of photosynthesis and the products of cellular respiration.

aerobic

• process that needs oxygen

• process that doesn't need oxygen

• process that needs light

• process that doesn't need light

anaerobic

• process that needs oxygen

• process that doesn't need oxygen

• process that needs light

• process that doesn't need light

What molecule do cells use for energy (like a rechargeable battery)

• ATP

• DNA

• oxygen

• NADP+

In the equation for respiration, what is the "energy"?

• ATP

• glucose

• light

• DNA

Organize the steps of respiration based on how much ATP (energy) they release.

Groups:

(a) small amount of energy

,

(b) large amount of energy

• glycolysis

• Krebs cycle

• electron transport