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WorksheetsCellular Respiration and Properties of Water
Total questions: 17
Worksheet time: 9mins
In terms of ATP production, which process results in the most stored energy?
A. Aerobic respiration
B. Anaerobic respiration
C. Fermentation
D. Photosynthesis
Which statement best describes the process that takes place during cellular respiration?
A. Necessary nutrients are circulated.
B. Hydrogen is used to synthesize glucose.
C. Metabolic wastes are absorbed.
D. Chemical energy is converted into a usable form.
Which equation best describes aerobic respiration?
A. Glucose yields energy and lactic acid.
B. Glucose and energy yield carbon dioxide.
C. Glucose and oxygen yield energy and carbon dioxide.
D. Glucose and oxygen yield energy, carbon dioxide, and water.
A weightlifter is using heavy weights in short bursts for a competition. Because his muscle cells are not able to take in enough oxygen to make very much ATP the weightlifter begins to get fatigue in his muscles. Which of the following processes is most likely going on in the muscles of the weightlifter as he competes in his event?
A. As the cells run out of oxygen they switch to anaerobic respiration, which allows the cell to make small amounts of ATP in the absence of oxygen.
B. As the cells run out of oxygen, they die off gradually and the weightlifter's muscles have fewer contracting muscle cells.
C.The cells will never run out of oxygen if the weightlifter is breathing.
D. As the cells run out of oxygen, they will continue to make the same amount of ATP, since oxygen is not required to make ATP.
Cellular respiration is the process that allows living organisms to extract energy from nutrients. What is the main difference between aerobic and anaerobic respiration?
A. Aerobic respiration uses oxygen, while anaerobic respiration does not.
B. Anaerobic respiration uses oxygen, while aerobic respiration does not.
C. Aerobic respiration produces carbon dioxide, while anaerobic respiration does not.
D. Anaerobic respiration produces carbon dioxide, while aerobic respiration does not.
Which statement accurately describes the way that adenosine triphosphate (ATP) transfers energy within a cell?
A. ATP molecules break up sugars such as glucose into energy-rich compounds like lactose.
B. ATP molecules split carbon dioxide molecules, and the carbon is used as fuel by the cells
C. ATP molecules ionize oxygen molecules, which give up electrons that can then be used for energy.
D. An ATP molecule reacts with water and loses a phosphate group, breaking a bond and releasing energy.
Small insects can walk across the surface of calm water. Their feet push the surface of the water down slightly, somewhat like a person walking across a trampoline, but they do not break the surface. What is the best explanation for why this happens?
A. The insects are light enough so that they do not break the hydrogen bonds holding the water molecules together.
B. The insects actually use their wings to hover slightly above the water's surface and they only skim it with their feet.
C. The insects' feet are non-polar, so they are repelled by the polar water molecules and are pushed away from the water's surface.
D. The insects are small enough to see the individual water molecules, so they are able to step carefully from one molecule to the next.
Once ice forms on a lake in winter, the water underneath the ice remains about 4°C, even if the air temperature just above the ice is far below freezing. What property of water helps keep the water below the ice from freezing?
A. When covalent bonds form between the water molecules in ice, they give off heat.
B. Each water molecule stores heat in its covalent bonds during the summer and releases it slowly over the winter.
C. The hydrogen bonds that form in the ice create a lattice structure, and the resulting extra space enables the ice to act as insulation.
D. The unstable hydrogen bonds between the water molecules break and push the molecules around, which keeps the water from freezing.
All living things need to transport molecules from one place to another in order to carry out necessary life functions.
Living things often transport these molecules by dissolving or dissociating them in water and then moving the
resulting solution from place to place. What characteristic must a molecule have for it to form a solution in water?
A. It must be at least as small as the polar water molecules.
B. It must be nonpolar to be able to react with the polar water molecules.
C. It must be at least slightly polar to be able to react with the polar water molecules.
D. It must be covalently bonded in order to form new bonds with the polar water molecules.
1)When water in a lake freezes, the ice that forms floats on top of any water that is still liquid. Why does the ice float?
A. Ice is less dense than liquid water, so it floats.
B. Air bubbles trapped in the ice cause the ice to float.
C. Ice crystals are polar, and they float on top of non-polar water.
D. The ice forms at the top of the water, so it stays there and floats.
When the oxygen atom in one water molecule is close to a hydrogen atom in another water molecule, what is most likely to happen?
A.The water molecules will draw toward each other.
B.The two water molecules will form a larger molecule.
C. The like charges of the water molecules will repel each other.
D.The two water molecules will gain energy and vaporize, becoming water vapor.
When trees pull water in through their roots, they must then move the water up to their leaves in order to carry out photosynthesis. Since the water molecules cling to each other and to the inner surface of the xylem, the water can pull itself up through the tree by capillary action. Which property of water molecules allows them to cling together?
A. Water molecules are polar molecules.
B. Water molecules are small molecules.
C. Water molecules have an odd number of atoms.
D. Water molecules have covalent bonds between atoms.
In Florida, daytime and nighttime temperatures usually only differ by 5 to 10°C, while temperatures in the desert often differ by as much as 40°C. What role does water play in keeping temperatures in Florida from fluctuating dramatically?
A. Bodies of water store heat during the day and release it at night.
B. Humid air releases heat as it rises, keeping temperatures constant.
C.Evening rain brings heat from the upper atmosphere back to Earth.
D.Water cools the land around it so that it never gets as hot as a desert.
A water molecule:
a. interacts with other water molecules via ionic bonds
b. interacts with other water molecules via covalent bonds
c. forms hydrogen bonds with other water molecules as a result of the polar nature of the molecule
d. forms hydrogen bonds with other water molecules as a result of the non-polar nature of the molecule
You are sitting by a lake. You drop a leaf on the lake and notice that it floats on the top of the water. Which of the following properties of water could help explain what you observed?
a. It has a strong surface tension.
b. It can dissolve large quantities of solute.
c. It has a high specific heat.
d. It is hydrophobic.
You are a forensic scientist and have been asked to identify a white, unlabeled powder recovered from the scene of a crime. As a first step, you're interested in learning if the compound is polar or non polar. What should you do and how should you interpret your findings?
A. Try to dissolve the powder in water; if it fails to dissolve it's a polar compound.
B. Try to dissolve the powder in water: if it fails to dissolve it's a non polar compound.
C. Try to ignite the powder; if it burns it's a polar compound.
D.Try to dissolve the powder in oil; if it dissolves it's a polar compound.
The many amazing properties of water can be attributed to:
A. The covalent bonds between the oxygen and 2 hydrogen atoms
B. The hydrogen bonds between the oxygen and 2 hydrogen atoms of the same molecule
C. The structure formed between water molecules as a result of the intermolecular hydrogen bonds
D. Who cares, water is just water.
