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Science Test
Question | Answer |
---|---|
Which molecule supplies the energy for cellular function ? | ATP |
Which of the following gases do plants use in photosynthesis ? | Carbon Dioxide |
Which gas is forming in the test tube above ? | Oxyen |
Which of the following is broken down in the body to release energy | Sugar |
Which of the following is produced when sugar is digested in an animal cell | Carbon Dioxide |
During photosynthesis in plants, what is the source of the carbon in the sugar molecule (C6,H12,O6) | Carbon dioxide in the air |
Which of the following processes allows the cells of an organism to use carbon from the environment | Photosynthesis |
Which molecule in a plant calls first captures the radiant energy from sunlight | Chlorophyll |
In aerobic respiration, the Krebs cycle (citric acid cycle) takes place in | Mitochondria |
Which of these statements is best illustrated by the diagram | Plants can take in carbon dioxide from air or water |
From Earth's atmosphere, carbon dioxide is used by plants, algae, and cyanobacteria during the process of | Photosynthesis |
If ancient volcanoes gave off the same gases, which gas would have been most helpful in the development of early life-forms that could carry out photosynthesis | Co2 |
What happens to most of the light energy during photosynthesis | It is transformed into chemical energy |
A student pick up Ball A off a shelf and threw it. | Light energy from the sun -- chemical energy in food -- chemical energy in the student -- mechanical energy in the ball |
A group of students placed spinach leaves in a beaker of water in full sunlight. After several hours, small bubbles appeared on the leaves. These bubbles probably consisted of | O2 |
What do plants need to make their food | Sun |
In which part of a plant does photosynthesis the place | Leaves |
Photosynthesis is a chemical reaction that converts | light energy into chemical energy |
Through cellular respiration, plants get energy from glucose, the energy stored in glucose originally came from | The sun |
The process of cellular respiration occurs in | Both plant and animal cells |
In the oxygen cycle, which group of organisms replenishes a large portion of the atmospheric oxygen supply | Plants |
How the organisms released oxygen into Earthms atmosphere | The cells produced sugar and oxygen during photosynthesis |
What gases do arrows 1 and 2 represent | Arrow 1 is carbon dioxide, and arrow 2 is oxygen |
Which statement best describes the process of respiration | Oxygen and sugar are used in the process that provides energy to cells; water and carbon dioxide are its waste products |
Which statement best describes the roles of photosynthesis and respiration in the carbon cycle | Respiration adds carbon to the atmosphere, while photosynthesis removes carbon from the atmosphere |
Photosynthesis includes processes that require light and processes that do not. Which statement best explains why adenosine triphosphate (ATP) is used in both processes | ATP stores energy that plant cells absorb from light and releases the energy when it is needed to produce sugars |
Which of the following best describes how plants use the energy they receive from sunlight | They produce their own food |
Students are studying the process of photosynthesis in plants. Which of the following is a product of photosynthesis | Sugar |
Which of the following materials are direct products of photosynthesis | Oxygen and sugar |
If a mutation occurred that stopped production of enzyme A, but not of enzyme B what color flower petals would be produced | Red |
Cyanide is a powerful poison because it inhabits an enzyme in mitochondria, preventing the transfer of energy during one of the steps in cellular respiration. The poison would directly affect the production of which of the following molecules | ATP |
A caterpillar eats an oak leaf. Which of the following best describes the energy transfer in this situation | Energy is transferred from the leaf to the caterpillar |
Which process do the animals in the food web use to convert energy from food into ATP | cellular respiration |
Which of the following most likely happens in the cells of a person running in the Boston Marathon | The respiration rate increases to produce more ATP |
Which of the following statements correctly describes the processes of photosynthesis and cellular respiration | Photosynthesis stores energy for cells, and cellular respiration releases energy for cells |
Which of the following statements best explains the difference in carbon dioxide concentrations | The amount of photosynthesis by plants is lower in winter than in summer |
In periods of hot,dry weather, the pores on the leaf surfaces of most plants close in order to reduce eater loss during the day. When these pores are closed, plants cannot take in carbon dioxide. As a result, the rate of which of the following processes d | Photosynthesis |