7th Grade Science - Stimulus and Response, Xylem and Phloem, Wilting - Turgor Pressure
Quiz by Carolina Carner
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22 questions
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- Q1Which of the following shows how the plant above would grow if the pot were knocked on its side and left for several weeks assuming light is not a factor?DCAB30s
- Q2The pictures above show a turgor pressure demonstration using stalks of celery in different salt solutions. The difference between S and T is a result of which of the following forces?S demonstrates more turgor pressure because of forces causing growth towards the sun.T demonstrates more turgor pressure because of water pressure inside the cells.T demonstrates more turgor pressure because of forces causing growth towards the sun.S demonstrates more turgor pressure because of water pressure inside the cells.30s
- Q3Many plants are known to turn toward a stimulus. Sunflowers are known for their ability to track the movement of the sun. This behavior is known asThigmotropismGravitropismHydrotropismPhototropism30s
- Q4The process of photosynthesis requires a lot of energy. By dropping their leaves in autumn, trees can preserve much of their energy and nutrients to make it through the long winter months. Which external stimulus causes trees to respond to the coming winter?Animals begin collecting seeds and nuts produced by the treeOther plants begin to drop leaves and go dormantLength of daylight becomes shorterNutrient-producing bacteria that live in the soil begin to die off30s
- Q5Organisms can respond to external stimuli in their environment internally. Which of the following correctly identifies an external stimulus that triggers an internal response?Being frightened causes muscles to tenseHunger causes eating foodThirst causes drinking waterFever causes sweating30s
- Q6A student waters a plant every day with the correct amount of water to ensure the plant’s survival. After watering daily, he completely covers the plant with a dark box containing a 2 cm hole on one side of the box. How will the plant respond?The plant will bend toward sunlight.The plant will grow and lift up the box.The plant will wilt and eventually die.The plant will experience no change.30s
- Q7An organism migrates due to a change in nutrient levels within the environment. The organism is responding toreproductioninternal stimuliexternal stimuli30s
- Q8Which of the following is an example of an organism’s response to an internal stimulus in order to maintain homeostasis?A rabbit runs and hides from a predatorA bird forages for food because it feels hungryA bat hibernates in winter to conserve energyThe temperature of a plant increases in the sun30s
- Q9An organism is thirsty so it tries to find water. This is an example ofHydrotropismA response to internal stimuliAn immune response30s
- Q10Blood sugar levels change in the body causes a students stomach to growl. Is the blood sugar levels changing an example of internal or external stimuli?internalexternal30s
- Q11If you turn a light on pupils of the eye will quickly dilate (shrink). Turning the lights on is an example of which stimulus?externalinternal30s
- Q12Touching a hot stove and you move your hand quickly away is an example of what kind of stimulus?externalinternal30s
- Q13A dog is thirsty so he goes and drinks some water is an example of what kind of stimulus?externalinternal30s
- Q14Bob is hungry so he eats 3 slices of pizza is an example of internal or external stimuli?internalexternal30s
- Q15A Touch Me Not plant closes in response totouchlightgravity30s