They can't absorb nutrients and water from the soil.14. According to the passage, chlorophyllisA. a way to take pictures of plantsB. a plant that makes foodC. a kind of leavesD. something that helps a plant make food15. Which o the following is the main idea of the passage?A. ...
C. By using the chlorophyll in their leaves. D. By producing food.()5. According to the passage, which statement is TRUE about the roots? A. They grow toward the sky. B. They fix the plant to the soil. C. They have only one purpose. D. They can't absorb food or water from ...
,not just in autumn.These leaves have chlorophyll deep within then.However,they also have a lot of red or purple chemicals.So they don't look as green as other leaves. 答案(1)考查短语。句意:叶子里充满了不同的绿色化学物质。根据空后different green chemicals(不同的绿色化学物...
spanning red to blue light. This meant that they could monitor energy transfer between chlorophylls, which absorb red light, and carotenoids, which absorb blue and green light.
By using the chlorophyll in their leaves.D. By producing food.13. According to the passage, which statement is TRUE about the roots?A. They grow toward the sky.B. They fix the plant to the soilC. They have only one purpose.D. They can't absorb food and water from the soil.14. ...
During winter,there is not enough light or water for photosynthesis.The trees will rest and begin to shut down their food-making factories.The green chlorophyll disappears from the leaves.As the bright green fades away,we begin to see yellow and orange colors.(39)D We just can't see them...
Some wavelengths in the spectrum of light are absorbed by leaves, flowers and feathers, or whatever, and others are reflected and picked up by our eyes. The chlorophyll of leaves reflects the green wavelengths. When they die back in autumn, other pigment molecules show...
plant species as food, and large environments formed of plants contribute oxygen to the Earth's atmosphere – the Amazon rainforests create around 20 percent of the world's oxygen. Their leaves or leaf substitutes contain chlorophyll, the site of photosynthesis, which contributes to their green ...
The green pigment chlorophyll allows leaves to act as solar panels. This sunlight-gathering role, as you probably know, is essential to photosynthesis. The underside of the leaves are covered in tiny stomata, microscopic holes that open and close like a door. Carbon dioxide goes in, oxygen ...
(photosynthetic pigments other than chlorophyll a), the presence of which gives the seaweeds their characteristic colors, a concept known as chromatic adaptation. Because green light penetrates deepest in coastal waters and the accessory pigments of red algae absorb mostly green wavelengths, red algae ...