You cannot grow anything in the darkness. Mushrooms and fungi are an exception of course, but for any plants with green chlorophyll coursing through their leaves, light is mandatory. Why Plants Need Light? Let's refresh that memory with a few basic concepts. Asking why plants need light is ...
In the 20th century we discovered that plants carry out a remarkable chemical process called photosynthesis, meaning "to create from light." And photosynthesis, as it turns out, is the basis of life as we know it. In photosynthesis, plants absorb the energy of light with a green pigment ...
故填light。(8)根据First,plants take in the water and CO₂. (首先,植物吸收水和二氧化碳。)可知此处需用take,构成take in表示"吸收"。故填take。(9)根据Finally,the plants make the sugar as their own food and make O₂ that humans need.(最后,植物把糖作为它们自己的食物并制造...
Why do plant roots absorb water mainly by osmosis? Why do grasses contain a higher concentration of chlorophyll? How well would a plant grow under pure yellow light? Discuss why plants have two types of chlorophyll instead of just one. How does this benefit them? Enumerate a reason why it...
change easily on their light-colored petals. Capillary action first begins in the roots. The roots absorb water and nutrients from soil and support the stems of the plant. Food coloring used in this experiment will not harm the plant, but sometimes a plant’s roots can absorb harmful ...
they rely on excreting enzymes outside their bodies and into their food which breaks down the substrate so they can absorb it. By doing so, they also release minerals, sugars, amino acids and many other compounds for other microbes and plants to utilize. Fungi are mostly saprophytes or decom...
Everybody knows that green leaves absorb carbon dioxide and release oxygen in the process of photosynthesis — that is why large forest zones are so important for the planet. It seems logical to endow useful qualities and indoor plants. It is often said that they filter the air — and on ...
Places in the landscape that hold standing water create a problem for the homeowner, because standing water can harbor mosquitoes that spread disease. Also, areas of standing water are difficult to mow and maintain--so planting plants that absorb standin
故填the light。3. 细节理解题。根据第四段You may wonder how they make their own food using the three things.First, plants take in the water and CO2. Then their leaves absorb sunlight. Finally, the plants make the sugar as its own food and make O2 that humans need.(你可能想知道它们...
Why green? Plants are green, and without them the earth wouldn’t be such a lovely home for us human beings. Sometimes people call ours a “throw-away society”. That means we are always throwing away old things and buying new ones. (A) If you no longer need something, someone else ...