What is a sieve-tube element?
a. the sugar-conducting cell found ...

Question

What is a sieve-tube element?
a. the sugar-conducting cell found in phloem
b. the widened, perforation-containing, water-conducting cell found only in angiosperms
c. the nutrient- and water-absorbing cell found in root hairs
d. the nucleated and organelle-rich support cell found in phloem

Accepted Answer

Hello everyone and welcome to today's video. So today we have that the wide and perforation containing water conducting cells found only in angiosperms are called. So in order to solve this problem we're going to focus in this water conducting part. We're going to identify by the cells presented here that can conduct water or the main function is to conduct water in order to identify the correct answer choice. Beginning by see if two elements or answer choice B. These see if two elements or main function is to transport organic nutrients such as sugar. So these are not going to be mainly involved in the transport of water and we're going to cancel them out. Then we have c companion cells were the main function of these companion cells is to load up these seats two elements with organic nutrients. These are not going to be conducting water and we will also cancel it out. Then we have bundle sheath cells. They have many functions. However very important function that they have is that they're involved in photosynthesis, dividing up the process of photosynthesis in certain types of plants. These are not going to be conducting water again. So we're going to cancel us out. And this all leaves us with vessel elements and these are made up of these dead tissue that contains perforations and since they contain preparations they're very effective at conducting water. This is going to be the final answer to our question and I really hope this video helped you

What is a sieve-tube element? a. the sugar-conducting cell found in phloem b. the widened, perforation-containing, water-conducting cell found only in angiosperms c. the nutrient- and water-absorbing cell found in root hairs d. the nucleated and organelle-rich support cell found in phloem

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