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How are pits perforation plates and sieve plates similar in function but different in structure?
Pits are small openings in the wall. Perforation plates are larger openings. A sieve plate looks similar to a sieve that is used in the kitchen. They all allow things to move across cell walls.
What are sieve-tube cells?
In plant anatomy, sieve tube elements, are a specialized type of elongated cell in the phloem tissue of flowering plants. The ends of these cells connect with other sieve tube members, making up the sieve tube, whose main function is transport of carbohydrates in the plant.
When was Nectar in a Sieve created?
"Nectar in a Sieve" was written by Kamala Markandaya and first published in 1954.
What is the purpose of the holes in the phloems sieve plate?
The holes in the sieve plates of the phloem allow for the movement of sugars, nutrients, and other organic compounds from cell to cell. These pores facilitate the flow of materials through the phloem tissue, enabling the distribution of resources throughout the plant.
How are phloem vessels adapted for its function?
1. the sieve tube members form the tubing column through which the food passes 2.the sieve plate has got pits that allow the passage of materials through it from cell to cell Find me at jamesgeotham@yahoo.com
What is the function of the sieve plate on a starfish?
the sieve plate is a filter for the water that enters the "Water Vascular System" in Echinoderms.
How do sugars move from one sieve-tube cell to the next?
by flowing along with water through perforations in the sieve plate
The cells that function with the sieve tubes are the?
Cells containing sieve plates are called sieve tube members, a component of the phloem, which carries sugars produced in the leaves to various parts of the plant. They are characteristic of angiosperms (flowering plants) while gymnosperms (cone-bearing plants) have only sieve cells. Sieve cells and sieve tube members are collectively referred to as sieve elements.
What are sieve cells?
In plant anatomy, sieve tube elements, are a specialized type of elongated cell in the phloem tissue of flowering plants. The ends of these cells connect with other sieve tube members, making up the sieve tube, whose main function is transport of carbohydrates in the plant.
How are pits perforation plates and sieve plates similar in function but different in structure?
Pits are small openings in the wall. Perforation plates are larger openings. A sieve plate looks similar to a sieve that is used in the kitchen. They all allow things to move across cell walls.
What is the meaning of griddle?
An iron plate or pan used for cooking cakes., A sieve with a wire bottom, used by miners.
How is the sieve plate evidence against the pressure flow model?
The presence of sieve plates in phloem tubes allows for bidirectional flow, which contradicts the unidirectional flow proposed by the pressure flow model. The sieve plates also enable some sieve elements to be blocked while others remain functional, challenging the notion of a continuous flow in the phloem.
How is sieve tube different from companion cells?
The sieve tube elements are specialized elongated cells in the phloem that connect end to end forming a tube. The main function of this tube is to transport nutrition in the form of carbohydrates. Sieve cells have no nucleus, ribosomes and cytoplasm, meanin they cannot carry out primary metabolic activities. The companion cells, which are closely associated with the sieve tube elements, carry out the their metabolic functions.
What is the function of underliner plate?
it is the plate under the plate (kea nga UNDER plate!!!) hahaha
Why is a grid sometimes called a sieve?
A grid is sometimes called a sieve because it can be used to strain or separate different components of a mixture, similar to how a sieve is used to separate solids from liquids or smaller particles from larger ones. The grid's structure allows smaller components to pass through while retaining larger ones, mimicking the function of a sieve.
What is the shape of companion cells?
Companion cells are typically elongated and have a dense cytoplasm. They are closely associated with sieve elements in the phloem and play a crucial role in supporting the function of these sieve elements by providing them with nutrients and energy.
What has the author Jimmy Olatokunbo Oloidi written?
Jimmy Olatokunbo Oloidi has written: 'A study of liquid-liquid extraction in a sieve plate column'
