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Oxana [17]
3 years ago
12

What are three main functions of stems?

Biology
1 answer:
insens350 [35]3 years ago
6 0
1. Support for and the elevation of leaves, flowers and fruits. 2. Transport of fluids between the roots and the shoots in the xylem and phloem. 3. Storage of nutrients. Hope this helps!!
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An actin-binding protein called cofilin binds preferentially to ADP-containing actin filaments rather than ATP-containing actin
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Answer:

Cofilin binds to older actin filaments

Explanation:

Microfilaments (also called actin filaments) are a class of protein filament common to all eukaryotic cells, which consist of two strands of subunits of the protein actin. Microfilaments form part of the cell's cytoskeleton and interact with the protein myosin in order to allow the movement of the cell. Within the cell, actin may show two different forms: monomeric G-actin and polymeric F-actin filaments. Microfilaments provide shape to the cell because these filaments can depolymerize (disassemble) and polymerize (assembly) quickly, thereby allowing the cell to change its shape. During the polymerization process, the ATP that is bound to G-actin is hydrolyzed to ADP, which is bound to F-actin. ATP-actin subunits are present at the barbed ends of the filaments, and cleavage of the ATP molecules produces highly stable filaments bound to ADP. In consequence, it is expected that cofilin binds preferentially to highly stable (older) filaments ADP-actin filaments instead of ATP-actin filaments.

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What is the dorsal surface called in four legged animals?
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The dorsal surface in for legged animals is called superior
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Dna damage can occur as a result of exposure to chemicals or ultraviolet radiation. what happens during nucleotide excision repa
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