The science of how Messi keeps the ball close to himself photo credit: ZaleDesigns Messi is a magician with the ball at his feet. He's in my opinion the best player in the sense that he can control the ball so well, runs so fast with the ball & changes the direction at full speed like it's a walk in the park. For starters he started playing very early (at 3) which is crucial if you want to be a good player. In that aspect, he's God gifted as he had dribble skills which is genetic in my opinion. Height He is short which means a low center of gravity so it's difficult to push him off the ball. That's why we see that anyone rarely can topple him down, instead players much larger than him lose possession to him. So his short height suits his style of play & is a blessing in disguise. Change of pace Messi changes his pace really well. He starts slow and runs directly at the defender which means the defender has to stop & focus on him. When he reac...
Biology - Transportation in Plants
Introduction
The plants have low energy needs, as they use relatively slow transport systems.
Plant transport systems move energy from leaves and raw materials from roots to all their parts.
The xylem (tissue) moves water and minerals obtained from the soil to all other parts of the plants.
The phloem (tissue) transports products of photosynthesis from the leaves (where they are synthesized) to other parts of the plant.
Movement of Water in Plants
Water moves into the root from the soil and then steady it moves into the root xylem, creating a column of water, which is progressively pushed upwards.
Evaporation of water molecules from the cells of a leaf (see the image given above) creates a suction process, which pulls water from the xylem cells of roots; this process keeps going on.
The loss of water in the form of vapor from the leaves (i.e. aerial parts) of the plant is known as transpiration.
Transpiration, likewise, helps in the absorption and upward movement of water and minerals dissolved in it from roots to the leaves.
Transpiration also helps in the temperature regulation (in plants).
The transport of soluble products of photosynthesis is known as translocation, which occurs in the part of the vascular tissue known as phloem.
Along with photosynthesis products, the phloem also transports amino acids and other substances, which are ultimately delivered to roots, fruits, seeds, and to growing organs.
Comments
Post a Comment