Blood sugar is broken down in muscle fibres to produce mechanical power, and in cells to produce heat.
No, plants don't have circulatory systems as we do. Advanced plants such as dandelions do have a vascular system: xylem to carry water up from the roots and phloem to carry sugars down from the leaves, but there is no pump like our heart.
Many sorts of enzymes at different parts of the system. In the mouth enzymes to break down sugars, in the stomach enzymes to break down proteins and in the small intestine enzymes to break down fats and sugars.
they break down sugars
The digestive system breaks down the sugars from food and puts it into the blood stream and the circulatory system transports that to individual cells for cell respiration
They both help break down food and transport it to the cells.
Amylase breaks down complex sugars into simple sugars.
Sucrose or cane sugar
They break down lactose and other sugars to lactic acid
Yes. Trees for instance draw water up from the ground using concentration gradients through their phloem, found in the middle part of the tree. Then sugars generated in the leaves are transported down the outside or inner bark part of the to the roots down the concentration gradient.
its sugars
Respiration breaks sugars down into carbon dioxide, water, reducing power, and energy.
Lactose functions at the brush border to break down lactose into smaller sugars called glucose and galactose for absorption.