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Why is Respiration important for living organisms? (3)

Respiration releases Energy(1), Energy in the form of ATP(1) and this is needed for life of an organism to bring about various moments and growth (1).

Answered by Holly L. • Biology tutor

6966 Views

How does oxygen enter the body?

Breathe in, you can feel your chest expanding and your body lifting up. When you breathe in, oxygen in the air around us moves into our lungs. The air moves through tubes called bronchi which branch, like...

Answered by Georgia S. • Biology tutor

2848 Views

Why is there both cyclic and non-cyclic photophosphorylation in photosynthesis? (A level)

Non-Cyclic photophosphorylation is a linear process involving the entire electron transport chain. The products of non-cyclic photophosphorylation are ATP (generated by a build up of H+ inside the ...

Answered by Flo A. • Biology tutor

13584 Views

describe the function and structure of the cardiovascular system

function;to pump oxygenated blood to respiring tissuesto remove waste products such as carbon dioxideprovides nutrients to tissues regulation of body temperate - via vasoconstriction and vasodilation

Answered by Paula M. • Biology tutor

1805 Views

Describe the differences in the structure of an artery, vein and capillary?Explain the functional use of their structures??

Both veins and arteries have a three layered structure - tunica intima (endothelium and the inner layer),tunica media (muscle layer) and tunica externa ( mainly contains collagen and connective tissues).A...

Answered by Anu G. • Biology tutor

2153 Views