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Student drawings will indicate a central nucleus with 6 neutrons and 6 protons, as well as 6 surrounding electrons in one shell.

Chlorophyll.

A good way to answer this type of question is to use the "COWPAT" Acronym! Here it is: C = Content, O = Omission, W = When, P = Purpose, A = Author, T = Type. This type of question is worth 6 ma...

Firsty, read the question carefully, making sure to underline any key points so that you understand exactly what the question is asking. Look at the marks awarded for the question, this should give you so...

The cell membrane is a semi-permeable structure that surrounds a cell and it is present in plant, animal and bacteria cells. It is semi-permeable because some substances such as glucose and water can pass...