6. Which of the following DOES NOT belong to the group? A. Centrioles B. Lysosomes C. Peroxisomes D. Vacuoles 7. Why is a cell considered as the basic structural and functional unit of all organisms? It is because of the A. organelles which are capable to carry out metabolic activities B. oxygen and hydrogen atoms which are combined to make the water molecule (H20) C. cell's ability to generate heat which enables the organism to withstand cold temperature D. carbon atom which readily bond with four other elements to form complex macromolecules of life