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Many complex molecules are constructed from simpler monomers using a reaction in which a hydrogen atom (H) is removed from one molecule and an oxygen and hydrogen (OH) are removed from another. These atoms become a water molecule and the molecules from which these atoms were removed are connected with a covalent bond. Which of the following is the name of this reaction?

Which of the following unifying theories suggests that all organisms consist of cells, and that all cells come from other cells.

Who described evolution by natural selection? Define and explain the difference between natural selection and evolution.

3.3 Suggest a reason that the poet has chosen not to use full sentences in line 18. (2)

An enzyme is no longer functioning within one of your cells. You discover that one of the amino acids was replaced with another, which has caused the enzyme to misfold. What is the source of this problem?

Which of the following is the monomer of nucleic acids?

A polymer is constructed from glucose monomers, which have the chemical formula C6H12O6. If the chemical formula of the polysaccharide is C24H42O21, how many times has dehydration synthesis occurred?

  SUBTOTAAL VRAAG 6:   20 TOTAAL AFDELING C: 40  

Which of the following is defined as a hypothesis that has been tested, and NOT proven incorrect?

  VRAAG 2 TEKS B  Spotprent geteken deur Fred Mouton: Die Burger.     Druk REGS op die knoppie om die spotprent in ‘n nuwe tab oop te maak.