Question

1. sep evaluate models cells are often compared to factories. how is this comparison useful, and how might it fall short? propose a different model that might also explain how cells function. 33. sep construct an argument a classmate states that because multicellular organisms have specialized cells, each cell type has different dna. use the cell theory to construct an argument that correctly explains why your classmate is either right or wrong.

Explanation:

Question 32

The comparison of cells to factories is useful as factories have different departments (like organelles in cells) with specific functions, such as assembly lines (ribosomes making proteins). It falls short as cells are living and can self - replicate, while factories are inanimate. A possible alternative model could be a city, where different cell parts are like different city structures. For example, the nucleus is like the city hall (controlling activities), mitochondria are like power plants (producing energy).

Question 33

The classmate is wrong. According to cell theory, all cells in a multicellular organism come from pre - existing cells through cell division. All cells in a multicellular organism have the same DNA. Specialization occurs due to differential gene expression, not different DNA.

Answer:

Question 32

The comparison of cells to factories is useful for understanding the division of labor within cells. It falls short because cells are living entities with self - replication capabilities. A city could be a different model for cell function.

Question 33

The classmate is wrong. All cells in a multicellular organism have the same DNA; specialization is due to differential gene expression.