Biology: Macromolecule Review Worksheet
Name:
A. Visit this site: http://workbench.concord.org/web_content/unitIV_revised2/tree_life_wrkst3.html
Follow the instructions for a review of macromolecules of life
B. Answer the following questions.
1. Connect these two boxes
by circling the correct
arrow. Write beneath the
line how these two are
connected.
2. How do the circles to the
left relate to the boxes
above? Use the same types
of arrows. Start with the
circles and draw right up to
the boxes above, where it is
appropriate. Then explain
your thoughts in the space
beneath the line.
3. How are these boxes to
the left related to the cellular
structures listed in the
circles?
Draw arrows between the
boxes and the circles and
explain your thoughts on
their relationships in the
space at the bottom of the
page.
4. Some people say life is fundamentally all structured the same, while others say there is great diversity even in
very small molecules. What do you think and why?
5. These molecules represent one level of basic building blocks of life. These monomers, or single molecules,
can be joined with other monomers to form larger units (polymers). They can be divided into four groups:
carbohydrates (sugars for energy and structure), lipids (fats for membranes and energy storage), nucleic acids
(information bearers) and proteins (the molecular machines of the cells). Even if you have never had ANY
chemistry at all, you can work on this activity! Try to determine some ways of dividing these molecules below
into four groups. There may be more than one right answer. Number each molecule either 1, 2, 3 or 4.
6. What different kinds of atoms are present in the previous molecules?
7. Imagine that an unwanted bacteria invades a cell. A certain molecule in the cell is capable of grabbing the
bacteria and holding it so a bacteria-destroying macrophage can destroy it. Describe the properties and the
forces of the "bacteria-capturing" molecule that enable it to attach and hold the invader.