Principles

Which of the following would not be an example of the principle of Form Fits Function?

Bones that are not subjected to stress lose density.

When your muscles contract to move your body, such as during walking, work is done, and work requires energy. Based on the Law of Conservation of Energy, from where does this energy come?

Chemical energy

From where do cells most directly obtain the energy they need to do work such as muscle contraction?

Energy in ATP (adenosine triphosphate)

Keeping in mind that energy cannot be created or destroyed, but its form can be changed, what happens to excess energy consumed in the food we eat during the day?

Excess calories are stored as fat.

Which of the following would be the best example of the principle of Form Fits Function?

Lower vertebrae support more weight and are thicker than higher ones.

Macromolecules fit in-between which two levels of organization?

Molecule and organelle

Based on the general theme of conservation, which of the following is most likely to happen if an athlete breaks his arm and must wear a cast and not use that arm for six weeks?

Muscles in the injured arm will get smaller because they are not being used.

Moving from simpler to more complex, which level of organization is immediately before (simpler than) the cell?

Organelle

Based on the Biological Hierarchy of Organization, tissues join together to form what structures?

Organs

Based on the principle of Form Fits Function, in which of the following areas would you expect to see the thickest skin?

Soles of the feet

What is the basic unit of measure for energy in living things?

The calorie

Each of the long bones in your legs and arms has a hollow cavity running down its length. Based on the principle of Form Fits Function, which of the following is least likely a reason for this canal?

The cavity is where muscles attach.

Considering the principle of Form Fits Function, which of the following allows muscle cells to shorten or contract to produce movement?

They contain proteins arranged lengthwise that slide back and forth across each other

Which of the following is the correct term for a group of cells that are organized together and share a common function?

Tissue

Which of the following is a good summary catchphrase line for the principle of conservation?

Use it or lose it.