Multiple choice question for understanding the laws of thermodynamics.

According to the first law of thermodynamics, what cannot be created or destroyed? 1) sugar 2) carbon 3) matter 4) energy

Insight into a cell membrane and the secretory pathway.

What would be the effect on the size of a cell membrane when the secretory pathway is active? Will this cause a problem for the cell, and what might a cell do to keep this from becoming a problem?

Photosynthesis and cellular respiration

You have a goldfish pond in your back yard. It is stocked with goldfish and water plants. There are aerobic bacteria in the pond also. What is happening with the oxygen and carbon dioxide levels in the water during a 24 hour day (daylight and darkness)?

Stomata in the leaves of a tree

For some reason the stomata in the leaves of a maple tree become stuck in the open position. What will happen to the tree and why?

Energy Harvest

When eating a candy bar for energy, do your cells harvest 100% of the energy?