Exam 4: The Energy of Life

The wood in a match is made of cellulose,a polymer of glucose molecules.When you light the match heat and light are given off,indicating that a(n)________ reaction is occurring.

In the section "Investigating Life: Does Natural Selection Maintain Cystic Fibrosis?," which infection did researchers hypothesize that the CFTR protected cystic fibrosis patients against?

Reactions that break down substrates do not release any energy because enzymes are used.

Competitive inhibition of enzymes occurs

Which statement is not directly connected with the law about energy being conserved?

The CFTR receptor moves chloride ions out of a cell by active transport.This is an example of

Enzymes speed chemical reactions by

Potential energy is the energy of motion.

When the concentration gradient driving osmosis becomes larger,osmosis occurs at a faster rate.

The diffusion of water across a selectively permeable membrane is

Enzymes speed up reactions by lowering the activation energy of a reaction.This is analogous with

Entropy is a measurement of

Dye placed at one end of a beaker of otherwise pure water will 

The chloroplasts in plant cells create energy.

When NaCl (table salt)forms,sodium (Na)loses energy by ________ and chlorine (Cl)gains energy by ________.

If a lion eats a gazelle,before the molecules have been broken down by its cells,the lion has gained

Oxidation is

Simple diffusion

The reactants of photosynthesis are

In which case is the energy involved farthest from being kinetic energy?