18. A___ is a chemical substance that organisms require to live.

What would happen if there were no buffers in human cells

g. breakdown of glycogen to glucose 2. breakdown of glucose to pyruvate 3. synthesis of glucose from pyruvate 4. synthesis of glycogen from glucose Match the following pathways with the correct definition. A. gluconeogenesis B. glycogenolysis C.

For mitosis to occur the cell must satisfy two requirements

Three types of lipids and their functions

An object is at rest. At five seconds, someone comes over and pushes the object forward with a force of 10 N. Which of the following choices describes the force needed to keep the object in static equilibrium?

Which of the following is a need of most plants? A. To release water through their leaves. B. To take up oxygen from the environment. C. To capture sunlight to perform photosynthesis. D. To release carbon dioxide to the environment.

Which occurs during translation?

What is the arrangement of the earth, moon and the sun during a total lunar eclipse in December

the esophagus, stomach, and small intestines all function together. which level of organization is being described

A muscle cramp is a sudden, painful contraction of a muscle, during which movement is difficult. What is happening at the cellular level during a muscle cramp? A. The proteins in the myofibrils become denatured, preventing relaxation. B.