1. Through which process would the solute move out the cell?

1. Through which process would the solute move into the cell?

1. In which of the above, would the cell need to expend energy?

1. The cytoplasm of the cell is __tonic to the extracellular fluid. The extracellular fluid is __tonic to the cytoplasm.

1. Because of osmosis, what might happen to this cell if this is an animal cell? Plant cell?

A scientist suspects that the food in an ecosystem may have been contaminated with radioactive nitrogen over a period of months. Which of the following substances could be examined for radioactivity to test the hypothesis? Explain. 

A. the cell walls of the plants growing in the ecosystemB. the hair produced by animals living in the ecosystemC. the sugars produced during photosynthesis by plants growing in the ecosystemD. the fat tissue from animals living in the ecosystemE. all of the above

Create a Venn diagram comparing the 3 cell types

Enzyme Animation Quiz1. Enzymes are

A) lipids.B) proteins.C) carbohydrates.D) nucleic acids.

 2. Which of the following binds to the active site of an enzyme?A) waterB) productC) substrateD) any other enzymeE) none of the above

 3. Which of the following correctly represents the mechanism of enzyme function?A) S + P -> E-P -> E + PB) E + P -> E-P -> E-S -> E + SC) E + P -> E-S -> E-P -> E + PD) E + S -> E-S -> E-P -> E + P

 4. An enzyme can only bind one reactant at a time.A) TrueB) False

 5. An enzyme speeds up a chemical reaction in the cell, but can only be used once.A) TrueB) False

1. Which test tube has conditions that are most like human cells?

2. How does catalase activity change as temperature increases?

3. How does catalase activity change as pH decreases?

4. Explan why high temperature and low pH affects catalase this way.

1. What is the function of the circulatory system? Starting at the pulmonary artery, trace the path of a red blood cell through the heart including the body and lungs.

1. What are the functions of the urinary system? Trace the path of protein vs. urea vs. glucose through the nephron starting at the renal artery and ending at the renal vein or bladder.

1. What is the function of the digestive system? Trace the path of food from the mouth to the toilet.

1. What is the function of the respiratory system? Trace the path of an oxygen molecule from the atmosphere to the blood.

2. What is the function of the nervous system? Trace the path of a nervous signal from sensory receptors to the muscles in your legs when you see a ball and kick it.