How do some hormones affect only certain cells in the body but not others? 1.only cells having specific receptors for a hormone can respond to the hormone's presence. 2.the hormones only go to some cells in the body but not to others. 3.special molecules on cells that are not affected break down the hormone before the cell can recognize it. 4.some cells have the wrong temperature to respond to the hormone.

1. environmental factors, such as ph and temperature, can affect the function of an enzyme. a. true b. false 2. which of the following is an organic molecules (ex. vitamins) that an enzyme? a. coenzyme b. product c. active site d. substrate 3. how do enzymes effect the speed of a chemical reaction? a. they speed it up b. they slow it down c. they have no effect on the speed of a reaction 4. during a chemical reaction, an enzyme is used up so that it can only be used one time. a. true b. false 5. which of the following results from a chemical reaction that is catalyzed by an enzymes? a. active site b. product c. substrate d. coenzyme

Isolated volcanic peaks on the ocean floor are

The diagram below represents a chloroplast found in a typical plant cell. which of the following processes occurs inside this structure? question 8 options: a oxygen is produced b sunlight is trapped c glucose is produced d all of the above.