When the woman saw that the tree was good for food, and that it was a delight to the eyes, and that the tree was desirable to make one wise, she took from its fruit and ate; and she gave also to her husband with her, and he ate. Then the eyes of both of them were opened, and they (B)knew that they were naked; and they sewed fig leaves together and made themselves loin coverings. - Genesis 3: 6-7
In every culture there is some type of fall story. The Greeks had Pandora who opened a box releasing evil into the world, the Gnostics believe that the snake was in the right and Adam and Eve were banished because they presented a threat to God, and the Christians, Jews, and Muslims all believe in the Fall of man according to the Genesis three account. It is interesting to note that the Mormons believe that the Fall was necessary to fulfill God's first command (Be fruitful and multiply and fill the earth) and Eve knowing this partook of the fruit.
The true account in Genesis three tells us that Eve was deceived in three ways. First, she believed that the fruit was physically good. Second, it emotionally aroused her. After this she thought that it was necessary for wisdom. She was deceived. If we go to
2 Corinthians 11:3 Paul verifies that Eve was deceived by the Devil and that, as Christians, we can be deceived in much the same way. Our thoughts can be "led astray from a pure devotion to Christ". How? By false teachers, false doctrine, and false spirits we are to apt to accept. Every day we accept things like this. We are told to remain tolerant of homosexual agenda, political propaganda, and health practices that are immoral and dangerous.
As for Adam's part in the fall, the Bible simply says that he ate it. There was no deception involved. He knowingly disobeyed God and broke His command.
As Christians in America today we need to be aware of deception and flagrant disobedience. We need to actively stay away from those things that have the potential to pull us away from Christ. But when we fail, because we will, we should remember the words of Thomas a Kempis,
"Be of more even mind, and gird yourself to greater endurance. All is not lost, although you feel yourself very often afflicted and grievously tempted. You are a man, not God; you are flesh, not an angel. How could you continue always in the same state of virtue when an angel in heaven has failed in this, as also the first man in the garden of Eden?"