Is Roman Catholicism the same as Biblical Christianity?

Ephesians 2:1-10 - “Once you were dead because of your disobedience and your many sins. You used to live in sin, just like the rest of the world, obeying the devil - the commander of the powers in the unseen world. He is the spirit at work in the hearts of those who refuse to obey God. All of us used to live that way, following the passionate desires and inclinations of our sinful nature. By our very nature we were subject to God’s anger, just like everyone else. But God is so rich in mercy, and he loved us so much, that even though we were dead because of our sins, he gave us life when he raised Christ from the dead. (It is only by grace that you have been saved!) For he raised us from the dead along with Christ and seated us with him in the heavenly realms because we are united with Christ Jesus. So God can point to us in all future ages as examples of the incredible wealth of his grace and kindness toward us, as shown in all he has done for us who are united with Christ Jesus. God saved you by his grace when you believed. And you can’t take credit for this; it is a gift from God. Salvation is not a reward for the good things we have done, so none of us can boast about it.  For we are God’s masterpiece. He has created us anew in Christ Jesus, so we can do the good things he planned for us long ago.”

1 Corinthians 3:5-15 & 21-22 - "After all, who is Apollos? Who is Paul? We are only God's servants through whom you believed the Good News. Each of us did the work the Lord gave us. I planted the seed in your hearts, and Apollos watered it, but it was God who made it grow. It's not important who does the planting, or who does the watering. What's important is that God makes the seed grow. The one who plants and the one waters work together with the same purpose. And both will be rewarded for their own hard work. For we are both God's workers. And you are God's field. You are God's building. Because of God's grace to me, I have laid the foundation like an expert builder. Now others are building on it. But whoever is building on this foundation must be very careful. For no one can lay any other foundation other than the one we already have - Jesus Christ. Anyone who builds on that foundation may use a variety of materials - gold, silver, jewels, wood, hay or straw. But on the judgement day, fire will reveal (test) what kind of work each builder has done. The fire will show if a person's work has any value. If the work survives, that builder will receive a reward. But if the work is burned up, the builder will suffer great loss. The builder will be saved (no loss of salvation), but like someone barely escaping through a wall of flames. 

V.21-22 - "So don't boast about following a particular human leader. For everything belongs to you - whether Paul or Apollos or Peter, or the world, or life and death, or the present and the future. Everything belongs to you, and you belong to Christ, and Christ belongs to God."

1 Corinthians 1:18-25 - “The message of the cross is foolish to those who are headed for destruction! But we who are being saved know it is the very power of God. As the scriptures say, “I will destroy the wisdom of the wise and discard the intelligence of the intelligent.” So where does this leave the philosophers, the scholars, and the world‘s brilliant debaters? God has made the wisdom of this world look foolish. Since God in his wisdom saw to it that the world would never know him through human wisdom, he has used our foolish preaching to save those who believe. It is foolish to the Jews, who ask for signs from heaven. And it is foolish to the Greeks, who seek human wisdom (mans religion). So when we preach that Christ was crucified, the Jews are offended and the Gentiles say it’s all nonsense. But to those called by God to salvation, both Jews and Gentiles, Christ is the power of God and the wisdom of God. This foolish plan of God is wiser than the wisest of human plans, and God’s weakness is stronger than the greatest of human strength.