Answer Happy

please help me with these 3 questions!
1) Human cells can synthesize _______________ using________________ .
a) proteins; amino acids
b) proteins; nucleotides
c) vitamins; the electron transport chain
d) minerals; using dehydration synthesis reactions
2) A mutation that leads to a conformational change in aprotein would most likely lead to ________________.
a) changes in the sugar sequence of the protein
b) a protein that has retained its function
c) a protein that has lost its normal function
d) a protein that has lost its ability to be broken down intopolymers
3) Calcium pumps require energy to move calcium ions out ofthe cytoplasm to maintain electrochemical gradients. This is anexample of what process?
a) osmosis
b) endocytosis
c) passive transport
d) active transport