A、are organelles involved in protein synthesis
B、are the cell's main energy source
C、are storage sites for starch
D、are involved in the breakdown of proteins
E、store genetic information in the form of DNA
A、in the nucleus
B、on ribosomes
C、in mitochondria
D、in lysosomes
E、in the Golgi complex
A.ribosomes
B.chromatin
C.proteins
D.histones
E.DNA
A、Engulfment
B、baglike structure
C、RNA and ribosomes
D、cell drinking
A.on free ribosomes in the cytoplasm.
B.in the nucleolus.
C.on ribosomes attached to rough ER.
D.on ribosomes and pass through the Golgi apparatus.
A、lacks ribosomes
B、is active in fat and steroid synthesis
C、is involved in the oxidation of toxins
D、all of the above
E、none of the above
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