Created by StemPy LabA secretory protein is made by ribosomes on the rough endoplasmic reticulum. It is packed into vesicles and passes through the Golgi apparatus. Which description of this route is correct?
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← Two statements about the membranes of a eukaryotic cell are given below.
Statement I: Mitochondria, chloroplasts and peroxisomes are not counted in the endomembrane system, because their functions are not coordinated with those of the endoplasmic reticulum, Golgi complex, lysosomes and vacuoles.
Statement II: In plant cells, the tonoplast moves a number of ions into the vacuole against their concentration gradient, so their concentration is much higher in the vacuole than in the cytoplasm.Read the following statements about cell structures.
(i) A mitochondrion is bounded by two membranes.
(ii) A chloroplast is bounded by two membranes.
(iii) The nucleus is bounded by two membranes.
(iv) A vacuole is bounded by two membranes.
(v) A ribosome is bounded by two membranes.
(vi) A centriole is bounded by two membranes.
How many of the statements above are correct? →
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