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Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN: 9780134580999
Author: Elaine N. Marieb, Katja N. Hoehn
Publisher: PEARSON
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Hydrophobic signal molecules typically ...
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- Typically, our cells have a high concentration of sodium ions outside and a low concentration of sodium ions inside. As sodium ions continue to move out of the cell, the protein that they travel through is called a: a) carrier b) pump c)channel d) vesicle e) aquaproinarrow_forward29 Which kind of macromolecule is regarded as a good candidate for the original self-replicator (or genetic molecule) because it can both cause dehydration synthesis and encode information efficiently? a) Neurotransmitter b) DNA c) Hormones d) Proteins e) RNAarrow_forward34- What is the function of the cytoplasmic streaming in a cell? a) Cellular respiration b) Cellular communication c) Cell division d) Movement of organelles and nutrients within the cell 35- Which organelle is responsible for regulating the levels of calcium ions in a cell? a) Nucleus b) Golgi apparatus c) Endoplasmic reticulum d) Mitochondria 36- What is the function of the peroxisome in a cell? a) Synthesis of lipids b) Detoxification of harmful substances c) Protein synthesis d) Storage of genetic information ۷۵ / ۱۳ 37- Which organelle is responsible for the synthesis of RNA molecules? a) Nucleus b) Ribosome c) Golgi apparatus d) Vacuole 38- What is the function of the cytoplasmic vesicles in a cell? a) Energy production b) Transport of molecules within the cell c) Intracellular digestion d) Synthesis of proteinsarrow_forward
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