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SOPHIA Bio rated A+ already passedWhich of the following is part of the cytoskeleton? Intermediate tubules Macrotubules Microfilaments Macrofilaments Microfilaments Some chemical reactions within cells break down molecules. Others make larger molecules.They are all an example of ___________. metabolism catabolism ATP production anabolism metabolism What molecules in the cell membrane help move molecules from a low to a high concentration gradient? Vesicles Transport proteins Endocytosis Diffusion pumps Transport proteins Which of the following statements is true? Diffusion requires ATP to function. Diffusion is the movement of molecules from an area of high concentration to an area of low concentration. Diffusion is the movement of molecules from an area of low concentration to an area of high concentration. Diffusion is the movement of molecules across a plasma membrane, regardless of concentration gradient. Diffusion is the movement of molecules from an area of high concentration to an area of low concentration. Which organelle is mainly responsible for synthesizing proteins? Golgi body Nuclear envelope Smooth ER Ribosomes Ribosomes Which of the following describes a disaccharide? It is also an oligosaccharide. It has many sugar units. It has no sugar units. It can have up to two sugar units. It is also an oligosaccharide. How many turns of the Krebs cycle are required to break down one molecule of glucose? Three One Two Four Two Which of the following is a component of cell membranes and includes a hydrophilic head, a glycerol backbone and two fatty acid tails? Nucleic acids Phospholipids Fatty acids Triglycerides Phospholipids Which of the following is part of a nucleotide? DNA Amino acid Proteins Sugar Sugar Which is a component of cellular respiration? ATP breakdown Glycolysis Facilitated diffusion Meiosis Glycolysis At what level of protein structure are several amino acid chains joined together? Quaternary Primary Tertiary Secondary Quaternary When solute concentration is lower outside of the cell than inside the cell, water will move in a net direction into the cell.This is called a(n) _________. hypotonic solution 00:02 01:42 What is true about the electron transport chain (ETC)? The largest byproduct of the electron transport chain is carbon dioxide. ATP and water are products of the electron transport chain. The electron transport chain produces the same number of ATP as the Krebs cycle. The electron transport chain takes place in the cytoplasm of the cell. ATP and water are products of the electron transport chain. Which of the following statements is true? For all cells, the nucleus is the control center. Not all cells have cytoplasm. Human beings are made up entirely of cells. The parts that make up cells are themselves living things. Human beings are made up entirely of cells. What role do sensory receptors play in feedback loops to maintain homeostasis? Detect stimuli