H,0 H,0 H,0 H,0 H,0 Plasma membrane H,0 Which figure depicts an animal cell placed in a solution hypotonic to the cell? A) cell A B) cell B O C) cell C D) cell D O E) cell E
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Hypotonic solution: A solution with less dissolved particles (salt and other ions) than ordinary cells. So, the water content in hypotonic solution is higher than the cell.
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- A cell contains 97% water and it is placed in a 5% salt solution. a) Which contains a higher concentration of water? i) cytoplasm of the cell ii) salt solution b) Which contains a higher concentration of solutes? i) cytoplasm of the cell ii) salt solution c) Cell membranes are selectively permeable, so which of the substances will move across it? i) water ii) salt iii) both water and salt iv) none d) What will happen to the volume of the cell? i) increase ii) decrease iii) stay the same i need help on this hw question. i tried it on my own but im not too sure if it's correct. the following are what i think the answers are: a) cytoplasm of the cell b) salt solution c) water d) decrease it would be helpful if you can confirm my answers and explain what i did wrong, thank you!If magnesium ions are in higher concentration outside the cell, they would move into the cell by the process of: a) facilitated diffusion through a carrier protein b) osmosis c) secondary active transport d) facilitated diffusion through a channel protein e) exocytosis f) simple diffusion g) primary active transport1) All of the following are functions of proteins within a membrane except __________. A)Maintaining the fluidity of membranes B)transport ions and other polar substances C)receptors to bond molecules outside of the cell D)helping the body to recognize its own cells 2) Which of the following organelles is not part of the endomembrane system A)mitochondria B)golgi apparatus C)lysosomes D)rough endoplasmic reticulum 3) Which cytoskeletal element is composed of actin and is involved with muscle contraction and provided strength to cells during stretching and compression? A)Microfilimants B)Intermediate filaments C)Microtubules D)Flagella
- Which of the following is not a function of cytoskeleton in a cell ? A) Maintenance of cell shape and structure B) Intracellular transport C) Cell motility D) Support of the organelleWhich term best describes the following scenario: Calcium ions travel through the cell membrane into the cell, using an integral protein. There is a higher concentration of calcium in the cell. A) Diffusion/Passive transport B) Facilitated diffusion C) Active transport D) Fluid mosaic model E) All terms in this list are correctOrganelles which destroy food particles that come into the cell. a) lysosomes b) rough ER c) mitochondria d) Golgi apparatus
- For which of the following apply: the extracellular space is eliminated here near the surface between two cells. A) Zonula adherens B)Zonula occluded C) Desmosome D) Gap junction E) HemidesmosomeThe hydrophobic interior of the cell membrane is created by O O a) peripheral proteins b) phospholipids heads c) integral proteins d) glycoproteins e) phospholipids tailsAs a cell increases in size a) its volume increases at a slower rate than its surface area b) its surface area increases at a slower rate than its volume c) its surface area increases at a faster rate than its volume d) None of the above
- When an animal cell is placed on an isotonic solution, water molecules will A) Move out of the cell, resulting in shrinkage B) move into the cell until it bursts C) move into and out of the cell at equal rates D) stop moving need help for this, thanksA) Describe in as much detail as you can, the fluid mosaic model of a cellular membrane. B) What is special about the phospholipid in the cell membrane? C) Name four components of the fluid mosaic model and their function in the membrane.Name the structure which is used to transfer macromolecules between the cytoplasm and nucleus.a) Microtubulesb) Nuclear poresc) Ciliad) Centrioles