QUESTION 2 are the major types of lipids toung in cell membranes that nave a pho
ID: 196313 • Letter: Q
Question
QUESTION 2 are the major types of lipids toung in cell membranes that nave a phosphate head group that is water-Joving) and two long tatty acid tails that are (water-Seang) QUESTION 3 How do single-celled organisms ike Paramecium O A Turgor pressure maintain an isotonic state in a hypotonic soluton? B. Contractile vacucles C Electrochemical gradent D Plasmolysis QUESTION what cell structure actively martans rtracentar condens (homeostasis) compitie 0 C pusma membrane QUESTION5 Amgniapahic molecules spontaneousy arrange themselves into various on the inside away from water molecules spontaneously arrange themselves into vanous suctures that bave ihe poar bed oups on etctina wh warter and whwarer and the nonpotar tal groups True O Faise Click Save and Submit to save and submait. Cliok Save All Answers to save all arers Save Al REDESIGNED. RELIABLEExplanation / Answer
2. Phospholipids are the major types of lipids found in cell membrane that have a phosphate head group that is hydrophilic (water-loving) and two long fatty acid tails that are hydrophobic (water fearing).
3. Option B is correct. Contractile vacoule is a type of cellular compartment that absorb excess water and waste materials from inside the cell and expels them into the external environment. Helps the cell to not burst from too much water in hypotonic solution.
4. Option C is correct. Cell membrane is boundary that defines the space of the cell, separating its internal structures from the external environment and actively maintains intracellular conditions compatible with life.
5. True. This is the characteristic feature of amphipathic molecule like phospholipids.
6. Hypertonic: A, Hypotonic: C, Isotonic: B
7. False. The kink does not pack tightly rather it provides fluidity to the membrane.
8. Option D is correct.
9. Option A is correct. Cell membrane sparate the cells from external environment. Membranes also define spaces within many cells that allow them to carry out diverse functions.