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Home⇒ Medical Science⇒ Biochemistry⇒ Cell structure and compartments
1-Dont try to cram or spend more time here just read it fast and cover syllabus then practice MCQ's cheptor of same topic to check your progress. . |
2-Wrong options are also given but dont concentrate there, Right answer is in bold format. |
Q1 ⇒ Eukaryotic cells are more efficient than prokaryotes because their internal compartmentalization allows for specialization through the subdivision of particular tasks [other wrong options] [Discuss in forum] makes each compartment nutritionally independent of all others allows for specialization through merging of different tasks reduces overall cell size |
Q2 ⇒ In which of the following cell organelles, it is expected to find the biochemical reactions that harness energy from the breakdown of sugar molecules to synthesize large amounts of ATP? Mitochondria [other wrong options] [Discuss in forum] Lysosome Vesicles Plasma membrane |
Q3 ⇒ A certain cell organelle which is made of a double phospholipid bilayer that has many large pores in it, is most likely the nuclear envelope [other wrong options] [Discuss in forum] the plasma membrane the mitochondrion the cytoskeleton |
Q4 ⇒ Which of the following statements about prokaryotes is false? The substance known as cytosol is found within the bacterial nucleus [other wrong options] [Discuss in forum] Prokaryotic cells concentrate important materials for the cells survival Prokaryotic cells are much smaller than most eukaryotic cells Ancient prokaryotes may have given rise to some eukaryotic organelles |
Q5 ⇒ Which of the following structures is expected in a bacterium? Plasma membrane [other wrong options] [Discuss in forum] Nucleus Golgi apparatus Endoplasmic reticulum |
Q6 ⇒ Which of the following is the best criterion for deciding whether a cell is prokaryotic or eukaryotic? The cell has a nucleus or not [other wrong options] [Discuss in forum] The cell came from a single-celled or multicelled organism The cell has cytosol or not DNA is present in the cell or not |
Q7 ⇒ In which of the following cell types more cellular detail can be observed using an electron microscope compared to a light microscope? All of these [other wrong options] [Discuss in forum] Animal Bacterial Protist |
Q8 ⇒ Which of the following cell organelles are expected to be associated with motor proteins? Vesicles [other wrong options] [Discuss in forum] Smooth ER Plasma membrane Chloroplasts |
Q9 ⇒ What do dystrophin, utrophin, actin, and tubulin have to do with eukaryotic cell structure and function? They all participate in the production of large amounts of ATP [other wrong options] [Discuss in forum] They are components in the reactions of photosynthesis They all participate in the degradation of large amounts of ATP They are all embedded proteins in plasma membranes |
Q10 ⇒ In terms of basic cell structure, what do an elephant and an oak tree have in common? All of the above [other wrong options] [Discuss in forum] They both are eukaryotes They both have a cell nucleus They both have mitochondria |
Q11 ⇒ According to the fluid mosaic model of cell membranes, the membrane is a highly mobile mixture of phospholipids and proteins [other wrong options] [Discuss in forum] the most common type of molecules in the membrane are proteins basic membrane structure results from how the proteins interact with water the unique properties of cell types are determined by their phospholipids |
Q12 ⇒ Clearly defined nucleus, mitochondria in a large central vacuole and chloroplasts, indicate the group of organisms from plants [other wrong options] [Discuss in forum] bacteria fungi animals |
Q13 ⇒ Microtubules, motor proteins, and actin filaments are all part of the cytoskeleton of eukaryotic cells [other wrong options] [Discuss in forum] the mechanism of photosynthesis that occurs in chloroplasts the rough ER (endoplasmic reticulum) in prokaryotic cells the process that moves small molecules across cell membranes |
Q14 ⇒ The highly folded membranes found in such eukaryotic organelles as mitochondria and chloroplasts increase the surface area where key chemical processes can occur [other wrong options] [Discuss in forum] help the cell against physical damage make it possible to package large amounts of DNA within the cell assist with cell movement |
Q15 ⇒ Which of the following two organelles look most alike structurally? Golgi apparatus and smooth endoplasmic reticulum ER [other wrong options] [Discuss in forum] Nucleus and vesicle Vacuole and cytoskeleton Lysosome and chloroplast |
Q16 ⇒ An organism's first line of defense against attack by an invader such as a virus or bacterium is usually its body wall [other wrong options] [Discuss in forum] to flee or hide a specific immune response a nonspecific immune response |
Q17 ⇒ Which of the following macromolecules are found in the plasma membrane? Lipids, proteins, and carbohydrates [other wrong options] [Discuss in forum] Lipids and proteins only Proteins and carbohydrates only Proteins only |
Q18 ⇒ Which of the following organelles is directly connected to the outer membrane of the nucleus in a eukaryotic cell? Endoplasmic reticulum [other wrong options] [Discuss in forum] Mitochondrion Lysosome Golgi apparatus |
Q19 ⇒ Lysosomes are specialized vesicles in __________ that contain digestive enzymes for the breakdown of food. A related organalle known as a vacuole, which is found in __________ , also contains enzymes but in addition may act as a storage organelle for nutrients or water. animals; plants and fungi [other wrong options] [Discuss in forum] plants; animals and fungi plants and fungi; animals animals and plants; fungi |
Q20 ⇒ Which of the following is present in both prokaryotes and eukaryotes? Plasma membrane [other wrong options] [Discuss in forum] Lysosome Chloroplast Vacuole |
Or |