Biology question and answers for January 11, 2024
- Q Match the following terms and definitions.1. powerhouse of the cell2. protein producers3. shipping and packaging center4. food and pigment storage5. transportation highway of the cell6. enzyme producer for digestionlysosomesribosomesmitochondrionGolgi apparatusendoplasmic...
- Q What is an organelle?OA small structure within the cell that serves specialized functions.OA specialized protein that speeds up chemical reactions.OPackets within the cell cytoplasm that contain powerful enzymes.OThe semipermeable membrane...
- Q Which scientist discovered cells by observing cork with a homemade microscope?Carolus LinnaeusRudolf VirchowRobert HookTheodor Schwann
- Q A food molecule that contains 17 covalent bonds contains more energy that a food molecule that contains 9 covalent bonds. Explain why this is true.
- Q Cells in multicellular organisms must adhere, interact and communicate with each other. This is achieved by usingA) Gap junctionsB) Anchoring junctionsC) Tight junctionsD) PlasmodesmataE) All the above
- Q You have discovered a new kind of cell with a never before seen type of organelle that contains a highly hydrophobic compartment. Which type of large biological molecule would most...
- Q The plasma membrane is composed of:cellulosecellulose and proteinlipid onlyphospholipid and protein
- Q Large numbers of ribosomes are present in cells that specialize in producing which of the following biological molecules?steroidssmooth ERstarcheslipidsrough ERglucoseproteins
- Q Which of the following is an incorrect match of molecule to the location where it is principally used?DNA-nucleusmRNA-nucleus and cytoplasmrRNA cytoplasmglucose lysosomeproteins ribosome
- Q Choose the true statement(s) about prokaryotic external appendages.To be marked correct, you'll need to select all true statements as there may be more than one correct answer.Pili allow for adhesion,...
- Q Which of the following statements best supports the claim that certain organelles within eukaryotic cells evolved from free-living prokaryotic cells? a. The cytoplasm of both cukaryotes and prokaryotes is surrounded...
- Q In an experiment a fluid sample containing RBCs, bacteria, mycoplasma, PPLO, and viruses was strained aseptically (without allowing any contamination by unwanted organisms) using filters having different pore diameters. One...
- Q During a fight-or-flight response, epinephrine is released into the body's circulatory system and transported throughout the body. Some cells exhibit a response to the epinephrine while other cells do not....
- Q Temperature ranges for bacterial growth varies by species. Match the following temperature ranges with the correct organism type.Thermophiles 4C to 25C 20C to 45C 80C to 110C 0C to 15C...
- Q Bacterial capsules can...choose all the correct answers and only the correct answersallow bacteria to stick to things (i.e. surfaces or other bacteria)allow bacterial cells to move across solid surfacesallow bacteria...
- Q The Latin name Helacyton gartneri was controversially proposed for a new species of what?O a. 2.5 billion-year-old fungusO b. Jellyfish parasitesO c. Multicellular yeast, evolved in the labO d. Very...
- Q What protein provides the energy/force needed to translocate proteins into the endoplasmic reticulum?DynaminOligosaccharyl transferaseRan-GTPThe ribosomeThe translocator
- Q Which of these is not connected to the endomembrane system by vesicle trafficking? inside of nucleusendoplasmic reticulumplasma membraneAll of these are connected by vesicle traffickingendosomes
- Q Which statement accurately describes the modification process for plasma membrane glycoproteins? Glycosylation and oligosaccharide modification occurs solely in the Golgi apparatus. Glycosylation begins in the ER and modification of the...
- Q Describe the characteristics of the phospholipid bilayer that permit small hydrophobic lipid molecules to pass directly across the membrane. c. The phospholipid bilayer has a hydrophobic head and hydrophilic tails....
- Q During oxidative phosphorylation, reactive oxygen species are sometimes released that can damage mitochondria. What is the name of the process by which a cell can remove/eliminate damaged mitochondria?ApoptosisPinocytosisPhagocytosisAutophagy
- Q Which of the following is an example of potential energy?vesicle movement across the cellchemical bonds between atomsenergy of disordered movementmuscle contraction for locomotionmembrane transport of molecules
- Q What happens for cells to get out of Mitosis?Cdc2 is translated by the ribosomeCDK is spliced by the spliceosomecyclin is degraded by the proteosomeCAK is condensed into chromosomeWee1 is attached...
- Q Fermentation takes place,in the mitochondria.in the cytosol (cytoplasm).In the Krebs cycle.in the electron transport chain.
- Q Which of the following organisms is mismatched with its trophic level?a. phytoplankton-primary consumerb. eagle - tertiary or quarternary consumerc. algae - producad. carnivorous fish larvae - secondary consumer
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