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- Metabolism can be defined as the ________.a. adjustment by an organism to external or internalchangesb. process whereby all unspecialized cells becomespecialized to perform distinct functionsc. process whereby new cells are formed to replaceworn-out cellsd. sum of all chemical reactions in an organismThe gap junctions of animal cells differ from the plasmodesmata ofplant cells in thata. gap junctions serve as communicating junctions and plasmodesmataserve as anchoring junctions.b. gap junctions prevent extracellular material from moving betweenadjacent cells but plasmodesmata do not.c. gap junctions allow for direct exchange of cellular material betweencells but plasmodesmata cannot allow the same type of exchange.d. gap junctions are formed by specialized proteins that form channelsthrough the membranes of adjacent cells but plasmodesmata areformed by connecting the plasma membranes of adjacent cells.e. All of the above are correct.Which of the following allows rapid change in one direction butdoes not achieve stability?a. homeostasisb. positive feedbackc. negative feedbackd. All of these are correct
- What processes occur in biological tissues when direct current is passed through them? Oa. ATP synthesis occurs. O b. The concentration of ions in tissue elements and in cells is kept constant, The breakdown of glucose occurs. O C. lons of tissue electrolytes move along the lines of force of the electric field; In tissue elements and in cells, the concentration of ions changes.An endoskeleton consists of______ . a. a fluid in an internal space b. hardened plates at the surface of a body c. internal hard parts d. a fluid that surrounds the bodyEach of the following statements concerning mitochondria is true, EXCEPT a.The mitochondria require carbon dioxide and produce oxygen in the process of energy production. b.The matrix contains metabolic enzymes involved in energy production. c.The cristae increase the inner surface area of the organelle. d.Respiratory enzymes are attached to the surface of the cristae One of the following is TRUE about fibroblasts a.Are responsible for storage of fat b.Lines blood vessels and capillaries c.Secrete collagenous and elastic fibers d.Cubical large cells
- Which of the following statament is TRUE about animal tissues? Lütfen birini seçin: O a. Nervous tissue senses stimuli and transmits signals throughout the animal O b. Connective tissue consists of long cells called muscle fibers, which contract in response to nerve signals O c. Epithelial tissuestores fat for insulation and fuel O d. Muscle tissue mainly binds and supports other tissuesBoth Green plants and algal Charophycea have peroxisomes, which are: a. Organelles producing mitochondria. O b Organelles that start the process of cell division. Organelles involved in respiration. O d. Organelles producing cellulose. Organelles holding enzymes involved in metabolism. e.Anaerobic respiration in muscle tissue results in the formation of Select one: a. pyruvic acid b. carbon dioxide and water c. lactic acid d. ethanol and carbon dioxide O O O O
- The heart working with blood vessels to transport blood throughout the body is a type of the following: O a Organ O b. Organelle O c. Organism O d. Organ System Oe. None of the AboveIn paramecium, osmoregulation occurs through Macronucleus .a O Contractile vacuole .b O Micronucleus.c O Cilia .d O Food vacuoles e O Activate Wir Go to Settings te 70°F Mostly sunnyWhich of the folking principles states that the body will adapt to the demands that are placed upon it? 0А. Periodization 0B. Efficiency O C. Overad 0D. Specticly