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Questions in biology

[Terjawab] Each enzyme produced by the body is specific, meaning it is only able to catalyze a reaction with a certain substrate. What causes an enzyme to be specific? A. The enzyme's surface folds are complementary to the substrate's surface folds. B. The enzyme has surface receptors that can recognize specific sequences of DNA. C. The enzyme is made out of the same type of molecule as its substrate. D. The enzyme is only produced in certain conditions.

[Terjawab] Fish are not able to regulate their body temperature by producing heat. How could a fish adjust its body temperature if it were too warm? A. Swimming into cooler water B. Evaporating water from its skin C. Expelling water from its body D. Speeding up its level of activity

[Terjawab] Which is the correct sequence of events in mitosis? A. Prophase, metaphase, anaphase, and telophase B. Metaphase, prophase, anaphase, and telophase C. Anaphase, metaphase, prophase, and telophase

[Terjawab] Explain why visible structures, such as fins, beaks, and tails, look so different on different organisms.

[Terjawab] If a member of each of the seven animal groups fell into water, which groups would have the highest chance of survival? A. Fish and mammal B. Fish and amphibian C. Fish and reptile D. Fish and bird

[Terjawab] Explain why photosynthesis could have occurred in the Earth's early atmosphere, which did not contain oxygen, and how this process eventually affected the evolution of other organisms.

[Terjawab] Mitochondria are organelles found in both plant and animal cells. These organelles are rod-shaped with cristae and highly folded inner membranes. Mitochondria are responsible for: A. cellular respiration B. waste disposal C. transporting materials D. storage of genetic information

[Terjawab] The cell membrane does all of the following except: A. Contains the hereditary material B. Acts as a boundary or border for the cytoplasm C. Regulates passage of material in and out of the cell D. Functions in the recognition of self

[Terjawab] ATP is produced during the process of cellular respiration. Which is the order of the steps of cellular respiration? A. Krebs cycle, Calvin cycle, electron transport B. electron transport, Krebs cycle, glycolysis C. glycolysis, Krebs cycle, electron transport D. Calvin cycle, electron transport, glycolysis

[Terjawab] Which statement best describes one way that both plants and animals fight pathogens? A. Both have an antigen–antibody response. B. Both have a protective outer layer. C. Both produce lymphocytes. D. Both have a lymphatic system.