MOLECULAR BIOLOGY TEST QUESTIONS AND CORRECT ANSWERS 2024/2025

MOLECULAR BIOLOGY TEST QUESTIONS AND CORRECT ANSWERS 2024 /2025 Which statement correctly describes part of the Caron cycle - ANSWERThe amount of carbon in the soil increases when plants decay The table below shows 4 organisms and 1 or more biological processes each uses Which organisms transfer carbon from the environment to the biosphere - ANSWER1 and 3 The crude oil extracted today was formed millions of years ago from the fossilized remains of algae and other tiny marine organisms most part of the organisms decomposed soon after they died which biomolecules decomposed more slowly and became the basis of crude oil - ANSWERFatty acids In which situation does the biosphere or hydrosphere cause a chemical change to the atmosphere - ANSWERPhotosynthesis by oceanic algae removes carbon dioxide from the atmosphere What is the function of autotrophs in the carbon cycle - ANSWERTo use carbon dioxide to produce glucose Which statement correctly describes a soil interaction in the carbon cycle - ANSWERMicrobes breaking down organic matter in the soil release carbon dioxide Which process in the carbon cycle takes the longest to complete - ANSWERFormation of fossil fuels The life cycle of a mosquito depends on the availability of standing or slowing moving water if there is a lower than normal number of mosquitoes present in one area which limiting factor is most likely to occur - ANSWERA severe drought The illustration below shows a biogeochemical cycle Which gas is represented by the black arrows - ANSWEROxygen A large portion of the rain forest was removed and scientists noted a local increase in atmospheric carbon levels which best explains this observation - ANSWERRemoving the rain forest decreased the number of plants which normally decreases the carbon dioxi de levels in the atmosphere through photosynthesis