Plant Structure Which part of a plant contains the male sex cell? Pollen Stamen Ova Style Pollen Stamen Ova Style ANSWER DOWNLOAD EXAMIANS APP
Plant Structure Water content of active protoplasm is 90% 10% 40% 70% 90% 10% 40% 70% ANSWER DOWNLOAD EXAMIANS APP
Plant Structure The mitochondria were known in the nineteenth century to be osmotically active on the basis of evidence that mitochondria were derived from a symbiotic bacterium mitochondria are surrounded by a semi permeable membrane the mitochondrial matrix is hypotonic to the cellular cytoplasm the mitochondrial matrix is hypertonic to the cellular cytoplasm mitochondria were derived from a symbiotic bacterium mitochondria are surrounded by a semi permeable membrane the mitochondrial matrix is hypotonic to the cellular cytoplasm the mitochondrial matrix is hypertonic to the cellular cytoplasm ANSWER DOWNLOAD EXAMIANS APP
Plant Structure Which of the following observations is not used as evidence to support the concept of endosymbiotic origin of chloroplasts and mitochondria? Both can live and function independently of the cell Both have their own DNA Both strongly resemble prokaryotes, especially in size Both have their own ribosomes Both can live and function independently of the cell Both have their own DNA Both strongly resemble prokaryotes, especially in size Both have their own ribosomes ANSWER DOWNLOAD EXAMIANS APP
Plant Structure Which of the following can be found as a part of the mitochondrial matrix? Enzymes DNA All of these Ribosomes Enzymes DNA All of these Ribosomes ANSWER DOWNLOAD EXAMIANS APP
Plant Structure Why do some redox reactions in cells result in the transfer of electrons from a reductant with a higher standard redox potential to an oxidant with a lower standard redox potential? Redox potentials are defined under standard conditions, and cellular conditions are typically not standard conditions Electrons always go from reductants with high redox potentials to oxidants with low redox potentials None of these The rules governing oxidation and reduction apply only in vitro, and not in vivo Redox potentials are defined under standard conditions, and cellular conditions are typically not standard conditions Electrons always go from reductants with high redox potentials to oxidants with low redox potentials None of these The rules governing oxidation and reduction apply only in vitro, and not in vivo ANSWER DOWNLOAD EXAMIANS APP
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