The light reactions of photosynthesis occur only in the daytime and the dark reactions occur only at night. A. true B. false 37. When you plant a potato, the main energy system needed immediately after planting is photosynthesis. A. true B. false 38. C. signals the presence of viral attackers inside.
Transport proteins are present in the plasma membrane.
B. active transport. C. facilitated transport. D. facilitated diffusion. E. active diffusion. B. specialized endocytosis.