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When human muscle cells obtain ATP anaerobically through glycolysis and fermentation, which combination is correct? A. Ethanol produced in chloroplasts B. Lactate produced in the cytoplasm C. Carbon dioxide and water produced in the nucleus D. Lactate produced…
The schematic shows a neuron. Identify X and state its function.
A chemical synapse produces an excitatory postsynaptic response. Describe how this response is generated.
Each band represents a DNA fragment in a simplified profile. Which candidate is compatible with being the child’s father, assuming the listed mother is correct and ignoring mutation? A. Candidate Q B. Candidate S C. Candidate P D. Candidate R
Carbon participates in molecular structures, ecosystem transfers and changes to the global environment. (a) Outline bonding properties that allow carbon to form many different molecules. (b) Describe processes that transfer carbon through an ecosystem. (c)…
Use the codon information to choose an mRNA that encodes Val–Lys–Gly–Tyr. mRNA codon | Amino acid GUU, GUC, GUA, GUG | Val AAA, AAG | Lys GGU, GGC, GGA, GGG | Gly UAU, UAC | Tyr GAU, GAC | Asp GCU, GCC, GCA, GCG | Ala CAA, CAG | Gln UUU, UUC | Phe A. GUC AAG…
Consider connections between biological processes at different levels of organization. (a) Outline three properties of energy-storage polysaccharides that make them effective reserves. (b) Describe the transfer of energy along a food chain. (c) Explain why…
DNA fragments move through an agarose gel from the wells shown. Which deduction is supported? A. P travelled furthest and represents smaller DNA fragments than Q B. Q is positively charged and moves toward the negative electrode C. Q must have a lower…
Biological function depends on coordinated structures and recurring processes. (a) Outline how chromosome behaviour in mitosis produces genetically equivalent cells. (b) Describe the production of mRNA in the nucleus. (c) Explain how arterial and venous…
Three eukaryotic cells have the features shown. Which classification best fits the observations? Feature | Cell P | Cell Q | Cell R Cell wall | Chitin-containing | Absent | Cellulose-containing Plastids | Absent | Absent | Present Large central vacuole |…