CSET Multiple Subject Science - Correct solutions

CSET Multiple Subject Science Cell ANSWER- Smallest unit of life. Prokaryotes - bacteria; Eukaryotes - plant and animal cells. Membrane, cytoplasm has organelles, nucleus (brain), Golgi apparatus packages hormone and enzyme material. Mitosis ANSWER- 1) Interphase - cell prepares. 2) Prophase - begins as cell begins to divide. 3) Metaphase - Chromosomes align around the equator of the cell. 4) Anaphase - Sister chromosomes are formed and move toward opposite ends of the cell. 5) Telophase - Mitosis ends and 2 nuclei are formed. 6) Cytokinesis - Splits Meiosis ANSWER- Creates gametes, sperm cells, and egg cells, each with half the number of chromosomes (haploid) found in a human cell. Zygote ANSWER- Single cell which develops into a human. Has a complete (diploid) set of chromosomes. Photosynthesis ANSWER- Chlorophyll in a plant's chloroplasts captures solar energy. The solar energy combines with carbon dioxide Co2 and water H2O to produce glucose (sugar). Releases O2 oxygen into the atmosphere. Respiration ANSWER- Cells create energy. Occurs in mitochondria: Aerobic - oxidation of food and takes place with O2; Anaerobic - fermentation and takes place without oxygen. Excretion ANSWER- Eliminate waste material. Homeostasis ANSWER- Maintain the cell's equilibrium. Ribonucleic Acid (RNA) ANSWER- RNA serves as a messenger that carries the genetic code throughout the cell. Early Life ANSWER- Atoms can combine spontaneously in this type of environment to form molecules. Molecules link together to form organisms. History of Life ANSWER- Cenozoic - Humans, grazing and meat-eating mammals. Mesozoic - Primates (flowering plants), birds, dinosaurs (mammals) Paleozoic - Reptiles, ferns, amphibians, plants, fish Precambrian - algae, cells