Biology Hesi A2 (1) Already Rated A

Biology Hesi A2 (1) Already Rated A Which organelle is responsible for protein synthesis? A. Mitchochondrion B. Vacuole C. Cell membrane D. Ribosome ️D. Ribosome Why is yeast used to make bread rise? A. It engages in photosynthesis, which produces oxygen, gas B. Carbon dioxide forms while yeast carries out photosynthesis C. Yeast carries out fermentation, producing ethanol and carbon dioxide D. Yeast breathes in oxygen and produces carbon dioxide through aerobic respiration ️C. Yeast carries out fermentation, producing ethanol and carbon dioxide How is mitosis different from meiosis? A. Mitosis is the process by which sex cells are formed B. Meiosis creates cells with half the chromosomes of the parent cell C. Telophase does not take place in mitosis D. Spermatogenesis and oogenesis occur via mitosis ️B. Meiosis creates cells with half the chromosomes of the parent cell Which statement is untrue? A. RNA is single-stranded B. RNA contains uracil B. DNA codes for proteins D. DNA cannot be altered ️D. DNA cannot be altered Imagine that two parents both carry the recessive gene for cystic fibrosis. Any homozygous recessive offspring will manifest the disease. What percentage of the offspring is predicted to be carriers but not manifest the disease? A. 0% B. 25% C. 50% D. 100% ️C. 50% A cell is in a solution in which the concentration of solutes is higher inside the cell than outside the cell. What would you expect to happen to the cell? A. It will swell and possibly burst B. It will shrivel and shrink C. It will maintain its current size D. It will grow a supportive cell wall ️A. It will swell and possibly burst What is the purpose of phloem tissue in plant stems? A. It conducts water through the stem B. It conducts the energy of light to leaves C. It conducts food throughout the plant D. It conducts carbon dioxide throughout the plant ️C. It conducts food throughout the plant Physical factors such as temperature and pH can alter enzyme activity because they have an effect on the enzyme's ___ A. acidity B. shape C. chemistry D. substrate ️B. shape Which part of a plant's reproductive system is of a different "gender" than the others? A. Stamen B. Pistil C. Stigma D. Style ️A. Stamen What kind of symbiosis exists between a pneumonia bacterium and a human? A. Mutualism B. Parasitism C. Commensalism D. Competition ️B. Parasitism The scientific name for a house cat is Felis cactus. This indicates the house cat's _____ and ____ A. kingdom; family B. order; subspecies C. phylum; class D. genus; species ️D. genus; species Beeswax is an example of what kind of molecule? A. Lipid B. Carbohydrate C. Protein D. Nucleic acid ️A. Lipid What takes place in a lysosome? A. Ribosomes are made B. Food is produced C. Water is stored D. Food is digested ️D. Food is digested Which organism reproduces via binary fission? A. Mushroom B. Blue whale C. Rainbow trout D. Salmonella ️D. Salmonella In which phase of cell division do the chromosomes replicate?