HESI A2 BIOLOGY update

HESI A2 BIOLOGY 2021 update In the hierarchic system of classification, which of the following is the least inclusive? Species After observing an event, you develop an explanation. This statement is referred to as which of the following? Hypothesis A molecule of water is bonded with another molecule of water by what type of bond? Hydrogen Which of the following is a benefit of the intermolecular hydrogn bonding of water? Water has a relatively high specific heat value Water has strong cohesive and adhesive properties Polarity of water allows it to act as a versatile solvent Of all the molecules that are significant to biology, which of the following are considered the most important? Carbohydrates, lipids, protein, and nucleic acids Lipids are better known as fats, but what are they specifically? Fatty acids Phospholipids Steroids What are the two categories of fatty acids? Saturated fats and unsaturated fats How do phospholipids function in cells? They are integral components of the plasma membrane Which of the biologic molecules are considered the most significant contributor to cellular function? Proteins Proteins are polymers of which of the following? Amino acids Which of the following proteins catalyze different reactions or processes? Enzyme Which of the biologic molecules are components of the molecules of inheritance? Nucleic acids What is the sum of all chemical reactions that occur in an organism? Metabolism In a cell, reactions take place in a series of steps called: Metabolic pathways What is the fundamental unit of biology? Cell Which type of cell contains no defined nucleus? Prokaryotic cell What is the primary purpose of the flagella on the surface of cells? Movement of the cell Which cell organelle functions to transport materials from the endoplasmic reticulum throughout the cell? Golgi apparatus Which of the following are the distinct organelles that produce cell energy? Mitochondrion and chloroplast Which component of the cell contributes to the protection, communication, and passage of substances into and out of the cell? Cell membrane The cell membrane consists of a bilayer of phospholipids with proteins, cholesterol, and glycoproteins. This bilayer creates a hydrophobic region between two layers of lipids, making it which of the following? Selectively permeable What are the two catabolic pathways that lead to cellular energy production? Fermentation and cellular respiration What is the first step in the conversion of glucose to pyruvate? Glycolysis Which step in cellular respiration yields the greatest amount of ATP?