Biology Practice Test 1|40 Questions with Verified Answers,100% CORRECT, Exams of Nursing

Download Biology Practice Test 1|40 Questions with Verified Answers,100% CORRECT and more Exams Nursing in PDF only on Docsity! Biology Practice Test 1|40 Questions with Verified Answers In the hierarchic system of classification, which of the following is the least inclusive? - CORRECT ANSWER a. Kingdom b. Class c. Genus d. Species D After observing an event, you develop an explanation. This statement is referred to as which of the following? - CORRECT ANSWER a. Hypothesis b. Experiment c. Conclusion d. Theory A A molecule of water is bonded with another molecule of water by what type of bond? - CORRECT ANSWER a. Ionic b. Covalent c. Hydrogen d. Molecular C Which of the following is a benefit of the intermolecular hydrogn bonding of water? (Select all that apply) - CORRECT ANSWER a. Water has a relatively high specific heat value b. Water has strong cohesive and adhesive properties c. Polarity of water allows it to act as a versatile solvent d. Water moves from higher to lower concentration A,B,C Of all the molecules that are significant to biology, which of the following are considered the most important? - CORRECT ANSWER a. Carbohydrates, lipids, protein, and nucleic acids b. Carbohydrates, lipids, protein, and calcium c. Carbohydrates, lipids, protein, and sulfur d. Carbohydrates, lipids, protein, and iron A Lipids are better known as fats, but what are they specifically? (Select all that apply) - CORRECT ANSWER a. Fatty acids b. Phospholipids c. Ketones d. Steroids A,B,D What are the two categories of fatty acids? - CORRECT ANSWER a. Trans fat and saturated fats b. Trans fat and unsaturated fats c. Saturated fats and unsaturated fats d. Saturated fats and polyunsaturated fats C How do phospholipids function in cells? - CORRECT ANSWER a. They are integral components of the nuclear membrane b. They are integral components of the cytoplasmic skeleton c. They are integral components of the mitochondrial membranes d. They are integral components of the plasma membrane D Which of the biologic molecules are considered the most significant contributor to cellular function? - CORRECT ANSWER a. Carbohydrates b. Lipids c. Proteins B Which of the following are the distinct organelles that produce cell energy? - CORRECT ANSWER a. Mitochondrion and chloroplast b. Mitochondrion and nucleus c. Chloroplast and nucleus d. Chloroplast and lysosome A Which component of the cell contributes to the protection, communication, and passage of substances into and out of the cell? - CORRECT ANSWER a. Nucleus b. Cell membrane c. Endoplasmic reticulum d. Cytoplasm B 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? - CORRECT ANSWER a. Impermeable b. Permeable c. Selectively permeable d. Selectively impermeable C What are the two catabolic pathways that lead to cellular energy production? - CORRECT ANSWER a. Fermentation and internal respiration b. Fermentation and external respiration c. Fermentation and cellular respiration d. Fermentation and anaerobic respiration C What is the first step in the conversion of glucose to pyruvate? - CORRECT ANSWER a. Glycolysis b. Krebs cycle c. Electron transport chain d. Aerobic respiration A Which step in cellular respiration yields the greatest amount of ATP? - CORRECT ANSWER a. Glycolysis b. Krebs cycle c. Electron transport chain d. Fermentation B During cell respiration, the conversion of glucose results in an overall production of how many ATP molecules? - CORRECT ANSWER a. 2 b. 16 c. 18-24 d. 32-36 D What is the function of water in photosynthesis? - CORRECT ANSWER a. Combine with carbon dioxide b. Absorb light energy c. Supply electrons in the light reactions d. Transport hydrogen ions in the dark reactions C Cells reproduce by different processes, all of which fall into what two catagories? - CORRECT ANSWER a. Sexual reproduction and binary fission b. Sexual reproduction and asexual reproduction c. Asexual reproduction and binary fission d. Asexual reproduction and mitosis B Which of the following describes how a bacterium reproduces? - CORRECT ANSWER a. Mitosis b. Meiosis c. Binary fission d. Cytokinesis C Regarding mitosis and cytokinesis, one difference between higher plants and animals is that in plants: - CORRECT ANSWER a. The spindles contain cellulose microfibrils in addtion to microtubules, whereas animal spindles do not contain microfibrils b. Sister chromatids are identical, whereas in animals they differ from one another c. A cell plate begins to form at telophase, whereas in animals a cleavage furrow is intiated at that stage d. Chromosomes become attached to the spindle at prophase, whereas in animals chromosomes do not become attached until anaphase C During which phase of cell reproduction does the cell divide forming two separate identical cells? - CORRECT ANSWER a. Prophase b. Metaphase c. Anaphase d. Cytokinesis D How does meiosis differ from mitosis? - CORRECT ANSWER a. In meiosis, each of the daughter cells contains twice as many chromosomes as the parent b. In meiosis, each of the daughter cells contains half as many chromosomes as the parent c. In meiosis, each of the daughter cells is completely identical to the parent