BSC2085-Exam 1 Questions + Answers Graded A+

In a protein, the chemical bond bond making up and binding amino acids is the ___________ bond while the bond responsible for providing the three dimensional or globular structure of proteins is the ____________bond. A) ionic, hydrogen B) ionic, covalent C) hydrogen, ionic D) covalent, hydrogen E) hydrogen, covalent - ️️D) covalent, hydrogen Which of the following planes creates right and left sides to the body? A) transtrabecular B) parasagittal C) sagittal D) horizontal E) frontal (coronal) - ️️C) sagittal The organelles that are used to: transport chemicals out of the cell; and to carry digestive cellular enzymes. A) mitochondria B) basal bodies C) nucleus D) vesicles E) bubbular structures - ️️D) vesicles A skin layer consisting of predominantly dense irregular connective tissue is A) corpuscular B) dermis C) epidermis D) stratal E) hypodermis - ️️B) dermis The Golgi complex A) produces the mitotic spindle during cellular division B) is now known to be an artifact produced by staining procedures C) modifies and packages proteins for secretion D) is responsible for controlling cellular respiration - ️️C) modifies and packages proteins for secretionIn a positive feedback loop, the ___________ increases the ____________. A) receptor, stimulus B) response, control center C) control center, receptor D) receptor,control center E) stimulus, response - ️️E) stimulus, response Starting with the least complex, place the following terms in their proper sequence. 1. organ 2. cell structure 3. tissue 4. molecule 5. system A) 5, 4, 3, 2, 1 B) 4, 2, 5, 3, 1 C) 1, 2, 3, 4, 5 D) 4, 2, 3, 1, 5 E) 3, 1, 2, 4, 5 - ️️D) 4, 2, 3, 1, 5 Ions (electrolytes) are important because they A) form tissues B) move cells C) break molecules D) generate electrical signals E) form carbohydrates - ️️D) generate electrical signals If a poison (such as cyanide) stops the formation of ATP, which of the following transport processes would NOT stop? A) phagocytosis of microbes B) diffusion of ions C) exocytosis of hormones D) active transport of Na+ - ️️B) diffusion of ions The method by which gases, like O2 and CO2, pass through the plasma membrane is __________. A) facilitated diffusion through phospholipid bilayer B) active transport through pumps C) diffusion through pumps D) osmosis through pores E) diffusion through phospholipid bilayer - ️️E) diffusion through phospholipid bilayer __________ molecules will be soluble in water. A) polar B) nonpolarC) bail bonds - ️️A) polar Most of a normal cell's work is done during A) mitosis B) metaphase only C) anaphase and telophase D) interphase E) prophase only - ️️D) interphase