What are connexons - Study guides, Class notes & Summaries

Nucleus - ANSWER DNA and RNA are housed here. Contains all genetic material. Ribosomes - ANSWER Responsible for protein synthesis Mitochondria - ANSWER Produces ATP. This structure generates ATP by oxidative phosphorylation. Cells power plant. The more a cell needs energy the more it will need this. The heart would need more of this than the eyes, bones, or skin. Golgi apparatus - ANSWER Responsible for packaging and distribution. Processes and packages proteins for delivery. Shipping and ...

Electrical Activity of the HeartWhat is an action potential? - correct answer Rapid change in the transmembrane potential followed by a return to the resting membrane potential When do changes in transmembrane potential occur? - correct answer During changes in the permeability of the cell membrane to intracellular and extracellular ions Is the duration of APs in cardiac cells shorter or longer than in nerves cells or skeletal/smooth muscle? - correct answer Much longer What is the effe...

Bio ch. 3, 4, and 5 test Review 79 Questions with Verified Answers Chromosomes contain two chromatids after S-phase. True or False - CORRECT ANSWER True DNA is replicated during which phase of the Cell Cycle? G2-Phase S-Phase Mitotic-Phase All of the answer choices are correct - CORRECT ANSWER S-phase In the below image, look carefully at the structure labeled C. What happens to it during anaphase in somatic cell division? the entire structure goes into one of the new cells being ...

What is Physiology - correct answer Study of structure and function of a living organism and its components Key concepts in Physiology - correct answer - Structure and function - Biology energy - Information flow - Homeostasis Organizational Levels of Living Organisms - correct answer chemical - atom & molecules cellular- neuron, lymphocyte tissu...

Dipole Moment - ANSWER Partial negative and partial positive charge What causes surface tension? - ANSWER Hydrogen bonding Hydrophilic - ANSWER "water loving" Hydrophobic - ANSWER "water fearing" Hydration Shell - ANSWER Water surrounding the ions Diffusion - ANSWER Movement of ions from high to low concentrations Osmosis - ANSWER Diffusion of water Amphipathic - ANSWER "both loving" Characteristics of the head group - ANSWER Hydrophilic, charged, phosphodiestor bon...

Anatomy and Physiology- Midterm Which of the explanations below shows the correct relationship between anatomy and physiology? A- anatomy and physiology are not related, but two distinct fields of study B-The structure of a body part determines its function within the human body C-The anatomist determines the function of a body part and the physiologist determines the morphology D-Physiologists examine the organization of body parts while the anatomist tries to describe how and wh...

Nucleus - ANSWER DNA and RNA are housed here. Contains all genetic material. Ribosomes - ANSWER Responsible for protein synthesis Mitochondria - ANSWER Produces ATP. This structure generates ATP by oxidative phosphorylation. Cells power plant. The more a cell needs energy the more it will need this. The heart would need more of this than the eyes, bones, or skin. Golgi apparatus - ANSWER Responsible for packaging and distribution. Processes and packages proteins for delivery. Shipping and ...

Essentials of Anatomy & Physiology, 2e (Saladin) Chapter 3 The Cellular Level of Organization 1) A cell starting prophase has double the DNA content in its nucleus. Answer: TRUE Page Ref: 88 Section: 03.04 Topic: Somatic cell division Bloom's: 3. Apply Learning Outcome: 03.4b Name the stages of mitosis and describe what occurs in each Gradable: automatic 2) After mitosis is completed, each chromosome consists of two identical, parallel filaments called sister chromatids. Answer: FALSE ...

Blood Flow Through the Heart correct answers Enters the vena cava>rt atrium>tricuspid valve>rt ventricle>pulmonary valve>pulmonary artery>lungs>pulmonary veins>lf atrium>bicuspid valve>lf ventricle>aortic valve> aorta Alveoli Sac in Lungs correct answers -single layer of epithelial cells Myocardium correct answers -layer of muscle around a chamber of the heart -cardiac muscle parietal pericardium correct answers basal lamina that attaches mesothelia ...

histology - answer-study of tissues and how they are arranged in organs cell junctions - answer-connections between two cells tight junctions - answer-good for tissues that act as barriers desmosome - answer-very strong and help tissues resist stretching gap junction - answer-fairly weak, but great for allowing cells to communicate quickly tight junctions - answer-linkage between two adjacent cells by transmembrane cell-adhesion proteins and makes it difficult for substances to pa...