Gap junctions - Study guides, Class notes & Summaries

cardiocytes - ANSWER contractile cells of the heart desmosomes - ANSWER attach cardiocytes together. When one cell contracts, the other will not separate. Think of them like glue between the cells. Connected via gap junctions Electrical and chemical coupling The heart muscle acts as a single functional unit If you had designed a heart, in which the heart muscle cells can contract in unison, what would you do? - ANSWER Innervate only a few muscle cells and have them attach to each other...

It is true that a eukaryotic cell: a. Is smaller than a prokaryotic cell. b. Contains structures called organelles c. Lacks a well-defined nucleus. d. Does not contain histones. - b Eukaryotic cells contain organelles and histones, they have a well-defined nucleus, and are larger than prokaryotic cells. The function of a histone found in a eukaryote cell focuses on cellular: a. division b. movement c. activities d. Deoxyribonucleic acid (DNA) folding - d. The histones are binding pro...

Testbank for Biology 2nd Edition from OpenStax College ISBN 9781947172517Chapter 1 1 Figure 1.6 1: C; 2: F; 3: A; 4: B; 5: D; 6: E. The original hypothesis is incorrect, as the coffeemaker works when plugged into the outlet. Alternative hypotheses include that the toaster might be broken or that the toaster wasn't turned on. 3 Figure 1.16 Communities exist within populations which exist within ecosystems. 4 B 6 D 8 C 10 C 12 B 14 D 16 Answers will vary, but should apply the steps of the scienti...

Biology 235 Physiology - Exam #2 Questions With Verified Answers What are the three types of muscle tissue? 1) Skeletal muscle 2) Cardiac muscle 3) Smooth muscle What are the characteristics of skeletal muscle? - Long, cylindrical cells - Multinucleate - Striated with numerous fine bands - Voluntary - Neurogenic, it requires a nerve to stimulate it What are the characteristics of smooth muscle? - Spindle shapes - Flat and unstriated - Single nucleus - Involuntary - No sar...

presynaptic neurons - ANSWER can form synapses with a post synaptic neuron axosomatic - ANSWER Interaction between axon and some (or cell body) axoaxonic synapses - ANSWER Interaction between axon of one neuron and the axon of another axodendritic - ANSWER interaction between axon and dendrite electrical syanpses - ANSWER via gap junctions between two adjacent neurons allows bidirectional transmission very quick

Biology is the study of _______________. Life A pH of _____ is a strong base. 14 _____ are the intercellular junctions that hold cardiac muscle cells together. Gap Junctions Carbon is Atomic Number 6 so it always shares electrons True Prokayote cells and Eukaryote cells are the same size False When data supports a hypothesis, it is now proven False

Arizona State University BIO 202 Exam 1; Questions & Answers 100% Verified What are the mechanisms of cell communications? Answer-Gap junctions, neurotransmitters, paracrine (local) hormones, hormones (strict definition) What are paracrine (local) hormones? Answer-hormones secreted into tissue fluids to affect nearby cells What are hormones? Answer-chemical messengers that travel in the bloodstream, stimulates response in another tissue or organ What are target cells? Answer-Cells th...

dorsal cavity correct answers Includes the cranial and vertebral cavities ventral cavity correct answers Includes the thoracic and abdominopelvic cavities 4 Areas of Anatomy correct answers Histology, Gross Anatomy, Neurology, Embryology Endocrine System correct answers Consists of organs, glands, hormones Lymphatic System correct answers Consists of lymph, lymph vessels, lymph nodes, and lymphatic tissue (immune response) Longitudinal Plane correct answers Any plane that is perpe...

Portage Learning BIOD 101 Module 1 Problem Set Essential Biology I with Lab 202 Bowman 4/6/22, 10:26 PM Module 1 Problem Set: Essential Biology I with Lab-2021- Bowman Answer: Matter is anything that takes up space, by having a volume, and has mass. Matter can exist in a solid, liquid or gaseous (vapor) state. All matter is made up of certain basic substances called elements (See section 1.1 in module). Your Answer: Matter is anything that takes up space, by having a volume, and has ma...

gene - Answer-unit of inheritance that programs the amino acids of a polypeptide chain monomers: DNA and nucleic acids two types of DNA - Answer-DNA and RNA gene expression - Answer-DNA directs its own replication, controls protein synthesis flow of genetic info - Answer-DNA -> RNA -> Protein DNA backbone made of - Answer-sugar and phosphate complement base pairing - Answer-A w/ T and G w/ C phosphodiester linkage - Answer-links nucleotides, made of phosphate group that links the su...