Bio 161 exam 4 - Study guides, Class notes & Summaries

BIO 161 PSU EXAM 4 QUESTIONS AND ANSWERS A+ GRADED What are the three types of muscle tissue? skeletal, cardiac, smooth What are some characteristics of skeletal muscle? -Voluntary - Striated - Multinucleate - Attached to bone or fascia (connective tissue) What are some characteristics of cardiac muscle? - Involuntary - Striated - Mononucleate - Autorhythmic (cells can self-regulate contraction) What are some characteristics of smooth muscle? - Involuntary - Non-striated

Bio 161 PSU Exam 4 QUESTIONS AND ANSWERS A+ GRADED Excitability ability to respond to stimuli Contractability ability to shorten Conductivity Ability to allow electricity to flow Extensibility ability to be stretched skeletal muscle A muscle that is attached to the bones of the skeleton and provides the force that moves the bones. Striated and Voluntary smooth muscle involuntary muscle found in internal organs Cardic muscle heart muscle, involuntary Striations

BIO 161 PSU EXAM 5 QUESTIONS AND ANSWERS A+ GRADED Functions of bone 1. Support - Hold body upright, support muscles and organs 2. Protection - Enclose important organs 3. Movement - Provide attachment sites for muscles 4. Electrolyte and Acid/Base Balance - Stores and releases ions needed by the body - Stores and release salts to buffer the blood 5. Blood Cell Differentiation - Location of bone marrow, the main producer of blood cells Diaphysis (long bone) location shaft of ...

BIO 161 PSU EXAM 3 QUESTIONS AND ANSWERS A+ GRADED Where are neurotransmitters synthesized? Where are they transported to and in what? What cell structure do they use to help transport? - cell body - axon terminal in vesicles - microtubules pre-synaptic neuron a neuron that delivers a signal to a synapse post-synaptic neuron the neuron on the receiving end of the synapse When does secretion occur? When an action potential reaches the end of the axon What steps follow the dep...

Meiosis Type of cell division that reduces the chromosome number from 2n to n. Daughter cells receive the haploid number Diploid (2n) containing two complete sets of chromosomes, one from each parent. the total number of chromosomes. Haploid (n) cell condition where only one type of chromosome is present Gametes reproductive cells (sperm and egg in animals). usually have the haploid number of chromosomes Zygote diploid cell formed by the production of two gametes; the product of fertilizatio...

BIO 161 - PSU - EXAM 3 QUESTIONS AND ANSWERS A+ GRADED Gas neurotransmitters dopamine & norepinephrine Secretion processing of converting electrical signal to chemical signal then back to electrical in postsynaptic neuron Synapse Steps 1 - AP reaches postsynaptic terminal 2 - Ca++ voltage gated channels open 3 - Ca++ binds to vesicles to help them burst 4 - Neurotransmitters in vesicles travel through cleft and bind to postsynaptic ligand channels Snare Proteins docking vesi...

The skeletal system is a dynamic system of _______________ tissue and a balance between _______________ and _______________ -️️connective; production; remodeling _________________ function holds the body upright and supports muscles and organs - ️️support _________________ function encloses important organs - ️️protection ____________________ function provides attachment sites for muscles -️️movement electrolyte and acid/bace balance stores and releases __________ needed by...

4 levels of life cell, tissue, organ, organ system 7 characteristics of life 1. organized (composed of cells) 2. acquire materials and energy (capacity to do work and metabolize) 3. homeostatic 4. reproduce 5. potential for growth 6. have evolutionary history/heredity of traits (adapt and evolve) 7. respond to stimuli (internal or external and leads to response) Why do humans belong to the domain Eukarya and kingdom Animalia? Eukarya: because we have nuclei, organelles, a cell membrane, and an...

This is a subcutaneous, S-shaped bone• Medial end articulates with sternum • Lateral end articulates with acromion of scapula - ️️clavicle The _______ of the scapula is a prominent ridge on posterior surface of scapula• Provides attachment for trapezius and deltoid muscles -️️spine The _______ of the sternum is triangular shaped• Superior part of sternum - ️️manubrium _______ of the scapula moves the shoulder forward (which MOTION, not which muscle) - ️️protraction...

MCB2010:Microbiology Final Exam Questions and Answers 2024/25 Update It forma a dark image against a bright background. it can be used to observe live or preserved, stained or unstained specimens. EX: bacteria is not living -IT CANNOT BE USED TO OBSERVE INTRACELLULAR STRUCTURES SUCH AS ENDOSPORES, DNA, RIBOSOMES, ETC OF LIVING CELLS Choose matching term fluorescence microscope phase contrast microscope dark field microscope bright field microscope Don't know? 1 of 189 Definition ...