BI 121
Grand Rapids Community College
Here are the best resources to pass BI 121. Find BI 121 study guides, notes, assignments, and much more.
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Exam (elaborations)
BI 121- Anatomy & Physiology Lecture Exam #3 (GRCC Forbes) questions with verified answers
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--33May 20252024/2025A+Available in bundle
- # Osteoclasts > # Osteoblasts Ans Bone removal exceeds bone deposition, osteoporosis can result. Spongy bone (trabeculae) reabsorbed before compact bone 
 
#1 Step Ans Fetal hyaline cartilage model develops (8-12 weeks). Chondroblasts secrete cartilage matrix, and hyaline cartilage model forms. Chondrocytes trapped within lacunae, perichondrium surrounds cartilage 
 
#1 Step Ans Ossification centers form within thickened regions of mesenchyme beginning @ eighth week of development. 
Multiple...
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Exam (elaborations)
BI 121 lecture exam #4 (GRCC - Forbes) questions with verified answers
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--31May 20252024/2025A+Available in bundle
- ( nerve impulse / electrical signal ) Ans Changes in TMP transmitted propagated along axon 
 
1. Olfactory Ans smell 
 
10. Vagus Ans speech and swallowing 
 
11. Accessory Ans transmit to neck muscles , palate , and larynx 
 
12. Hypoglossal - Ans move tongue 
- all but olfactory orginate from brain stem 
- mostly mixed nerves 
 
2. Middle ear Ans A. Tympanic cavity 
A1 . Tympanic membrane F : Collect , concentrate and transmit sound to inner ear
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Exam (elaborations)
GRCC BI 121 Lecture Exam 2 (Corfixen) Questions with verified answers
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---14May 20252024/2025A+
- Ball and Socket Ans shoulder and hip 
 
Comminuted Fracture Ans fracture in which the bone is splintered or crushed/breaks into many fragments, most likely in the hands and feet 
 
Compund Fracture Ans When a bonebreaks into more than two pieces and possibly punctures the skin 
 
Condyloid Ans wrist and knuckles 
 
Define the term oxygen debt. Ans The amount of extra oxygen needed to react with the lactic acid and remove it from the cells. 
 
Describe the development of an intramembranous bone A...
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Exam (elaborations)
BI 121 LAB Muscular Exam Study Guide
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--23May 20252024/2025A+Available in bundle
- BI 121 LAB Muscular Exam Study Guide
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Exam (elaborations)
BI 121 (Forbes, GRCC)–LECTURE Exam #03 questions with verified answers
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--28May 20252024/2025A+Available in bundle
- #Osteoclasts > #Osteoblasts (Aging of the Skeleton) Ans Happens when bone removal exceeds bone deposition, which can result in osteoporosis. Spongy bone (trabecula) reabsorbed before compact bone 
 
Acromegaly Ans Increased levels of HGH results in enlarged hands, feet, jaw, and organs 
 
Actin Ans Protein backbone of thin filament 
 
Aging of the Skeleton Ans #Osteoclasts > #osteoblasts, Height reduction, Low collagen/ Ca ratio, Increased interosteonic gaps, Joints degeneration 
 
All fib...
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Exam (elaborations)
Bi 121 GRCC LAB exam 1 questions with verified answers.
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--17May 20252024/2025A+Available in bundle
- Bi 121 GRCC LAB exam 1 questions with verified answers.
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Exam (elaborations)
BI 121 (Forbes, GRCC)– LECTURE Exam #2 questions with verified answers
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--27May 20252024/2025A+Available in bundle
- ____ ATP molecules produced for each ________ molecule but ____ ATP are used in the process. ____ ATP net. Ans 1. 38, 2. glucose, 3. 2, 4. 36 
 
________ (age spots. liver spots) are ________ spots produced by melanocytes with ________ ______. Melanocytes produce ________ ________ and stimulate production of ______ ________. Does not lead to cancers. Ans Lentigos (age spots, liver spots) are pigment spots produced by melanocytes with UV-damaged DNA. Melanocytes produce excess melanin and stimula...
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Exam (elaborations)
BIO 121 Exam 3 Lecture, COPY BI 121 GRCC Forbes Exam 3 questions with verified answers
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---22May 20252024/2025A+
- Acromegaly Ans Increased levels of human growth hormone results in enlarged hands, feet, jaw, organs. 
 
Actin Ans Protein backbone of thin filament 
 
aging of skeleton Ans height reduction, bone removal exceeds bone deposition, decrease collagen, increase interosteonic gaps,Joint degeneration. 
 
Aging of the skeleton (5) Ans Osteoclasts>osteoblasts 
Height reduction 
Decrease collagen/calcium ratio 
Increased interosteonic gaps 
Joint Degeneration 
 
Amphiarthrotic Ans slightly movable 
 
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Exam (elaborations)
BI 121- Anatomy & Physiology Lab Exam #1 (GRCC Periard) questions with verified answers
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--7May 20252024/2025A+Available in bundle
- Abdominal Cavity (Abdominopelvic Cavity) Ans Large cavity found in the torso of mammals between the thoracic cavity, which it is separated from by the thoracic diaphragm, and the pelvic cavity 
 
Adrenal Gland Ans Epinephrine & norepinephrine- act with sympathetic nervous system to produce the "flight/fight" response to stress 
 
Anatomical Position Definition Ans The body at a standing position, face forwards, arms to the side with palms forward, and feet straight 
 
Antebrachial Region A...
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Exam (elaborations)
BI 121 GRCC test 1 notes questions with verified answers.
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--27May 20252024/2025A+Available in bundle
- BI 121 GRCC test 1 notes questions with verified answers.
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Exam (elaborations)
GRCC BI 121 Forbes Unit 4 Nervous System Neurophysiology I questions with verified answers
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---4May 20252024/2025A+
- ___1___ is the major ___2___ ion. Ans 1. potassium 
2. internal 
 
___1___ is the major ___2___ ion. Ans 1. sodium 
2. external 
 
A resting neuron has a ___1___ interior and a ___2___ exterior. Ans 1. negative 
2. positive 
 
action potential (also known as nervous impulse or electrical signal) Ans Changes in TMP transmitted (propagated) along axon. 
 
Action potential being with ___1___ sodium channels; propagates via ___2___ channels. Ans 1. chemically gated 
2. voltage gated
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Exam (elaborations)
BI 121 Exam 4 questions with verified answers
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--47May 20252024/2025A+Available in bundle
- BI 121 Exam 4 questions with verified answers
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Exam (elaborations)
BI 121- Anatomy & Physiology Lab Exam #2 (GRCC Periard) questions with verified answers
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--55May 20252024/2025A+Available in bundle
- BI 121- Anatomy & Physiology Lab Exam #2 (GRCC Periard) questions with verified answers
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Exam (elaborations)
BI121 GRCC SPOs: Muscular System questions with verified answers
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--12May 20252024/2025A+Available in bundle
- Abduction Ans Movement away from the midline of the body 
 
Adductor Ans movement towards the midline 
 
Adductor longus Ans adducts thigh 
 
Antagonist Ans muscle that opposes or opposes a prime mover 
 
Aponeurosis Ans strong sheet of tissue that acts as a tendon to attach muscles to bone 
 
Biceps brachii Ans -Origin 
=Short head: coracoid process of the scapula. 
=Long head: supraglenoid tubercle 
 
-Insertion Radial tuberosity and bicipital
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Exam (elaborations)
BI 121 Exam 1 – GRCC questions with verified answers
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--7May 20252024/2025A+Available in bundle
- A liquid homogenous mixture of greater than, or equal to, 2 elements Ans Solution 
 
A substance that cannot be broken down into other substances (normally) Ans Element 
 
A variant form of an element 
Contain a variant number of neutrons Ans Isotope 
 
An atom that has gained or lost an electron, therefore has a net positive or negative charge Ans Ion 
 
An isotope with an unstable nucleus,
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Exam (elaborations)
GRCC BI 121 SPOs: Nervous System questions with verified answers
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---18May 20252024/2025A+
- Abducens nerve Ans VI, lateral eye movement 
 
Accessory nerve Ans XI, trapezius /shrugging 
 
accommodation Ans the process by which the eye's lens changes shape to focus near or far objects on the retina 
 
anterior cavity Ans filled with aqueous humor 
 
aqueous humor Ans fluid in the eye, found between the cornea and the lens 
 
arachnoid mater Ans middle layer of the meninges 
 
association neurons (interneurons) Ans neurons that connect motor and sensory neurons in neural pathwa
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