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Bio 107 Midterm

QuestionAnswer
Ionic Bond Chemical bond formed by transfer of electrons between atoms.
Covalent bond Chemical bond formed by sharing electrons between atoms.
Hydrogen bond Weak attraction between a hydrogen atom and an electronegative atom (Like oxygen or nitrogen).
Proteins (In cell membrane) Embedded molecules that assist transport, signaling, and structural support.
Cholesterol (In cell membrane) Lipid that stabilizes membrane fluidity.
Endoplasmic reticulum (ER) Membrane network; rough ER has ribosomes for protein synthesis, smooth ER synthesizes lipids.
Ribosomes Sites of protein synthesis; free in cytoplasm or attached to rough ER.
Prophase Chromatin condenses into chromosomes; nuclear envelope breaks down; spindle fibers form.
Metaphase Chromosomes align at the cell's equatorial plate.
Anaphase Sister chromatids separate toward opposite poles.
Telophase Chromosomes decondense; nuclear envelope reforms; cell prepares to divide.
Telophase Chromosomes decondense; nuclear envelope reforms; cell prepares to divide.
Blood Connective tissue with plasma, red and white blood cells, and platelets; transports substances.
Bone Dense connective tissue that supports and protects organs; stores minerals
Skeletal muscle Started, voluntary muscle for movement.
Neuron Nerve cell that transmits electrical signals
Alveoli (Simple squamous epithelial) Thin sacs in lungs for gas ex hange.
Epidermis Outermost layer of skin; provides protection.
Dermis Middle skin layer; contains blood vessels, nerves, and glands.
Subcutaneous layer (hypodermis) Deepest layer; stores fat and cushions organs.
Hair follicle Structure in dermis where hair grows
Sweat glands Produce sweat for temperature regulation and excretion.
Frontal bone Forehead bone.
Parietal bone Sides and roof of skull.
Coronal (frontal) structure Connects frontal and parietal bones.
Temporal bone Side and base of skull; contains ear structures.
Occipital bone Back of skull; contains foramen magnum.
Foramen magnum Large opening in occipital bone for spinal cord passage.
Sphenoid bone Bone at base of skull; "keystone" bone.
Mandible Lower jawbone.
Maxilla Upper jawbone.
Lumbar Lower back region
Brachial Arm region
Occipital Back of the head
Cervical Neck region
Otic Ear region
Peritoneal membrane Membrane lining the abdominal cavity and covering abdominal organs.
Created by: NatalieB25
 

 



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