A&P I second test
Osmosis always involves: -Selectively permeable membranes and concentration gradients -Diffusion -Completely Impermeable membranes -All of these
-Selectively permeable membranes and concentration gradients
What is the byproduct and ATP yield/glucose when glycolysis rates exceed mitochondrial capacity?
2 Lactate; 2 ATP
Which of the following statements best describes the fluid mosaic model of the plasma membrane?
A lipid bilayer with protein molecules dispersed within it
Which type of membrane transport process uses ATP as a source of energy?
Active Transport
Proteins in the cell membrane that bind hormones and relay messages into the interior of the cell ________ .
Are receptors for signal transduction and homeostasis responses
Which of the following cell structures are involved in sweeping mucous trapped substances across cell surfaces?
Cilia
The two types of osseous tissue in the skeletal system are ___________.
Compact and cancellous or spongy bone
Which nucleic acid below would be involved in transcription, but not translation in protein synthesis?
DNA
A cell is placed in a solution with a higher concentration of glucose than intracelluar glucose. However, glucose only enters the cell when stimulated by insulin: Glucose transport is probably:
Facilitated diffusion
NSAIDS reduce inflammation by inhibiting Mast Cells in injured tissues.
False
T/F All substances can pass freely between the intracellular and extracellular fluids through a phospholipid bilayer.
False
T/F Small amounts of ATP can be stored by muscle cells with proper nutrition.
False
T/F The central canal of an osteon contains osteocytes.
False
T/F The glycocalyx is a coating of glycoproteins inside the cell membrane to guide organelles to their proper place in the cell.
False
T/F The presence of an epiphyseal line indicates that long bone growth is still in process.
False
In tissue repair, replacement tissue indicates:
Fibrotic scar tissue replaces original tissue
In the cytoplasm, the process of ATP synthesis is known as __________, decomposing the substrate_________.
Glycolysis; glucose
The term to describe the type of solution in which cells will lose water is:
Hypertonic
Which of the following indicates the correct sequence of tissue repair?
Inflammation, organization, remodeling
Which cellular location is responsible for generating the most ATP for work?
Mitochondria
The movement of water to equalize solute concentration differences across membranes is called:
Osmosis
The cells activated by calcitonin hormone to stimulate bone building are ___________ .
Osteoblasts
What cells are stimulated by Parathyroid Hormone (PTH) to increase blood calcium levels?
Osteoclasts
The lacunae of bone contain _________ .
Osteocytes
The structural unit of compact bone is the __________.
Osteon or Haversian system
Which of the following molecular components of the membrane are considered amphipathic?
Phospholipids
During the process of tissue repair, which of the following indicates the production of scar tissue?
Replacement
Which of the following structures anchors the Periosteum to the underlying bone?
Sharpey's or Perforating fibers
Which of the following types of epithelial tissue would you find lining the inside of blood vessels or the capillary walls for gas diffusion?
Simple squamous epithelium, aka endothelium
Which of the following kinds of epithelium would you expect in places needing a lot of protection from friction?
Stratified squamous
Which of the following mutations would usually cause the least damaging consequences?
Substitution
Which item below is NOT a function performed by proteins found in the plasma membrane?
Synthesis of proteins
Which of the following is NOT a type of connective tissue?
Transitional
T/F Inflammation causes the capillaries to dilate and become very permeable, and encourages white blood cells to enter the inflamed area.
True
T/F Oxygen is consumed and ATP produced during the Electron Transport Chain
True
The mRNA start codon, AUG, matches up with which tRNA anticodon? (Three Letters)
UAC