In an x-ray film of the skeletal system, the dense tissue areas appear
In an x-ray film of the skeletal system, the dense tissue areas appear __________ because they __________ the x-rays; the less dense tissues appear __________ because they __________ the x-rays.
dark; do not absorb; light; absorb
light; do not absorb; dark; absorb
dark; absorb; light; do not absorb
light; absorb; dark; do not absorb
2A tissue has the following characteristics: abundant extracellular matrix, abundant collagen fibers, collagen fibers mainly parallel to each other. Which of the following injuries results in damage to this kind of tissue?
Tear in the cartilage of the knee
Broken femur bone
Bullet penetrating the abdominal wal
Tear in the tissue that attaches the gastrocnemius muscle to bone
3Which of the following best describes the effect that holding your breath has on blood pH?
Holding your breath decreases blood pH by increasing the amount of carbon dioxide in the blood.
Holding your breath increases blood pH by decreasing the amount of carbon dioxide in the blood.
Holding your breath increases blood pH by increasing the amount of carbon dioxide in the blood.
Holding your breath decreases blood pH by decreasing the amount of carbon dioxide in the blood.
4Viruses are composed primarily of proteins and nucleic acids. Which of the following elements could be used to track the fate of viral proteins to determine if they entered the cell?
Phosphate because proteins contain phosphate, but nucleic acids do not
Nitrogen because proteins contain nitrogen, but nucleic acids do not
Sulfur because proteins contain sulfur, but nucleic acids do not
Oxygen because proteins contain oxygen, but nucleic acids do not
5An unknown molecule was detected in a tissue sample. The molecule is composed of carbon, hydrogen, and oxygen; appears to be a branching polymer; and is hydrophilic. This molecule is most likely a __________.
carbohydrate
nucleic acid
lipid
protein
6Metabolic water refers to the water molecules produced during normal cellular metabolism. Which types of metabolic reactions are important for the production of metabolic water?
Hydrolysis reactions
Reversible reactions
Dehydration reactions
Catabolic reactions
7A tissue sample has the following components: calcified matrix, collagen, and fibroblasts. Sandy has identified it as bone, but her instructor stated that was incorrect. Which statements below should her instructor use to explain the error?
Fibroblasts are only present in cartilage tissue.
Bone tissue would have osteoblasts, osteoclasts, and osteocytes present.
Calcified matrix is a characteristic of cartilage not bone tissue.
Bone tissue has elastin fibers, not collagen fibers.
8Which type of tissue contains cells called neurons?
Connective tissue
Muscle tissue
Nervous tissue
Epithelial tissue
Results for item 9.
9Which of the following is NOT an adhesive molecule found in the ground substance of connective tissue?
Chondroitin sulfate
Fibronectin
Osteonectin
Chondronectin
10Nicholas has been diagnosed with a condition resulting from inflammation of tissue associated with his lungs. Which statement best clarifies the condition?
Nicholas has inflammation of the cutaneous membrane associated with the lungs.
Nicholas has inflammation of the peritoneam, the synovial membrane associated with the lungs.
Nicholas has inflammation of the pleura, the serous membranes associated with the lungs.
Nicholas has inflammation of the mucous membranes associated with the lungs.
11When a sperm cell comes into contact with an egg cell, there is a change in the electrical charge across the plasma membrane and various channel proteins close. These channels would be called __________ channels.
chemical-gated
ligand-gated
open-gated
voltage-gated
12Which of the following statements concerning membrane transport across the plasma membrane is true?
Polar molecules are transported more easily than nonpolar molecules.
Generally, cations pass through the membrane more easily than anions.
Water cannot move through the membrane.
Lipid-soluble substances pass through the membrane by dissolving in the lipid bilayer.
The figure below shows major body cavities and other structures.
13Match A in the drop down.
InThoracic cavity
Match B in the drop down.
Pelvic cavity
Results for item 15.
15Match C in the drop down.
Thoracic cavity
16Match D in the drop down.
Abdominal cavity
17Match E in the drop down.
Pelvic cavity
Red blood cells (RBCs) have been placed in three different solutions: hypotonic, hypertonic, isotonic.
18Match Solution A relative to the RBC in the drop down.
Isotonic solution
19Match Solution B relative to the RBC in the drop down.
Hypertonic solution
Results for item 20.
20Match Solution C relative to the RBC in th
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