Cell Processes
What type of membrane transport moves substances from high concentration to low concentration without using ATP?
Passive transport
This tissue type is specialized for covering surfaces and lining organs.
Epithelial tissue
These cells break down bone tissue.
Osteoclasts
This neurotransmitter stimulates skeletal muscle contraction.
Acetylcholine
This term describes the body’s ability to maintain stable internal conditions.
Homeostasis
This process produces two genetically identical daughter cells. Write the name of each phase.
Mitosis (Interphase, Prophase, Metaphase, Anaphase, Telophase)
Which connective tissue fibers provide the greatest strength and resistance to stretching?
Collagen fibers
Which cell do all bone cells come from?
Osteoprogenitor cells
The sliding filament theory describes the interaction between these two proteins.
Actin and myosin
Explain a negative feedback response.
Shivering, Insulin/Glucose
Explain a type of Endocytosis
Phagocytosis (cell eating)/Pinocytosis (cell drinking)
Which tissue type is primarily responsible for communication through electrical signals?
Nervous tissue
During endochondral ossification, bone replaces this material.
Hyaline cartilage
Calcium ions bind to this protein to allow muscle contraction.
Troponin
After eating a large meal, blood glucose rises. Which hormone is released to help lower blood glucose?
Isulin
Explain why enzymes speed up chemical reactions in the body.
Enzymes lower the activation energy required for reactions.
This type of junction prevents substances from leaking between adjacent cells.
Tight junctions
Parathyroid hormone increases blood calcium levels by stimulating this process.
Bone resorption
What happens during the power stroke of muscle contraction?
Myosin head pulls actin filament to the center of sarcomere.
Explain a positive feedback response (include the Stimulus, receptor, effector and the response)
Labor contractions, Blood clotting
What happens during cellular respiration?
A metabolic process that converts nutrients into ATP/ The process of making ATP
What is connective tissue made up of?
Ground substance and extracellular fibers and cells
Explain how the skeletal system helps maintain calcium homeostasis.
Bone stores calcium and releases it into blood when calcium levels are low.
Explain why rigor mortis occurs after death.
ATP is no longer produced, so myosin heads cannot detach from actin.
What is one reason that the Sodium Potassium pump is important in the body?
Homeostasis, Maintain resting membrane potential, muscle contraction, active transport