Question

question 19 1 pts which of the following is an example of a uniaxial joint? shoulder joint hip joint elbow joint joint between the carpal and tarsal bones question 20 1 pts anaerobic respiration results in the formation of an incompletely catabolized molecule called lactate. glucose. myoglobin. atp. question 21 1 pts according to the sliding filament theory actin moves past myosin. tropomyosin moves past actin. troponin moves past myosin.

Explanation:

• Question 19: A uniaxial joint allows movement around one axis. The elbow joint is a hinge - type uniaxial joint. The shoulder and hip joints are multiaxial, and the joint between carpal and tarsal bones is a gliding joint.
• Question 20: Anaerobic respiration in humans and many other organisms results in the formation of lactate when oxygen is limited. Glucose is the starting molecule for respiration, myoglobin is an oxygen - storing protein in muscles, and ATP is the energy - carrying molecule produced in both aerobic and anaerobic respiration but not the incompletely catabolized end - product of anaerobic respiration.
• Question 21: According to the sliding filament theory, during muscle contraction, actin filaments slide past myosin filaments. Tropomyosin and troponin are regulatory proteins involved in the process but do not slide past each other in the way described in the incorrect options.

Answer:

• Question 19: elbow joint
• Question 20: lactate
• Question 21: actin moves past myosin