To examine: Whether the statement, “Motor neurons trigger action potentials in muscle cell membranes that open voltage-sensitive Ca 2+ channels in T tubules, allowing extracellular Ca 2+ to enter the cytosol, bind to troponin C, and initiate rapid muscle contraction”, is true or false. Introduction: Calcium ions play an important role in the muscle contraction. The skeletal muscle contraction is initiated when the calcium ions bind to the troponin that linked with the actin filament. Then calcium ion induces a change in the configuration of troponin complex, thus tropomyosin shifts from the actin filament to the myosin head initiates contraction.

Question

Want to see the full answer?

Answer 1

Question

Chapter 16, Problem 2P

Summary Introduction

To examine: Whether the statement, “Motor neurons trigger action potentials in muscle cell membranes that open voltage-sensitive Ca²⁺ channels in T tubules, allowing extracellular Ca²⁺ to enter the cytosol, bind to troponin C, and initiate rapid muscle contraction”, is true or false.

Introduction: Calcium ions play an important role in the muscle contraction. The skeletal muscle contraction is initiated when the calcium ions bind to the troponin that linked with the actin filament. Then calcium ion induces a change in the configuration of troponin complex, thus tropomyosin shifts from the actin filament to the myosin head initiates contraction.

Expert Solution & Answer

Want to see the full answer?

Check out a sample textbook solution

See solution

Students have asked these similar questions

In order to establish the expiration date of perishable food, growth curve data must be collected. Once the microbial load is so high that it poses a hazard to human health, the food item is no longer considered safe (expired). Generally a load of x50,000 bacteria/gram is considered unsafe. Your task is to determine the microbial growth curves for MicroYo, a new brand of yogurt. The growth is determined by sampling the yogurt and growing the bacterial isolates in broth culture which is then serially diluted by a total of x10,000 and inoculated onto standard petri plates of nutrient agar. The following colony counts are measured: Time (days) MicroYo colony count# 1 1 4 1 12 2 16 20 4 7 What day should you recommend expiring the yogurt (the last possible date before the microbial load is unsafe). 12 4 20 16

9. Chicken combs in chickens is an example where you see interactions between genes. See potential genotypes and phenotypes below. Which genotype, when mated to a rose comb chicken, will produce progeny that are 50% walnut comb and 50% pea comb? walnut (RRPP) walnut (RrPP) pea (rrPP) walnut (RRPP) walnut (RrPp) pea (rrPp) rose rose single (RRPP) (Rrpp) (rrpp)

Describe a compound light microscope and its importance in microbiology (2) examples of at least two microbes viewed under a compound light microscope and their general characteristics (note: the microbes you choose do not need to be the ones outlined in the above tutorial video) and (3) at least one source you used for the information included in your infographic.