This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: Muscle contractions occur when there is a decreased: a. distance between Z lines. b. A band ... (Read 89 times)

sheilaspns

  • Hero Member
  • *****
  • Posts: 567
on: Jun 25, 2018
Muscle contractions occur when there is a decreased:
 
  a. distance between Z lines.
  b. A band length.
  c. Z line length.
  d. H zone distance.

Question 2

The molecule that aids in bonding of the troponin complex to actin and tropomyosin is troponin:
 
  a. C.
  b. I.
  c. T.
  d. M.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

kingdude89

  • Sr. Member
  • ****
  • Posts: 336
Reply #1 on: Jun 25, 2018
Answer to Question 1

ANS: A
Anatomically, contraction occurs when the sarcomere shortens, so adjacent Z lines move closer together. Such a contraction does not occur in relationship to a decrease in A band or Z line length or a decrease in H zone distance.

Answer to Question 2

ANS: C
Troponin T aids in the binding of the troponin complex to actin and tropomyosin. Troponin C contains binding sites for the calcium ions involved in contraction. Troponin I inhibits the ATPase of actomyosin. Troponin M is not a substance.


sheilaspns

  • Member
  • Posts: 567
Reply 2 on: Jun 25, 2018
Wow, this really help

helenmarkerine

  • Member
  • Posts: 324
Reply 3 on: Yesterday
:D TYSM

« previous next »
 

Did you know?

As of mid-2016, 18.2 million people were receiving advanced retroviral therapy (ART) worldwide. This represents between 43–50% of the 34–39.8 million people living with HIV.

Did you know?

Amoebae are the simplest type of protozoans, and are characterized by a feeding and dividing trophozoite stage that moves by temporary extensions called pseudopodia or false feet.

Did you know?

The oldest recorded age was 122. Madame Jeanne Calment was born in France in 1875 and died in 1997. She was a vegetarian and loved olive oil, port wine, and chocolate.

Did you know?

In 2006, a generic antinausea drug named ondansetron was approved. It is used to stop nausea and vomiting associated with surgery, chemotherapy, and radiation therapy.

Did you know?

Dogs have been used in studies to detect various cancers in human subjects. They have been trained to sniff breath samples from humans that were collected by having them breathe into special tubes. These people included 55 lung cancer patients, 31 breast cancer patients, and 83 cancer-free patients. The dogs detected 54 of the 55 lung cancer patients as having cancer, detected 28 of the 31 breast cancer patients, and gave only three false-positive results (detecting cancer in people who didn't have it).

The four stages of cross-bridge cycling in skeletal muscle. The four stages of cross-bridge cycling in skeletal muscle.
This squirrel, who was looking for a treat, has become desensitized to humans. The distance between This squirrel, who was looking for a treat, has become desensitized to humans. The distance between
Color enhanced X-ray showing a pacemaker implanted in the left side of the chest and the electrode w Color enhanced X-ray showing a pacemaker implanted in the left side of the chest and the electrode w
Testing Distance Visual Acuity Using a Snellen Eye Chart Testing Distance Visual Acuity Using a Snellen Eye Chart
Press along sen lines and marma points on inner forearm. Press along sen lines and marma points on inner forearm.
legs muscle diagram legs muscle diagram
Video: Secondary and tertiary levels of protein structure Animation

For a complete list of videos, visit our video library