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 67 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

AISCAMPING

  • Member
  • Posts: 347
Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

« previous next »
 

Did you know?

In women, pharmacodynamic differences include increased sensitivity to (and increased effectiveness of) beta-blockers, opioids, selective serotonin reuptake inhibitors, and typical antipsychotics.

Did you know?

Alcohol acts as a diuretic. Eight ounces of water is needed to metabolize just 1 ounce of alcohol.

Did you know?

About 600,000 particles of skin are shed every hour by each human. If you live to age 70 years, you have shed 105 pounds of dead skin.

Did you know?

The use of salicylates dates back 2,500 years to Hippocrates's recommendation of willow bark (from which a salicylate is derived) as an aid to the pains of childbirth. However, overdosage of salicylates can harm body fluids, electrolytes, the CNS, the GI tract, the ears, the lungs, the blood, the liver, and the kidneys and cause coma or death.

Did you know?

The liver is the only organ that has the ability to regenerate itself after certain types of damage. As much as 25% of the liver can be removed, and it will still regenerate back to its original shape and size. However, the liver cannot regenerate after severe damage caused by alcohol.

Examples of covalent modifications that occur to the amino terminal tails of histone proteins. The a Examples of covalent modifications that occur to the amino terminal tails of histone proteins. The a
(A) The muscle segment. (A) The muscle segment.
A typical distributor-type diesel injection pump showing the pump, lines, and fuel filter. A typical distributor-type diesel injection pump showing the pump, lines, and fuel filter.
Eye movements with muscle and nerve coordination Eye movements with muscle and nerve coordination
Development of Muscle Development of Muscle
Offset Method Plot of Land with Offset Lines Offset Method Plot of Land with Offset Lines
Video: The primary factors that affect circulation - MABP, CO and SVR

For a complete list of videos, visit our video library