answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Paraphin [41]
2 years ago
5

Terminal cisterns ________. a) are made of smooth endoplasmic reticulum b) store acetylcholine c) are an important link between

the nervous system and the muscle cell d) carry the action potential deep into the muscle cell
Biology
1 answer:
vampirchik [111]2 years ago
8 0

Answer:

Are made of smooth endoplasmic reticulum.

Explanation:

The endoplasmic reticulum is one of the most important cell organelle that is present in continuous with nuclear envelope. The two types of endoplamsic reticulum are smooth endoplasmic reticulum and rough endoplasmic reticulum.

Terminal cisterns are the large extended area of the sarcoplasmic reticulum that may surrounds the transverse tubules. They store the calcium in the muscle cells. The terminal cisterns are derived from the smooth endoplasmic reticulum and shows some structural similarity as well.

Thus, the correct answer is option (a).

You might be interested in
A (n) inhibitor has a structure that is so similar to the substrate that it can bond to the enzyme just like the substrate. 2. a
Studentka2010 [4]
The answers are as follows:
1. <span>An inhibitor has a structure that is so similar to the substrate that it can bond to the enzyme just like the substrate: t</span>his is called competitive inhibitor. A competitive inhibitor will compete with the substrate for the active site of the enzyme and bind to the active site, thus incapacitating the substrate from binding to the active site.
2.  An inhibitor binds to a site on the enzyme that is not the active site: this is called non competitive inhibitors. Non competitive inhibitors bind to other site in the enzyme which is not the active site of the enzyme. The binding of the inhibitor changes the conformation of the enzyme as well as the active site, thus making it impossible for the substrate to bind to the enzyme effectively.
3. <span>usually, a(n) inhibitor forms a covalent bond with an amino acid side group within the active site, which prevents the substrate from entering the active site or prevents catalytic activity: this is called irreversible or permanent inhibition. Permanent inhibitors form covalent bonds with the enzyme and prevent substrate from binding to the enzyme.
4. T</span><span>he competitive inhibitor competes with the substrate for the ACTIVE SITE on the enzyme: The active site of an enzyme is the place where the substrate normally bind in order to activate a enzyme. Competitive inhibitors are those inhibitors that compete with the substrate for the active site of the enzyme and prevent the substrate from binding there.
5. W</span><span>hen the noncompetitive inhibitor is bonded to the enzyme, the shape of the ENZYME is distorted. The non competitive inhibitors are those inhibitors that bind to other places in the enzyme instead of the active site. The binding of the non competitive inhibitor usually distort the shape and the conformation of the enzyme thus preventing the substrate from binding to it effectively.
6. E</span><span>nzyme inhibitors disrupt normal interactions between an enzyme and its SUBSTRATE. The principal function of enzyme inhibitor is to prevent the substrate from binding to the appropriate enzyme. This is usually done in the human system in order to regulate the activities of enzymes.</span>
6 0
2 years ago
Local farmers think that a commonly used pesticide is responsible for the increase in appearance of frogs with an additional app
stira [4]

Answer:

D.-

Explanation:

A control group is needed to carry out the experiment, that control group is the one that is not injected with anything.  Ethanol and pesticide need to be injected into separated groups to document whether it is one or the other that is harmful

4 0
2 years ago
Which of the following best describes the mechanism by which steroid hormones control gene expression? View Available Hint(s) Wh
Veseljchak [2.6K]

Answer:

Steroid hormones that enter the cell activate receptors. These hormone-receptor complexes then bind HREs and influence gene expression.

Explanation:

Mechanism of action of steroid hormones is as follows:

  • Steroid hormone enters cell and bind to the receptor.
  • Translocation of activated receptor- ligand complex into nucleus.
  • This complex then bind to another receptor on the chromatin.
  • Steroid receptors form dimers.
  • Act on DNA
  • These hormone-receptor complexes then bind HREs and influence gene expression.
  • Augmentation or Suppression of transcription.
6 0
2 years ago
Read 2 more answers
2. What is the complementary DNA sequence for the following DNA strands? Write the sequence of the complementary strand below th
DaniilM [7]

Answer:

CGTATC - DNA complementary strand- GCATG

CTTTCAAG- DNA complementary strand-GAAAGTTG

GAGACTTAC-DNA complementary strand-CTCTGAATG

Explanation:

Remember that the complementary sequence will be based on base pairing for DNA, so the A will pair with T, C with G

6 0
1 year ago
One of the group members burning the saltine and the chip disagreed with the hypothesis. The two foods both contain starch was t
katovenus [111]

The validity of the hypothesis cannot be confirmed or refuted from only one experiment. By using a series of experiments, the human error or measurement error is reduced to a minimum. Furthermore, more than one factor can be used to determine the validity of the hypothesis.  

I will respond to this student that the experiment needs to be repeated multiple times before a conclusion can be drawn! Also, the data will refute or confirm the validity of the hypothesis and not the researcher's own opinion/rational.

6 0
2 years ago
Read 2 more answers
Other questions:
  • Select all that apply. Chromosomes _____. are tight coils of DNA are carried on genes always occur in pairs can be analyzed in a
    15·2 answers
  • A grocery store newspaper claims that apple cider and honey can cure cancer, bronchitis, acne, bad breath, heart disease, athlet
    12·1 answer
  • Explain how gravitational contraction, radioactivity, and asteroid and meteorite bombardment heated early earth
    9·1 answer
  • Complete the following analogy regarding cell division.
    13·1 answer
  • The hormones secretin and cholecystokinin target the pancreas, ________, and ________ to release pancreatic juice and bile into
    12·2 answers
  • ​Over evolutionary time, flowering plants have evolved colors, odors, and nectar that attract pollinating insects and the insect
    15·2 answers
  • Could a teacher use ink chromatography to determine whether or not a student has changed his or her answers after a test has bee
    15·1 answer
  • What name is given to a factor which is preventing any increase in photosynthesis?
    10·2 answers
  • g Choose the correct answer from the list. Group of answer choices DNA sequences that are deduced by comparing many related DNA
    8·1 answer
  • Which of these is the dependent variable?
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!