Dictionary » A » Activates

Activates

Activate

1. To render activity.

2. To become active.

3. (Science: chemistry) to convert (a compound, as a provitamin or enzyme) into an active form or different compound, especially. Into one that has a particular biological action (for example ergosterol by irradiation to vitamin D2 for use in treating rickets).


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Human Pathology 'Multiple-Choice Questions'

... in the systemic blood EXCEPT: a. GH b. CRH c. FSH d. Oxytocin e. TSH 2. The Drug Discovery company has developed a compound X that binds and activates TSH receptors with a very high affinity. A 30 year-old XY subject that has been taking very high daily doses of the compound X would have ...

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by ScrimmSphere
Mon Feb 04, 2013 11:03 am
 
Forum: Human Biology
Topic: Human Pathology 'Multiple-Choice Questions'
Replies: 0
Views: 296

cell

... biological ageing and cell malfunction, because so many telomeres in so many places have been lost. However, in people with cancer, the gene that activates the synthesis of the enzyme telomerase (a huge protein complex that adds the sequence TTAGGG to telomeres to repair them), which causes tumor ...

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by billyfisher100
Mon Jan 21, 2013 11:36 am
 
Forum: Cell Biology
Topic: cell
Replies: 1
Views: 750

Animal cell nucleus shape changes

... loses it when it becomes a mature erythrocyte. Thus, the nucleus shape is typically "fixed" only in resting, mature cells. When the cell activates, for meiosis or for other reasons, the shape often changes. But in almost all cases the nucleus shape is well-defined and the changes are ...

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by biohazard
Mon Nov 12, 2012 2:04 pm
 
Forum: Cell Biology
Topic: Animal cell nucleus shape changes
Replies: 7
Views: 2218

mRNA transcripts, cis/trans-acting questions

... to determine whether it is: a cis-acting mutation of a regulatory sequence for GAL2 itself (“cis”); a trans-acting mutation in GAL4, which activates transcription of GAL2 (“GAL4”); or a trans-acting mutation in GAL3, which interacts with GAL80 to de-repress GAL4 when galactose is present ...

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by animus31
Fri Nov 09, 2012 11:58 am
 
Forum: Genetics
Topic: mRNA transcripts, cis/trans-acting questions
Replies: 0
Views: 498

Connection between opioid receptors and fatty acid receptors

... that during some ancient era these receptors were more similar to FFAR and they all are probably able to lose sensitivity if something over activates them. For example if blood gets fatty it make it more viscose and likelier to spread slower but if FFAR senses too much fat it could widen ...

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by mhein
Tue Jul 10, 2012 2:00 pm
 
Forum: Evolution
Topic: Connection between opioid receptors and fatty acid receptors
Replies: 4
Views: 3933
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