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From which cell type found in the gastrointestinal tract is cholecystokinin (CCK) secreted?

There are a wide range of enteroendocrine cell types (see below) but it is specifically the 'I-cells' of the duodenum that secrete CCK. CCK is responsible for modulation of bile secretion, exocrine pancreas ...
CG
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Explain why DNA replication is semi-conservative

When DNA is replicated, the original DNA double helix is separated into two strands. Each strand is used as a template for complimentary free nucleotides to bind to and create new complimentary DNA strand. T...
Answered by • Biology tutor
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How can I improve my listening skills?

The best way to improve your listening skills in a language is to listen! Start with easier activities and then work your way to the harder ones. Step 1 - Start off by listening to tracks appropriate to your...
MC
Answered by Megan C. • French tutor
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How do I form the trapassato prossimo (pluperfect) tense in Italian? When do I use it?

The pluperfect in Italian is a composite (or if you want to sound fancy, a periphrastic) tense, like the passato prossimo (e.g. ho finito , 'I have finished'), so we make it by combining an auxiliary verb wi...
LK
Answered by Lottie K. • Italian tutor
6311 Views

How can I improve my vocabulary for my test on household rooms?

For example, a bedroom, you can annotate a picture of one with french words associated with each piece of furniture. Using a visual aid could help improve your memory. Then, in your own room, you can put up ...
AE
Answered by Abigail E. • French tutor
2443 Views