100% satisfaction guarantee Immediately available after payment Both online and in PDF No strings attached
Previously searched by you
024 aqa as biology 7401/2 paper 2 with 150 questions and correct detailed answers (verified answers) |already graded a+|| brand new!!$17.99
Add to cart
024 aqa as biology 7401/2 paper 2 with 150 questions and correct detailed answers (verified answers) |already graded a+|| brand new!!
3 views 0 purchase
Course
024 aqa as biology
Institution
024 Aqa As Biology
024 aqa as biology 7401/2 paper 2
with 150 questions and correct
detailed answers (verified answers)
|already graded a+|| brand new!!
State the enzyme that digests stach-ANSWER-Amylase
Name the product of starch digestion-ANSWER-Maltose
State the name of 2 glands that produce amylase-ANSWER-S...
2024 aqa as biology 7401/2 paper 2
with 150 questions and correct
detailed answers (verified answers)
|already graded a+|| brand new!!
State the enzyme that digests stach-ANSWER-Amylase
Name the product of starch digestion-ANSWER-Maltose
State the name of 2 glands that produce amylase-ANSWER-Salivary
glands and pancreas
Name the enzyme that breaks down maltose-ANSWER-Maltase
State where maltase is found-ANSWER-Epithelial lining
State the products of maltose digestion-ANSWER-Glucose
Name the chemical reaction involved in digestion-ANSWER-Hydrolysis
,2|Page
Explain why maltase will only digest maltose (3)-ANSWER-Maltase
has an active site with a specific shape. Only maltose can fit. To form
enzyme-substrate complexes.
Name the bond broken in carbohydrate digestion-ANSWER-Glycosidic
Describe the full digestion of starch by enzymes (5)-ANSWER-Amylase
hydrolyses glycosidic bonds in starch to produce maltose.
Maltase hydrolyses the glycosidic bond in maltose to produce glucose
Explain how glucose is absorbed into the blood (4)-ANSWER-Sodium
ions actively transported out of cell into blood by sodium potassium
pump. Maintains concentration gradient of sodium ions between ilium
and epithelial cell. Sodium ions and glucose diffuse into the cell through
a co-transport protein. Sodium ions enter down their concentration
gradient, glucose against its concentration gradient. Glucose diffuses
into blood through carrier protein
Describe and explain how epithelial cells are adapted for absorbing
glucose/amino acids(6)-ANSWER-Micro villi;
, 3|Page
Increase surface area = more enzymes like maltase/co-transport
proteins;. So faster production/diffusion of glucose so more efficient
digestion;.
Lots of Mitochondria; to produce atp for active transport; to maintain a
concentration gradient of sodium ions
Name the enzyme that digest large polypeptides into smaller
polypeptides-ANSWER-Endopeptidase
Name the enzyme that removes terminal or end amino acids-ANSWER-
Exopeptidase
Name the enzyme that digests dipeptides-ANSWER-Dipeptidase
State where endo and exopeptidases work-ANSWER-The stomach
Activation energy-ANSWER-energy required to bring about a reaction.
The activation energy is lowered by the presence of enzymes.
active immunity-ANSWER-resistance to disease resulting from the
activities of an individual's own immune system whereby an antigen
induces plasma cells to produce antibodies.
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller peakview69. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $17.99. You're not tied to anything after your purchase.
