Exam (elaborations)
Biology CCEA AS Level 1.7 (Tissues and Organs) 2024/2025 already graded A+
- Course
- Institution
Biology CCEA AS Level 1.7 (Tissues and Organs) 2024/2025 already graded A+
[Show more]
Content preview
Biology CCEA AS Level 1.7 (Tissues andOrgans)
What is a tissue? - ANSA group of similar cells that carry out the same functions
What are organs? - ANSTwo or more kinds of tissue together performing special body functions
What is the primary function of the ileum? - ANSAbsorption of digested food
What is the primary function of a leaf? - ANSPhotosynthesis
What is the function of the serosa? - ANS- The outer layer of connective tissue
- Thin protective and supportive coat
What is the function of the muscularis externa? - ANS- To move food along and mix it with
digestive juices
What are the two layers of the muscularis externa? - ANS- An outer layer of longitudinal muscle
- An inner layer of circular muscle
What is the submucosa? - ANS- Largely composed of connective tissues
- Contains many blood vessels and lymphatic vessels
What is the muscularis mucosa? - ANS- Thin layer of muscle between mucosa and submucosa
- Contraction helps move the villi
- Helps to increase contact with digested food
What is the mucosa? - ANS- Layer of contact with digested food in the ileum lumen
- Increase SA due to villi and microvilli
How are the columnar epithelium cells adapted for their purpose? - ANS- Boarder of microvilli
increases SA for absorption
- Enzymes and specific carrier proteins on cell membranes to complete digestion and absorb
food molecules
- Contain many mitochondria for ATP production
What is the function of the columnar epithelium cells? - ANSDigestion and absorption of food
molecules
Why does the lining of the ileum secret mucus? - ANS- Provides a protective layer
- Lubricates lining of alimentary canal
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 Ashley96. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $9.99. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
52510 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now