Exam (elaborations)
BTEC Applied Science Unit 1 Biology Exam
- Course
- Institution
BTEC Applied Science Unit 1 Biology Exam ...
[Show more]
Content preview
BTEC Applied Science Unit 1 Biology Exam 2024-2025Describing what the nucleolus does. Answer Ribosomes and RNA are produced.
Describing what the cell wall does. Answer Provides rigidity and protection to the cell
Describing what the chloroplasts do. Answer Site of photosynthesis because they
contain chlorophyll
Describing what the plasmodesmata do. Answer A channel through the cell wall that
allows transport of materials from one cell to another
Explain what the amyoplasts do. -Answer Stores starch and, when the plant needs
energy, it converts the starch back into glucose.
Explain what the vacuole does. -Answer Stores water and chemicals for cell use. Also
maintains turgor of cell.
Describe the role of the tonoplasts - Answer Membrane the surrounds the vacuole.
Protects the vacuole, isolates it from harmful substances and controls water flow in and
out of the vacuole
Why are gram positive bacteria more sensitive to antibiotics? - Answer Permeable cell
wall whereas gram negative bacteria has a semi-permeable cell wall
Describe the adaptations found in a palisade cell - Answer Closely packed together
Chloroplasts
Large vacuole
, Explain why the palisade cell would contain a high amount of chloroplasts - Answer To
absorb a lot of light for photosynthetic activity
Explain why palisade cells are packed closely together - Answer Because they have to
create a continuous layer in the leaf
Explain why palisade cells have a large vacuole - Answer Because they have to maintain
turgor-to push against the cell wall, maintain its rigid shape
Describe the following adaptations of a root hair cell shape of root hair large vacuole
thin cellulose walls
Explain why root hair cells have an extended region called the root hair Because this
increases the surface area to allow maximum water movement into the cell.
Explain why root hair cells have a large vacuole It contains cell sap with a low water
potential to attract water into the cell.
Explain why root hair cells have thin cellulose walls - Answer Encourage the movement
of water and minerals into the cell. Short distance for osmosis and diffusion
Describe the adaptations of a sperm cell - Answer Loads of mitochondria
Shaped head containing acrosome with enzymes
Haploid nucleus
Tail for movement
Explain why a sperm cell has an undulipodium tail - Answer To enable the sperm to move
to the egg
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 Chrisyuis. 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)
84146 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now