Exam (elaborations)
ACTUAL OCR 2024 OCR A Level Biology A May-June 2024 Question Paper 2 WITH MARK SCHEME
- Course
- Institution
ACTUAL OCR 2024 OCR A Level Biology A May-June 2024 Question Paper 2 WITH MARK SCHEME
[Show more]
Seller
Follow
maryjadeacademy4
Reviews received
Content preview
EXAM PREPTurn over
000171
, "#$%&&!'(&%)!*%!+((!*,(!+-./&(!%0!*,(!/-/($
12($(3!*%!4%5!'4!64$7%8!9-/($+
,**/+:;;*4$7%8/-/($+<#%.
=0!4%5!,->( -84!7++5(+!%$!?5($7(+@!3%!$(-#,!%5*!*%!
*4$7%8&-4AB.-7&<#%.
=C&&!,(&/!4%5!%5*!0%$!+5$(!
!" $%&"#'()*"+#,%,"-./#0-"+1)2"+#0%,"-./#3(,1)#2".2./#4(2"./#
56".21(7#8%7*.#%7+#.(#96)$#9(-"
000172
, 2
Section A
You should spend a maximum of 20 minutes on this section.
Write your answer to each question in the box provided.
1 Biomass is transferred through ecosystems.
What process makes biomass available for transfer to the next trophic level in the food chain?
A Excretion
B Growth
C Removal of undigested food
D Respiration
Your answer [1]
2 What explains why food chains rarely have more than five trophic levels?
A Parts of the food organism are not eaten by organisms higher in the food chain.
B Plants absorb only a small proportion of the Sun’s energy.
C There is a limit to the size to which a predator can grow.
D Transfer of biomass between trophic levels is inefficient.
Your answer [1]
© OCR 2024
000173
, 3
3 The rate at which plants produce biomass is known as productivity.
What is a suitable unit with which to measure productivity at different depths in the ocean?
A kg day–1 m–2
B kg day–1 m–3
C kg year–1 m2
D m kg–1 year –1
Your answer [1]
4 Microscopes vary in terms of magnification and resolution.
Which option describes the terms magnification and resolution?
A Magnification is the size of an image under a microscope and resolution is the sharpness of
that image.
B Magnification is the size of the image compared to the actual size and resolution is the ability
to distinguish two objects from one another.
C Resolution is the ability to make small objects appear larger and magnification is the ability
to distinguish two objects from one another.
D Resolution is the size of an image under a microscope and magnification is the sharpness of
that image.
Your answer [1]
© OCR 2024 Turn over
000174
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 maryjadeacademy4. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $5.49. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
64438 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now