100% satisfaction guarantee Immediately available after payment Both online and in PDF No strings attached
logo-home
OCR MERGED QUESTION PAPER AND MARK SCHEME A Level Biology B (Advancing Biology)H422/01Fundamentals of biology FOR JUNE 2024 $11.49   Add to cart

Exam (elaborations)

OCR MERGED QUESTION PAPER AND MARK SCHEME A Level Biology B (Advancing Biology)H422/01Fundamentals of biology FOR JUNE 2024

 8 views  0 purchase
  • Course
  • Biology
  • Institution
  • Biology

OCR MERGED QUESTION PAPER AND MARK SCHEME A Level Biology B (Advancing Biology)H422/01Fundamentals of biology FOR JUNE 2024

Preview 4 out of 68  pages

  • October 31, 2024
  • 68
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • Biology
  • Biology
avatar-seller
williesmaish2999
Wednesday 5 June 2024 – Afternoon
A Level Biology B (Advancing Biology)
H422/01 Fundamentals of biology
Time allowed: 2 hours 15 minutes




Turn over

, 2
Section A

You should spend a maximum of 40 minutes on this section.

Write your answer for each question in the box provided.


1 The diagram shows a molecule of α-glucose.

X

O
H H
H
OH H
Y OH

Z OH

The table below shows chemical groups X, Y and Z labelled on the diagram.

Chemical group
X Y Z
A OH CH2OH H
B CH2OH OH H
C H OH CH2OH
D H CH2OH OH


Which of the rows, A to D, is correct?


Your answer
[1]




© OCR 2024

, 3
This is an electron micrograph of the ultrastructure of a leucocyte.




L




× 8000

Use the electron micrograph to answer questions 2 and 3.


2 Which of the options identifies the leucocyte in the electron micrograph?

A Lymphocyte

B Macrophage

C Monocyte

D Neutrophil


Your answer
[1]


3 What is the role of the organelle labelled L?

A Aerobic respiration

B Lipid synthesis

C Protein synthesis

D Transport


Your answer
[1]
© OCR 2024 Turn over

, 4
4 Which of the statements about the blood clotting process is not correct?

A Fibrinogen fibres form a mesh to trap red blood cells.

B Platelets are activated and release thromboplastin.

C Thrombin hydrolyses a soluble plasma protein into insoluble protein fibres.

D Thromboplastin requires calcium ion cofactors.


Your answer
[1]


5 The following statement describes a feature of the genetic code:

The same codon codes for the same amino acid in almost all species.

Which feature of the genetic code is being described?

A Degenerate

B Non-overlapping

C Triplet

D Universal


Your answer
[1]




© OCR 2024

The benefits of buying summaries with Stuvia:

Guaranteed quality through customer reviews

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

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

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 williesmaish2999. Stuvia facilitates payment to the seller.

Will I be stuck with a subscription?

No, you only buy these notes for $11.49. You're not tied to anything after your purchase.

Can Stuvia be trusted?

4.6 stars on Google & Trustpilot (+1000 reviews)

79373 documents were sold in the last 30 days

Founded in 2010, the go-to place to buy study notes for 14 years now

Start selling
$11.49
  • (0)
  Add to cart