AS
BIOLOGY
Paper 2
Thursday 23 May 2024 Morning Time allowed: 1 hour 30 minutes
Materials
For this paper you must have:
• a ruler with millimetre measurements
• a scientific calculator.
Instructions
• Use black ink or black ball-point pen.
• Fill in the boxes at the top of thi...
Thursday 23 May 2024 Morning Time allowed: 1 hour 30 minutes
Materials
For this paper you must have: For Examiner’s Use
a ruler with millimetre measurements Questio Mark
a scientific calculator. n
1
Instructions 2
Use black ink or black ball-point pen.
3
Fill in the boxes at the top of this page.
Answer all questions. 4
You must answer the questions in the spaces provided. Do 5
not write outside the box around each page or on blank
6
pages.
7
If you need extra space for your answer(s), use the lined pages at the end of
this book. Write the question number against your answer(s). 8
Show all your working. 9
Do all rough work in this book. Cross through any work you do
not want to be marked. TOTAL
Information
The marks for the questions are shown in brackets.
The maximum mark for this paper is 75.
May 2024 biology
,May 2024 biology
May 2024 biology
, 2
Do not write
outside the
Answer all questions in the spaces box
provided.
0 1 .1 Water has a high heat capacity and a large latent heat of vaporisation.
Describe the importance of each of these properties to living organisms.
[2 marks]
High heat capacity
Large latent heat of vaporisation
0 1 .2 Figure 1 shows that water loss from a porous pot can cause the upward
movement of water.
Figure 1
*02
IB/M/
* Jun24/7401/2
, 3
Do not write
outside the
Biologists have concluded that the experiment in Figure 1 box
supports the cohesion–tension theory of water transport in the
xylem.
Explain how this conclusion is supported by the experiment in [3 marks]
Figure 1.
0 1
.3 An air bubble was introduced into the glass tubing in Figure 1. The air
bubble moved a distance (d) of 1.5 cm in 120 minutes. The radius of the
lumen (hole) of the glass tubing was 0.6 cm
Use this information and the formula πr2d to calculate the rate of water
movement in the glass tubing in cm3 hour–1.
Use π = 3.14 in your calculation.
[1 mark]
Answer cm3 hour–1 6
Turn over ►
*03
IB/M/
* Jun24/7401/2
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 jaysoncairns17. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $15.29. You're not tied to anything after your purchase.
