100% satisfaction guarantee Immediately available after payment Both online and in PDF No strings attached
Previously searched by you
OCR MERGED QUESTION PAPER AND MARK SCHEME GCSE (9–1) Biology B (Twenty First Century Science)J257/04 Depth in Biology (Higher Tier) FOR JUNE 2024£9.85
Add to cart
Friday 7 June 2024 – Afternoon
GCSE (9–1) Biology B (Twenty First Century Science)
J257/04 Depth in Biology (Higher Tier)
Time allowed: 1 hour 45 minutes
, 2
BLANK PAGE
PLEASE DO NOT WRITE ON THIS PAGE
, 3
1 Aerobic and anaerobic cellular respiration take place in human body cells.
(a) Put one tick (✓) in each row of the table to describe aerobic and anaerobic respiration in animal
cells such as human body cells.
Both Neither
Only Only
aerobic and aerobic nor
aerobic anaerobic
anaerobic anaerobic
Is exothermic
Produces lactic acid
Requires glucose
Requires oxygen
[4]
(b) Complete the sentence about ATP production in respiration.
Use words from the list.
more than less than equal to
The amount of ATP produced per molecule of reactant in aerobic respiration is
........................................... the amount of ATP produced per molecule of reactant in anaerobic
respiration. [1]
Turn over
, 4
2 The diagram shows some different species of flowers that grow in a field.
Crocus
Snowdrop
Daisy
Grass
A student wants to estimate the total number of snowdrops in the field.
They collect data from six small squares of the field.
Small square 1 2 3 4 5 6
Number of snowdrops 5 8 2 9 0 6
(a)* Describe a method to collect the data in the table.
Include:
• the apparatus needed
• how to use the apparatus on the field
• how to avoid bias in the data.
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 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 williesmaish2999. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for £9.85. You're not tied to anything after your purchase.