100% satisfaction guarantee Immediately available after payment Both online and in PDF No strings attached
logo-home
OCR Foundation GCSE Combined Science Biology A Gateway Science J250_01: Paper 1 (Foundation Tier) question-paper june 2024 $16.49   Add to cart

Exam (elaborations)

OCR Foundation GCSE Combined Science Biology A Gateway Science J250_01: Paper 1 (Foundation Tier) question-paper june 2024

 0 view  0 purchase
  • Course
  • Ocr
  • Institution
  • Ocr

OCR Foundation GCSE Combined Science Biology A Gateway Science J250_01: Paper 1 (Foundation Tier) question-paper june 2024

Preview 3 out of 19  pages

  • November 1, 2024
  • 19
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • Ocr
  • Ocr
avatar-seller
yestudyone
Oxford Cambridge and RSA
F
Please write clearly in black ink. Do not write in the barcodes.
First name(s)
Last name
Centre number
Candidate number
OCR is an exempt Charity
Turn over
Friday 10 May 2024 · Morning
GCSE (9·1) Combined Science A
(Gateway Science)
J250/01 Biology (Foundation Tier)
Time allowed: 1 hour 10 minutes
*9980594585*
*
J
2
5
0
0
1
*
You must have:
· a ruler (cm/mm)
You can use:
· a scientific or graphical calculator
· an HB pencil
INSTRUCTIONS
· Use black ink. You can use an HB pencil, but only for graphs and diagrams.
· Write your answer to each question in the space provided. If you need extra space use
the lined pages at the end of this booklet. The question numbers must be clearly shown.
· Answer all the questions.
· Where appropriate, your answer should be supported with working. Marks might be
given for using a correct method, even if your answer is wrong.
INFORMATION
· The total mark for this paper is 60.
· The marks for each question are shown in brackets [ ].
· Quality of extended response will be assessed in questions marked with an asterisk (*).
· This document has 20 pages.
ADVICE
· Read each question carefully before you start your answer.
© OCR 2024 [601/8687/2]
DC (ST/CT) 320471/6

, 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 A student prepares a microscope slide to view colourless plant cells.

Which type of substance is used to colour the cells?

A Acid

B Hormone

C Lipid

D Stain


Your answer [1]


2 The total magnification of an image viewed using a light microscope is calculated using a
formula.

What is the correct formula for total magnification?

A Total magnification = eyepiece lens magnification × objective lens magnification

B Total magnification = eyepiece lens magnification – objective lens magnification

C Total magnification = eyepiece lens magnification + objective lens magnification

D Total magnification = eyepiece lens magnification ÷ objective lens magnification


Your answer [1]


3 Plasmids are small rings of genetic material.

Which row describes where plasmids are found?

Where they are found Type of cell

A cytoplasm eukaryotic

B cytoplasm prokaryotic

C nucleus eukaryotic

D nucleus prokaryotic



Your answer [1]
© OCR 2024

, 3
4 The graph shows the effect of pH on the activity of two enzymes.

Identify the pH where both enzymes are active.




Enzyme activity




2 4 6 8 10 12 14
pH

A pH 4

B pH 6

C pH 8

D pH 10


Your answer [1]




© OCR 2024 Turn over

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 yestudyone. Stuvia facilitates payment to the seller.

Will I be stuck with a subscription?

No, you only buy these notes for $16.49. You're not tied to anything after your purchase.

Can Stuvia be trusted?

4.6 stars on Google & Trustpilot (+1000 reviews)

75323 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
$16.49
  • (0)
  Add to cart