Exam (elaborations)
#O C R GCSE (9–1) Biology B (Twenty First Century Science) J257/04 Depth in Biology (Higher Tier) June 2023
#O C R GCSE (9–1) Biology B (Twenty First Century Science) J257/04 Depth in Biology (Higher Tier) June 2023
[Show more]
Seller
Follow
Content preview
#O C RGCSE (9–1) Biology B (Twenty First Century Science)
J257/04 Depth in Biology (Higher Tier)
June 2023
Time allowed: 1 hour 45 minutes
H
You must have:
a ruler (cm/mm)
You can use:
an HB pencil
a scientific or graphical calculator
Please write clearly in black ink. Do not write in the barcodes.
Centre number Candidate number
First name(s)
Last name
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 90.
• 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 24 pages.
ADVICE
• Read each question carefully before you start your answer.
2023 Turn over
, 2
1 A scientist cuts a thin slice from a plant stem, as shown in Fig. 1.1.
The slice of stem contains three different tissues.
Fig. 1.1
Tissue B
Tissue A
Plant stem
Tissue C
(a) Draw lines to connect the description of each tissue with its correct name.
One has been done for you.
Description Name
Tissue A
transports water from the Capillary
plant’s roots
Meristem
Tissue B
is made of unspecialized cells
Phloem
Tissue C
transports sugar from
Xylem
the plant’s leaves
[1]
2023
, 3
(b) The scientist places the slice of stem on a microscope slide and adds a cover slip.
The scientist uses the light microscope in Fig. 1.2 to look at the slice of stem on the slide.
Fig. 1.2
Eyepiece lens
Coarse focus
control
Objective lenses
Fine focus
Stage control
Mirror
(i) Statements A to E describe steps the scientist uses to look at the slide under the
microscope.
They are not in the correct order.
A Place the slide on the stage.
B Look into the eyepiece lens.
C Use the coarse focus control to move the objective lens down towards the stage.
D Use the fine focus control to move the objective lens until the image is as clear as
possible.
E Use the coarse focus control to move the objective lens upwards until the image is
clear.
Write the letters in the boxes to describe the correct order of the steps.
One has been done for you.
A
[3]
(ii) Suggest two ways the scientist can work safely when using the microscope.
1 ........................................................................................................................................
...........................................................................................................................................
2 ........................................................................................................................................
...........................................................................................................................................
[2]
2023 Turn over
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 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 JOY1ACADAMY. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for £14.58. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
75057 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy revision notes and other study material for 14 years now