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Campbell Biology, 10th edition Test Bank All Chapters
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1) Cells are _____. A) only found in pairs, because single cells cannot exist independently B) limited in size to 200 and 500 micrometers in diameter C) characteristic of eukaryotic but not prokaryotic organisms D) characteristic of prokaryotic and eukaryotic organisms 2) In comparison to eukaryotes, prokaryotes _____. A) are more structurally complex B) are larger C) are smaller D) do not have membranes 3) Which of the following types of cells utilize deoxyribonucleic acid (DNA) as their geneti...
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Test Bank for Biology Exploring the Diversity of Life, 4th Canadian Edition
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Test Bank for Biology Exploring the Diversity of Life, 4th Canadian Edition
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Biology A & B Revision Bundle
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This Bundle contains Revision Papers For Biology A & B with complete solutions for students' revision and Exam Preparations.
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OCR 2023 Biology B H422/03: Practical skills in biology A Level Question Paper & Mark Scheme (Merged)
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Apoptosis is the programmed cell death of damaged or unwanted cells. 
(a) Fig. 1.1 shows a transmission electron micrograph (TEM) of apoptosis of a leucocyte. 
Fig. 1.1 
A 
B 
C 
(i) Name the following structures and processes shown in Fig. 1.1: 
• the structure labelled A forming in the cell surface membrane 
• the process occurring to the organelle labelled B 
• the structure labelled C. 
Structure A ...........................................................................................
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OCR 2023 Biology B H422/02: Scientific literacy in biology A Level Question Paper & Mark Scheme (Merged)
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1 This question is based on the Advance Notice Article ‘Development of therapeutic antibodies 
for the treatment of disease’. 
(a) (i) State what is meant by the term antigen. 
........................................................................................................................................... 
. ..................................................................................................................................[1] 
(ii) Scientists can combine antibody fra...
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OCR 2023 Biology B H422/01: Fundamentals of biology A Level Question Paper & Mark Scheme (Merged)
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2 
OCR 2023 
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 image shows an erythrocyte after being placed in a solution. 
Which option explains the appearance of the erythrocyte? 
A The solution was distilled water. 
B The water potential of the solution is equal to the water potential of the cytoplasm of the 
erythrocyte. 
C The water potential of the solution was less negative than the cytoplasm of the eryth...
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OCR 2023 Biology A H420/03: Unified biology A Level Question Paper & Mark Scheme (Merged)
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(a) A light micrograph of a section through the trachea of a cat is shown in Fig. 1.1. 
Fig. 1.1 
A 
B 
C 
(i) Name the tissues labelled A and B in Fig. 1.1. 
A ........................................................................................................................................ 
B ........................................................................................................................................ 
[2] 
(ii) Name the two types of cell in the box labelled C in...
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OCR 2023 Biology AH420/02: Biological diversity A Level Question Paper & Mark Scheme (Merged)
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2 
OCR 2023 
Section A 
You should spend a maximum of 20 minutes on this section. 
Write your answer to each question in the box provided. 
1 Which option correctly describes a tissue? 
A A group of cells performing similar functions 
B A group of organs performing a specific function 
C A group of similar cells performing a specific function 
D A group of similar cells performing a variety of functions 
Your answer [1] 
2 Bone marrow stem cells are a source of erythrocytes. 
Which statement abo...
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OCR 2023 Biology A H420/01: Biological processes A Level Question Paper & Mark Scheme (Merged)
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2 
OCR 2023 
Section A 
You should spend a maximum of 20 minutes on this section. 
Write your answer to each question in the box provided. 
1 Which description of biological molecules is correct? 
A DNA and RNA are both polymers of nucleotides. 
B Hydrolysis of sucrose produces fructose and β-glucose. 
C Proteins are polymers of amino acids and are broken down in condensation reactions. 
D Starch is a polymer of the monosaccharide maltose. 
Your answer [1] 
2 Which statement about lipids is cor...
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OCR 2023 Biology A H020/02: Depth in biology AS Level Question Paper & Mark Scheme (Merged)
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(a) Fig. 1.1 shows two cubes that represent a large and a small multicellular plant. 
Fig. 1.1 
Large multicellular 
plant 
Small multicellular 
plant 
Length = 2cm 
Width = 2 cm 
Depth = 2cm 
Surface area : volume 
= 6:1 
(i) Using the data provided in Fig. 1.1, calculate the surface area : volume of the large 
multicellular plant. 
Surface area: volume = ..........................................................[2] 
(ii) Explain why a large multicellular plant needs a transport system but a sm...
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OCR 2023 Biology A H020/01: Breadth in biology AS Level Question Paper & Mark Scheme (Merged)
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Section A 
You should spend a maximum of 25 minutes on this section. 
Write your answer for each question in the box provided. 
1 Which statement describes a problem that has resulted from the increased use of antibiotics? 
A Penicillin can no longer be used to treat infections. 
B Rates of MRSA infection have increased. 
C Some bacteria and fungi have evolved resistance to antibiotics. 
D Viral infections can no longer be treated with antibiotics. 
Your answer [1] 
2 The diagram shows a compute...
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Biology Exam 1 Study Guide Chapter 2 Questions and Answers
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Biology Exam 1 Study Guide Chapter 2 
Questions and Answers 
Explain the difference between organic and inorganic molecules -Answer-Organic has 
carbon skeletons and inorganic molecules do not. Organisms are mostly made up of 
organic compounds and inorganic are important for water salt etc 
What is an atom? -Answer-Smallest particle of an element 
What is an element? -Answer-Cannot be broken down further by ordinary chemical 
means 
What are the three parts of an atom? What are the charges? -An...
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