GCSE OCR Biology B Paper 2

Mock test. 1 hour and 45 minutes. 90 marks available.

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OCR Biology B Paper 2

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OCR Biology B Paper 2

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#1. Which of the following are strategies organisms use to adapt to changing abiotic conditions?

Select all that apply:

#2. What do we call animals that only eat plants?

#3. How much of the atmosphere is composed of nitrogen?

#4. Which part of the heart separates the two sides?

#5. What is the role of coronary arteries?

#6. Which square instrument do we use for randomly sampling population sizes?

The Heart GCSE

#7. Where does blood entering the heart through the pulmonary veins come from?

#8. Which of the following are prokaryotes?

Select all that apply:

#9. Which of the following are factors that affect the rate of diffusion?

Select all that apply:

#10. Through which process do chemicals move across synapses?

#11. Which of these substances is sometimes added to water to make it potable?

#12. Which of the following is the source of oil and gas?

#13. Is diffusion an active or a passive process?

#14. What is the word equation for photosynthesis? ? In some examples you might also see sunlight and chlorophyll above and below the arrow.

#15. In which sub-cellular structure inside plant cells does photosynthesis occur?

#16. Which of the following is the source of coal?

#17. Which of the following organisms belong to the kingdom – animals?

Select all that apply:

#18. If grass is eaten by a rabbit and a rabbit is eaten by a hawk. What level of consumer is the hawk?

#19. What does μm stand for?

#20. Where are relay neurones found?

#21. The pacemaker cells tell the heart when to beat, where are they located?

#22. What is the definition of resolution?

#23. Why is the Surface area : Volume ratio so important when it comes to exchange of substances?

#24. Bacterial cells commonly have a flagellum. What is the role of this structure?

#25. Which of these are examples of blood vessels?

Select all that apply:

#26. Decomposers break down dead animal and plant material – what happens to the carbon inside the dead organisms?

#27. What is the field of view of a microscope?

#28. Which of the following features are found in veins?

#29. Why is there a size limit to cells?

#30. What are the upper chambers of the heart called?

#31. Where are nitrogen-fixing bacteria found in plants such as peas and beans?

#32. What do we call the process by which farmers change the crops they grow each year to maintain nitrogen in the soil?

#33. Which of the following is the correct word equation for aerobic respiration?

#34. Multicellular organisms are too large to allow diffusion through their cells to provide the necessary resources. Instead we have transport systems. What is the name of the transport system that uses capillaries to transport substances via the blood?

#35. Which type of factor is soil composition?

#36. What natural source of nitrogen is sometimes added to fields by farmers?

#37. Which description most accurately describes osmosis?

#38. What is potable water?

#39. Why is the rate of an enzyme controlled reaction highest at an optimum pH?

#40. We sometimes use a transect to perform systematic sampling. This involves which of the following?

#41. Is osmosis an active or a passive process?

#42. How are cells that line the small intestine specialised?

#43. When fossil fuels are burned they release carbon into the atmosphere – which of the following are fossil fuels?

#44. How does nitrogen in plants get into the soil?

#45. Why is catalysis by enzymes important for life processes?

#46. Which of the following is part of the central nervous system (CNS)?

#47. Which type of white blood cell engulfs (surrounds) foreign cells in order to digest them?

#48. What travels along neurones to pass information through the nervous system?

#49. True or false – carbon dioxide is removed from the atmosphere as it dissolves in the oceans?

#50. Glucose enters the body via the?

#51. What is the role of the nucleus?

#52. Which hormone is released from the adrenal gland?

#53. Electron microscopes have much higher resolution and magnification than light microscopes. What are the advantages of this?

#54. Palisade cells are found just below the epidermis of leaves. What is their role and how are they adapted to perform it?

#55. The left ventricle has a thicker muscle wall, why is this the case?

#56. The binomial name for tigers is Felis tigris. Which part of the name represents the genus?

#57. What effect does adrenaline have on the liver?

#58. Capillaries are only one cell thick and have thousands of branches. What is the function of capillaries?

#59. When is adrenaline released?

#60. Which of the following is an effect stimulated by the thyroxine hormone?

#61. True or false – plants remove carbon from the atmosphere during photosynthesis

#62. Which sub-cellular structures can be found in bacteria?

Select all that apply:

#63. Organs that exchange substances into and out of the body have:

#64. What is the binomial name for humans?

#65. What are enzymes?

#66. Which type of white blood cells produce antibodies that stick to the antigens of pathogens?

#67. What is the function of red blood cells (Erythrocytes)?

#68. The Nervous System is made up of two parts, the Central Nervous System (CNS) and what other part?

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#69. What is the heart rate measured in?

#70. What is the Lock and Key Model of enzyme action?

#71. Cardiac output is measured as the volume of blood pushed through the aorta each minute. Which is the correct equation for cardiac output?

#72. Which type of factor is competition?

#73. The female gametes (egg cells) are adapted to their function. Which of the following are adaptations of egg cells?

Select all that apply:

#74. Where does the water in lakes and rivers end up?

#75. Which of the following is part of the central nervous system (CNS)?

#76. Oxygen enters the body via the?

#77. By which process does water in the oceans and lakes move into the atmosphere?

#78. Which of the following is the equation for total magnification?

#79. What are the three domains?

#80. The drug called Digitalis slows the heart rate. Where does the drug come from?

#81. Through which process do nutrients enter root hair cells from the soil?

#82. Nitrogen is often found in a particular form in the soil what is this form?

#83. Match the description to the correct term. All of the organisms that live in a particular pond.

#84. Cells are adapted to perform a specific function. Why do cells in the pancreas have lots of ribosomes?

#85. What are the monomers of carbohydrates?

#86. Which organisms maintain the nitrogen levels in the soil?

#87. What effects does adrenaline have on the heart?

Select all that apply:

#88. How do we describe the periodic changes in population size of predators and prey – explained by increases in numbers of predators due to increased numbers of prey and then decreasing numbers of prey due to increasing numbers of predators and so on?

#89. By which process does water in the atmosphere become part of clouds?

#90. Match the description to the correct term. All of the individuals of a species that live in a particular woodland.

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