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GCSE OCR Biology B Paper 1
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#1. What effect does adrenaline have on the liver?
#2. Why do plants need nitrogen?
#3. How many chambers does the heart have?
#4. If grass is eaten by a rabbit and a rabbit is eaten by a hawk. What level of consumer is the hawk?
#5. Through which process would air freshener sprayed in one corner of a room disperse?
#6. Which of the following are prokaryotes?
Select all that apply:
#7. Complete the equation used to calculate population size: population size = ………….. x total size of it habitat / total area of quadrats
#8. The male gametes (sperm cells) are adapted to their function. Which of the following are adaptations of sperm cells?
Select all that apply:
#9. What is the cell wall made from in bacteria?
#10. What do we call animals that are eaten by other animals?
#11. Is the following statement accurate: nitrogen be can be moved back and forth from the atmosphere and into the soil by bacteria.
#12. Sometimes it is not possible to measure the number of organisms in a transect, for example when measuring the distribution of plants. In this case we use an alternative measure called what?
#13. Which of the following is the correct word equation for aerobic respiration?
#14. Capillaries are only one cell thick and have thousands of branches. What is the function of capillaries?
#15. What is the role of amylase?
#16. Specialised cells have different compositions of sub cellular structures in order to perform their role. Why would specialised cells have lots of mitochondria?
#17. What is the cell wall made from in plants?
#18. What are cilia?
#19. 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?
#20. What are biotic factors?
#21. Place the measurement units in order from from biggest to smallest. micrometres, picometres, kilometres, metres, nanometres, millemetres ? Use British Spelling - Metres* NOT Meters
#22. What is the purpose of respiration?
#23. When is adrenaline released?
#24. What is meant by an active process?
#25. What is potable water?
#26. Why do high breathing and heart rates remain after exercise?
Select all that apply:
#27. Which term do we use to describe the relationships between species that depend on each other for resources?
#28. Which of the following are 3 of the adaptations of leaves for efficient photosynthesis?
Select all that apply:
#29. Name two resources that both animals and plants need to survive and reproduce? ? structure your answer like this: ..... and .....
#30. Name one hormone that is released from the ovaries?
#31. Which of these are examples of blood vessels?
Select all that apply:
#32. What is the molecular formula for glucose?
#33. Which of the following can we use to investigate the effect of abiotic factors on the distribution of organisms?
#34. What is the role of the inferior vena cava?
#35. What is the role of lipase?
#36. Which process in the body produces carbon dioxide?
#37. How do substances typically move into and out of the body, for example, oxygen in the lungs? ? 1 word answer
#38. What do we call the process by which farmers change the crops they grow each year to maintain nitrogen in the soil?
#39. The water cycle has one part where water is in solid form – what is that form of storage?
#40. Which of the following are 3 of the adaptations of leaves for efficient photosynthesis?
Select all that apply:
Remember to carefully read the question, if you selected Root hair cells, you were mistaken because the question asked about leaves, not roots.
#41. What is enzyme specificity?
#42. Arteries carry blood around the body, do they carry blood away from or towards the heart?
Remember – Arteries Away
#43. Which type of factor is parasitism?
#44. Is osmosis an active or a passive process?
#45. Which of these is an effector?
#46. What natural source of nitrogen is sometimes added to fields by farmers?
#47. Urea is produced when amino acids are broken down. Which organ processes urea?
#48. Growth is increased during puberty. Why is this?
#49. How do most plants get their nitrogen?
#50. What is the function of platelets?
#51. Which of the following is the source of oil and gas?
#52. True or false – volcanism removes carbon from the atmosphere
#53. Increases in thyroxine concentration in the blood cause a decrease in the amount of thyroxine released. What kind of feedback mechanism is this?
#54. Which type of factor is disease?
#55. Producers are organisms which do what?
#56. What effects does adrenaline have on the heart?
Select all that apply:
#57. What is the role of glycogen synthase?
#58. Where does the water in lakes and rivers end up?
#59. Which of the following describes metabolic rate?
#60. True or false – carbon dioxide is removed from the atmosphere as it dissolves in the oceans?
#61. Which of the following are the 4 factors that affect the rate of photosynthesis?
Select all that apply:
#62. Which type of white blood cell engulfs (surrounds) foreign cells in order to digest them?
#63. What are the three domains?
#64. We sometimes use a transect to perform systematic sampling. This involves which of the following?
#65. What is the function of white blood cells?
#66. What are the monomers of carbohydrates?
#67. Upon the release of adrenaline do blood vessels widen, narrow or both?
The blood vessels are constricted or dilated depending on where the blood flows.
The muscles required for running for example are dilated since they are required to match the “fight or flight” response. Others are constricted as they are temporarily deemed less important.
#68. Hormones are released by a range of glands, name one gland that releases hormones. ? do not include the word "gland" or "glands"
#69. The left ventricle has a thicker muscle wall, why is this the case?
#70. The 5 kingdoms of life are Animals, Plants, Fungi, Protists and Prokaryotes. Which kingdom do algae belong to?
#71. What are cells that line structures in the body and have cilia?
#72. Which of these substances is sometimes added to water to make it potable?
#73. Which square instrument do we use for randomly sampling population sizes?
#74. What is the role of the acrosome on a sperm cell?
#75. Surfaces where diffusion takes place allowing substances to enter the body usually have which characteristics?
Select all that apply:
#76. Organs that exchange substances into and out of the body have:
#77. Which of the following features are found in veins?
#78. What is the role of effectors?
#79. How are cells that line the small intestine specialised?
#80. Is active transport an active or a passive process?
#81. Which sub-cellular structures can be found in animals?
Select all that apply:
#82. What is the field of view of a microscope?
#83. What is the role of DNA synthase?
#84. What are abiotic factors?
#85. Cardiac output is measured as the volume of blood pushed through the aorta each minute. Which is the correct equation for cardiac output?
#86. Why do we use systematic or random sampling of an area to determine the distribution or abundance of organisms?
#87. Why is the Surface area : Volume ratio so important when it comes to exchange of substances?
#88. Match the description to the correct term. All of the organisms that live in a particular pond.
#89. Cells are adapted to perform a specific function. Why do cells in the pancreas have lots of ribosomes?
#90. Which are the two kinds of sampling we normally use?
Select all that apply: