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B2 Additional Biology Quick fire questions on whiteboards

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1 B2 Additional Biology Quick fire questions on whiteboards
Cell structure & specialised cells Diffusion Photosynthesis Distribution Enzymes Respiration

2 General Exam Technique
Questions Describe Explain Evaluate; compare /contrast One point made = 1 mark; LOOK at the number of marks Long questions: underline key parts of the question or any important parts of text given If you don’t recognise the context of a question, think about the topics that it might be about

3 Question 1 ? cytoplasm cell wall chloroplast cell membrane

4 Question 2 ? cell wall cell membrane vacuole cytoplasm

5 Question 3 ? cytoplasm vacuole chloroplast nucleus

6 Question 4 cytoplasm cell wall chloroplast cell membrane ?

7 Question 5 ? cytoplasm vacuole chloroplast nucleus

8 Question 6 cytoplasm vacuole chloroplast nucleus ?

9 Question 7 Which structures are present in animal and plant cells?
Vacuole, nucleus and cell membrane Nucleus, cell wall, cytoplasm Nucleus, cell membrane, cytoplasm Cell membrane, chloroplast, cell wall

10 Question 8 Which structures are present only in plant cells?
Cell membrane, nucleus, cytoplasm Cell wall, cell membrane, vacuole Nucleus, chloroplast, cytoplasm Chloroplast, cell wall, vacuole

11 Question 9 What is the function of the chloroplast? Controls the cell
Stores water and mineral ions Makes glucose by photosynthesis Controls what enters and leaves the cell

12 Question 10 What is the function of the cell membrane?
Supports and protects the cell Controls the cell Controls what enters and leaves the cell Metabolic reactions occur here

13 Question 11 What is the function of the cell wall?
Supports and protects the cell Stores water and mineral ions Controls the cell Controls what enters and leaves the cell

14 Question 12 What is the function of the cytoplasm?
Stores water and mineral ions Metabolic reactions occur here Controls what enters and leaves the cell Supports the cell

15 Question 13 What is the function of the sap vacuole?
Supports and protects the cell Controls what enters and leaves the cell Controls the cell Stores water and mineral ions

16 Question 14 What is the function of the nucleus?
Supports and protects the cell Controls the cell Controls what enters and leaves the cell Metabolic reactions occur here

17 Question 15 The two cells illustrated below show a typical:
Red blood cell and root hair cell Ciliated cell and xylem vessel Liver cell and palisade cell Muscle cell and mesophyll cell

18 a) Similarities: Question 16 Yeast Cell Bacterial Cell b) Differences:

19 Question 16 Similarities: Both have a cell wall Differences:
Yeast Cell Bacterial Cell Differences: Bacteria = no nucleus, no mitochondria Bacteria can have additional structures e.g. flagellum, capsule

20 Question 17 Name the cell Describe an adaptation Explain an adaptation

21 Sperm Cell Streamlined and a tail (‘flagellum’) to help it swim
Has lots of MITOCHONDRIA This allows it to release Lots of energy for swimming

22 Question 18 Name the cell Describe an adaptation Explain an adaptation

23 Palisade Cell LOTS of chloroplasts
This helps it absorb more light for photosynthesis

24 Question 19 Name the cell Describe an adaptation Explain an adaptation

25 Red Blood Cell It is a ‘bi-concave disc’
This increases its surface area to absorb oxygen It also has no nucleus This makes more space for oxygen

26 Question 20 Name the cell Describe an adaptation Explain an adaptation

27 Root Hair Cell Has a large surface area Has a thin cell membrane
This helps it absorb water and nutrients easier

28 Q21. What can this cartoon tell us about enzymes?

29 Boardworks GCSE Additional Science: Biology Enzymes
Q22) Name the structures Boardworks slide removed for copyright reasons Teacher notes This activity could be used to check students’ understanding of the lock and key model.

30 Question 23 Describe and explain what the graph shows [4]
Rate of reaction Temp (oC) 37

31 Boardworks GCSE Additional Science: Biology Enzymes
Q24) Match the reactant Boardworks slide removed for copyright reasons Teacher notes This matching activity could be used as a plenary or revision exercise on enzymes. Students could be asked to complete the questions in their books and the activity could be concluded by the completion on the IWB.

32 Question 25 Explain how fats are broken down in the digestive system.
Key words: lipase, enzymes, pancreas, liver, bile, neutralise, emulsify

33 Q26 Name TWO uses of proteases in industry.
Washing powders Slimming foods Producing glucose syrups Pre-digesting baby foods

34 Q27 Name one use of lipases in industry.
Washing powders Slimming foods Producing glucose syrups Pre-digesting baby foods

35 Q28 Name one use of isomerases in industry.
Washing powders Slimming foods Producing glucose syrups Pre-digesting baby foods

36 Q29) Which of the following is NOT a genuine advantage of using enzymes in industry
Can be re-used therefore reduced long-term costs Allow reactions to occur at lower temperatures, saving energy Denature at high temperatures Allow reactions to occur at lower temperatures, saving money

37 Q30) Define what ‘diffusion’ is
Gas / liquid High to low concentration Random movement

38 Q31) How proteins are made
Your DNA is separated into strands called ___________ Small sections of a chromosome are called _____ Genes code for a particular characteristic They do this by containing a code of _____ for a SPECIFIC sequence of _____ _____ The sequence of amino acids codes for a SPECIFIC _______ to be made E.g. a protein for blue eyes a) b) c) d) e)

39 Q32) How proteins are made?

40 Q33) a. Photosynthesis ~ What factors, to do with the lamp, could affect the rate of photosynthesis?
b) If you want to investigate how distance affects photosynthesis, how could you prevent the impact of heat from the lamp?

41 Q34) Leaf Structure – Name those parts and explain their function…
b)

42 Q35) Describe and explain the relationship shown by the graph
Stage 2 Photosynthesis Rate of Stage 1 Concentration of Carbon Dioxide

43 Q36) How could you scientifically investigate the change in plant species across this environment?
Key words: tape measure, transect, quadrat, regular intervals, count

44 Sampling Place tape measure across the area being investigated (i.e. pond to woods) This forms your TRANSECT line At REGULAR INTERVALS Along the transect, place your quadrat Count the no. of species present, and the no. of individuals of each species Repeat steps along another transect line

45 Q37) The table below shows the pH change of a solution containing lipase, milk and bile salts
Time pH 8.5 1 7.2 2 6.7 3 6.3 4 5.9 5 5.5 a) What causes the pH change? [2marks] b) Calculate the average change in pH between 2 and 5mins [2marks] Lipase breaks down fats in milk, producing fatty acids, which reduce pH / increase acidity (6.7 – 5.5) / 3 = 0.4

46 Q38) For person A, describe and explain how (& why) heart rate changes in the graph below…[6]

47 Describe and explain how heart rate changes in the graph below…
Heart rate increases as exercise occurs This is because muscle cells require more oxygen and glucose, and to get rid of CO2. Blood pumped faster. Heart rate remains high for a short while after exercising This is so muscle cells continue to get oxygen to break down any lactic which may have formed Heart rate decreases steadily back to resting

48 Q39) Using the graph, identify which athlete is the fitter, and three pieces of evidence for this
B

49 Using the graph, identify which athlete is the fitter, and three pieces of evidence for this
Person B = fitter Lower resting heart rate Heart rate doesn’t rise as much during exercise Heart rate doesn’t rise as quickly during exercise Heart rate returns to resting faster after exercise

50 Q40) Compare and contrast aerobic and anaerobic respiration [3]
Aerobic requires oxygen Aerobic releases more energy Aerobic produces CO2 and H2O Anaerobic produces lactic acid Both take place in mitochondria of cells


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