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Quick fire questions on whiteboards - Cell structure & specialised cells - Diffusion - Photosynthesis - Distribution - Enzymes - Respiration.

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Presentation on theme: "Quick fire questions on whiteboards - Cell structure & specialised cells - Diffusion - Photosynthesis - Distribution - Enzymes - Respiration."— Presentation transcript:

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

2  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 ? a. cytoplasm b. cell wall c. chloroplast d. cell membrane

4 ? a. cell wall b. cell membrane c. vacuole d. cytoplasm

5 ? a. cytoplasm b. vacuole c. chloroplast d. nucleus

6 ? a. cytoplasm b. cell wall c. chloroplast d. cell membrane

7 ? a. cytoplasm b. vacuole c. chloroplast d. nucleus

8 ? a. cytoplasm b. vacuole c. chloroplast d. nucleus

9 a) Vacuole, nucleus and cell membrane b) Nucleus, cell wall, cytoplasm c) Nucleus, cell membrane, cytoplasm d) Cell membrane, chloroplast, cell wall Which structures are present in animal and plant cells?

10 a) Cell membrane, nucleus, cytoplasm b) Cell wall, cell membrane, vacuole c) Nucleus, chloroplast, cytoplasm d) Chloroplast, cell wall, vacuole Which structures are present only in plant cells?

11 a) Controls the cell b) Stores water and mineral ions c) Makes glucose by photosynthesis d) Controls what enters and leaves the cell What is the function of the chloroplast?

12 a) Supports and protects the cell b) Controls the cell c) Controls what enters and leaves the cell d) Metabolic reactions occur here What is the function of the cell membrane?

13 a) Supports and protects the cell b) Stores water and mineral ions c) Controls the cell d) Controls what enters and leaves the cell What is the function of the cell wall?

14 a) Stores water and mineral ions b) Metabolic reactions occur here c) Controls what enters and leaves the cell d) Supports the cell What is the function of the cytoplasm?

15 a) Supports and protects the cell b) Controls what enters and leaves the cell c) Controls the cell d) Stores water and mineral ions What is the function of the sap vacuole?

16 a) Supports and protects the cell b) Controls the cell c) Controls what enters and leaves the cell d) Metabolic reactions occur here What is the function of the nucleus?

17 a) Red blood cell and root hair cell b) Ciliated cell and xylem vessel c) Liver cell and palisade cell d) Muscle cell and mesophyll cell The two cells illustrated below show a typical:

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

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

20 Question 17 a)Name the cell b)Describe an adaptation c)Explain an adaptation

21  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 a)Name the cell b)Describe an adaptation c)Explain an adaptation

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

24 Question 19 a)Name the cell b)Describe an adaptation c)Explain an adaptation

25  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 a)Name the cell b)Describe an adaptation c)Explain an adaptation

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

28

29 Q22) Name the structures Boardworks slide removed for copyright reasons

30  Describe and explain what the graph shows [4] Rate of reaction Temp ( o C) 37

31 Q24) Match the reactant Boardworks slide removed for copyright reasons

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

33 a) Washing powders b) Slimming foods c) Producing glucose syrups d) Pre-digesting baby foods

34 a) Washing powders b) Slimming foods c) Producing glucose syrups d) Pre-digesting baby foods

35 a) Washing powders b) Slimming foods c) Producing glucose syrups d) Pre-digesting baby foods

36 a) Can be re-used therefore reduced long-term costs b) Allow reactions to occur at lower temperatures, saving energy c) Denature at high temperatures d) Allow reactions to occur at lower temperatures, saving money

37 - Gas / liquid - High to low concentration - Random movement

38 1. Your DNA is separated into strands called ___________ 2. Small sections of a chromosome are called _____ 3. Genes code for a particular characteristic 4. They do this by containing a code of _____ for a SPECIFIC sequence of _____ _____ 5. The sequence of amino acids codes for a SPECIFIC _______ to be made 6. E.g. a protein for blue eyes a) b) c) d) e)

39

40  b) If you want to investigate how distance affects photosynthesis, how could you prevent the impact of heat from the lamp?

41 a) f) e) d) c) b)

42 Concentration of Carbon Dioxide Rate of Photosynthesis Stage 1 Stage 2

43 Key words: tape measure, transect, quadrat, regular intervals, count

44  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 TimepH

46 A B

47  Heart rate increases as exercise occurs ◦ This is because muscle cells require more oxygen and glucose, and to get rid of CO 2. 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 A B

49  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  Aerobic requires oxygen  Aerobic releases more energy  Aerobic produces CO 2 and H 2 O  Anaerobic produces lactic acid  Both take place in mitochondria of cells


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