2 votes, 5 avg 0 AQA Biology (9201) Question Count : 30 Duration :45 minutes Hello . TIME UP!!! Try Again AQA Biology (9201) 30 Different Questions Every time 1 / 30 People must be vaccinated with a new vaccine each year to prevent infection from influenza. Explain why a new vaccine is used each year. Check 2 / 30 Nucleus Vacuole Cytoplasm Cell wall 3 / 30 Check 4 / 30 Which parts of the cell release energy during respiration? Chloroplasts Mitochondria Ribosomes 5 / 30 Body temperature is one condition that is controlled by homeostasis in humans. box Choose two other internal conditions that are controlled in the body blood glucose / sugar none of the above ion content water content 6 / 30 Yeast cells can respire anaerobically. 0 1 . 3 Complete the word equation for anaerobic respiration in yeast. Choose the answer (ethanol, glycerol, starch, urea.) glucose → ………….. + carbon dioxide glycerol urea ethanol starch 7 / 30 Mendel published his results in 1866, but his ideas were ignored until the early 1900s. Suggest one reason why people did not accept Mendel’s ideas in 1866. Check 8 / 30 The brain monitors core body temperature. Name the centre in the brain that monitors core body temperature. Check 9 / 30 This question is about white blood cells and pathogens. White blood cells have cell membranes. Describe the function of the cell membrane. Check 10 / 30 A leaf has many pores called stomata. Water vapour is lost from a plant by diffusion through the stomata. At what temperature would most water vapour be lost from a leaf? 35 degree celsius 20 degree celsius 25 degree celsius 30 degree celsius 11 / 30 Ebola is a disease caused by a viral pathogen. The Ebola virus attaches to the cell membranes of some body cells. The Ebola virus can spread very quickly by direct contact with infected patients or their body fluids. In countries where there are outbreaks of Ebola, people are advised to wash their hands regularly. Suggest how regular hand washing reduces the spread of the Ebola virus Check 12 / 30 A B 13 / 30 Choose three ways white blood cells defend the body against pathogens. produce antibodies ingest pathogen or phagocytosis produce antitoxins none of the above 14 / 30 What does heterozygous mean? Check 15 / 30 Between which two groups is there the largest increase in death rate? box Use Table 1. (13 – 14) to (15 – 16) (7 – 8) to (9 – 10) (9 – 10) to (11 – 12) (11 – 12) to (13 – 14) 16 / 30 Ebola is a disease caused by a viral pathogen. The Ebola virus attaches to the cell membranes of some body cells. The Ebola virus can spread very quickly by direct contact with infected patients or their body fluids Choose one other way to reduce the spread of the Ebola virus. use of antiviral drugs isolate infected people bury the dead as soon as possible None of the above wear protective clothing when dealing with the dead / patients 17 / 30 Name a technique which could be used to quickly produce large numbers of the genetically engineered plants Check 18 / 30 Digestive enzymes break down insoluble molecules into smaller, soluble molecules. Name two insoluble molecules digested by enzymes. Choose the answers (amino acid, fat, fatty acid, glucose, protein) protein and amino acid protein and fat fat and protein fat and fatty acid 19 / 30 Tardigrades can survive in extremely cold and dry conditions. In extreme conditions, tardigrades have the following adaptations: 1. Produce a waxy layer to cover their body surface. 2. Curl up into a tiny ball. 3. Are light enough to be carried by the wind. Describe how each adaptation helps the tardigrade to survive. You should give a different reason for each adaptation. Adaptation 1 Adaptation 2 Adaptation 3 Check 20 / 30 Which specimen in Table 1 would be visible without a microscope? Check 21 / 30 A leaf is a plant organ. Name two other plant organs. Check 22 / 30 Owls are large birds. Owls eat mice and small birds. Which food chain is the most efficient at transferring energy from plants to owls? plants → caterpillars → mice→ owl plants → mice → owl plants → insects → spiders → small birds→ owl plants → caterpillars → small birds→ owl 23 / 30 Metabolism is the name given to all chemical reactions in the body. Name the chemical reaction in the body that releases energy Check 24 / 30 Check 25 / 30 B A 26 / 30 Which specimen in Table 1 would only be visible with an electron microscope? Check 27 / 30 The size of the stomata can be controlled. What parts of the leaf control the size of the stomata? Phloem cells Palisade cells Xylem cells guard cells 28 / 30 cow = 2 sectors, & sheep = 17 sectors cow = 9 sectors, & sheep = 9 sectors cow = 17 sectors, & sheep = 2 sectors 29 / 30 Yeast can also respire aerobically. Complete the sentence to give one way in which aerobic respiration is different from anaerobic respiration Choose the answer (carbon, energy, oxygen, glucose) Aerobic respiration releases more ………………………than anaerobic respiration. glucose energy carbon oxygen 30 / 30 What is the optimum pH for pectinase? 3.8 4 4.8 3 NameEmailPhone NumberCountry Your score is LinkedIn Facebook Twitter 0% Restart quiz Send feedback
AQA Biology (9201) Question Count : 30
Duration :45 minutes
Hello .
TIME UP!!! Try Again
AQA Biology (9201)
30 Different Questions Every time
1 / 30
People must be vaccinated with a new vaccine each year to prevent infection from influenza. Explain why a new vaccine is used each year.
2 / 30
3 / 30
4 / 30
Which parts of the cell release energy during respiration?
5 / 30
Body temperature is one condition that is controlled by homeostasis in humans. box Choose two other internal conditions that are controlled in the body
6 / 30
Yeast cells can respire anaerobically. 0 1 . 3 Complete the word equation for anaerobic respiration in yeast. Choose the answer (ethanol, glycerol, starch, urea.)
glucose → ………….. + carbon dioxide
7 / 30
Mendel published his results in 1866, but his ideas were ignored until the early 1900s. Suggest one reason why people did not accept Mendel’s ideas in 1866.
8 / 30
The brain monitors core body temperature. Name the centre in the brain that monitors core body temperature.
9 / 30
This question is about white blood cells and pathogens. White blood cells have cell membranes. Describe the function of the cell membrane.
10 / 30
A leaf has many pores called stomata. Water vapour is lost from a plant by diffusion through the stomata. At what temperature would most water vapour be lost from a leaf?
11 / 30
Ebola is a disease caused by a viral pathogen. The Ebola virus attaches to the cell membranes of some body cells. The Ebola virus can spread very quickly by direct contact with infected patients or their body fluids. In countries where there are outbreaks of Ebola, people are advised to wash their hands regularly. Suggest how regular hand washing reduces the spread of the Ebola virus
12 / 30
13 / 30
Choose three ways white blood cells defend the body against pathogens.
14 / 30
What does heterozygous mean?
15 / 30
Between which two groups is there the largest increase in death rate? box Use Table 1.
16 / 30
Ebola is a disease caused by a viral pathogen. The Ebola virus attaches to the cell membranes of some body cells. The Ebola virus can spread very quickly by direct contact with infected patients or their body fluids
Choose one other way to reduce the spread of the Ebola virus.
17 / 30
Name a technique which could be used to quickly produce large numbers of the genetically engineered plants
18 / 30
Digestive enzymes break down insoluble molecules into smaller, soluble molecules. Name two insoluble molecules digested by enzymes. Choose the answers (amino acid, fat, fatty acid, glucose, protein)
19 / 30
Tardigrades can survive in extremely cold and dry conditions. In extreme conditions, tardigrades have the following adaptations: 1. Produce a waxy layer to cover their body surface. 2. Curl up into a tiny ball. 3. Are light enough to be carried by the wind. Describe how each adaptation helps the tardigrade to survive. You should give a different reason for each adaptation. Adaptation 1 Adaptation 2 Adaptation 3
20 / 30
Which specimen in Table 1 would be visible without a microscope?
21 / 30
A leaf is a plant organ. Name two other plant organs.
22 / 30
Owls are large birds. Owls eat mice and small birds. Which food chain is the most efficient at transferring energy from plants to owls?
23 / 30
Metabolism is the name given to all chemical reactions in the body.
Name the chemical reaction in the body that releases energy
24 / 30
25 / 30
26 / 30
Which specimen in Table 1 would only be visible with an electron microscope?
27 / 30
The size of the stomata can be controlled. What parts of the leaf control the size of the stomata?
28 / 30
29 / 30
Yeast can also respire aerobically. Complete the sentence to give one way in which aerobic respiration is different from anaerobic respiration
Choose the answer (carbon, energy, oxygen, glucose)
Aerobic respiration releases more ………………………than anaerobic respiration.
30 / 30
What is the optimum pH for pectinase?
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1 votes, 5 avg 4 AQA Chemistry (9202) Question Count : 30 Duration :45 minutes Hello . TIME UP!!! Try Again AQA Chemistry (9202) 30 Different Questions Every time 1 / 30 17% 7% 70% 10% 2 / 30 Give the reason why hydrogen is formed at the negative electrode instead of sodium Check 3 / 30 Explain the results for sodium carbonate. Use data from Table 1 in your answer Check 4 / 30 The elements in the periodic table are arranged in the order of increasing ……..? neutron number Atomic number mass number 5 / 30 When carbon dioxide reacts with limewater it produces calcium carbonate and one other product. choose the formula of the missing product. Ca(OH)2 + CO2 → CaCO3 +……. O2 H2O HO 6 / 30 Name the other product formed by the electrolysis of sodium chloride solution Check 7 / 30 Calculate the value of X in Table 1. 40 (s) 30 (s) 43 (s) 34 (s) 8 / 30 Hydrogen gas forms hydrogen ions at the negative electrode in a fuel cell. Complete the half equation for this reaction. H2 → ……… + …….. e– H2 → 2H+ + 3e– H2 → 3H+ + 2e– H2 → 2H+ + 2e– 9 / 30 What happens to the limewater when the gas is bubbled through? Turns yellow Turns white Turns red Turns blue 10 / 30 Dodecane (C12H26) can be cracked into heptane (C7H16) and two different alkenes. Complete the equation for this reaction. C12H26 → C7H16 + ……..+ ……… C12H26 → C7H16 +C2H8 + C3H8 C12H26 → C7H16 +C2H8 + C9H8 C12H26 → C7H16 +C2H4 + C3H6 11 / 30 Which statement is correct for elements with the same number of outer shell electrons in their atoms? They have the same number of protons in their atoms. They burn with the same coloured flame. They have similar boiling points They have similar chemical properties. 12 / 30 Which type of chemical is used as a catalyst in ester reaction? Check 13 / 30 Suggest why heptane (C7H16) is a better fuel than dodecane (C12H26). Check 14 / 30 why an atom of sodium has no overall charge same number of protons and electrons number of protons more than electrons No protons and No electrons 15 / 30 What is the maximum size of a nanoparticle? 100 nm 1 nm 10 nm 1000 nm 16 / 30 Which of the following represents a nitrogen atom with 8 neutrons? 14 7N 16 8N 14 8N 15 7N 17 / 30 What is the role of the iron in the reactor in Figure 5? Check 18 / 30 Give the symbols of the ions in potassium chloride. K+ and Cl+ K and Cl K+ and Cl– K– and Cl– 19 / 30 Check 20 / 30 Which is the displayed structure of ethanoic acid? C B A 21 / 30 Give the reason why solid potassium chloride does not conduct electricity. Check 22 / 30 Give one use of alkenes. Check 23 / 30 What is the centre of the atom called? Check 24 / 30 It has stronger covalent bonds It has weaker intermolecular forces It has stronger intermolecular forces It has weaker covalent bonds 25 / 30 Check 26 / 30 A student investigates the reactivity of four metals, A box , B, C and D. This is the method the student uses. 1) Add a piece of metal A to some cold water and another piece to some dilute hydrochloric acid. 2) Observe the rate of bubbling. 3) Repeat steps 1 and 2 with metals B, C and D. The student wants to ensure the investigation is a fair test. select two variables the student should control. same concentration of acid same volume of acid not same temperature not same volume of water 27 / 30 90 cm3 of gas was collected in 1 minute. Calculate the average rate of reaction in cm3/s. 1.5 cm3/s 2.5 cm3/s 2 cm3/s 1 cm3/s 28 / 30 Magnesium is often mixed with other metals to produce a more useful material. What are mixtures of metals called? Tick one box. Molecules Compounds Alloys Polymers 29 / 30 This question is about crude oil and substances found in it. Complete the sentence. Choose the answer from the box.(base, mixture, non-metal, polymer) Crude oil is a…………. . mixture base polymer non-metal 30 / 30 Potassium chloride (KCl) is an ionic compound. Potassium reacts with chlorine (Cl2) to produce potassium chloride. Complete the equation for the reaction. Balance the equation. ………. +…………..→ ………. KCl 2K + Cl2 → 2KCl 4K + Cl2 → 2KCl 3K + Cl → 2KCl 3K + Cl2 → 2KCl NameEmailPhone NumberCountry Your score is LinkedIn Facebook Twitter 0% Restart quiz Send feedback
AQA Chemistry (9202) Question Count : 30
AQA Chemistry (9202)
Give the reason why hydrogen is formed at the negative electrode instead of sodium
Explain the results for sodium carbonate. Use data from Table 1 in your answer
The elements in the periodic table are arranged in the order of increasing ……..?
When carbon dioxide reacts with limewater it produces calcium carbonate and one other product. choose the formula of the missing product.
Ca(OH)2 + CO2 → CaCO3 +…….
Name the other product formed by the electrolysis of sodium chloride solution
Calculate the value of X in Table 1.
Hydrogen gas forms hydrogen ions at the negative electrode in a fuel cell. Complete the half equation for this reaction. H2 → ……… + …….. e–
What happens to the limewater when the gas is bubbled through?
Dodecane (C12H26) can be cracked into heptane (C7H16) and two different alkenes. Complete the equation for this reaction. C12H26 → C7H16 + ……..+ ………
Which statement is correct for elements with the same number of outer shell electrons in their atoms?
Which type of chemical is used as a catalyst in ester reaction?
Suggest why heptane (C7H16) is a better fuel than dodecane (C12H26).
why an atom of sodium has no overall charge
What is the maximum size of a nanoparticle?
Which of the following represents a nitrogen atom with 8 neutrons?
What is the role of the iron in the reactor in Figure 5?
Give the symbols of the ions in potassium chloride.
Which is the displayed structure of ethanoic acid?
Give the reason why solid potassium chloride does not conduct electricity.
Give one use of alkenes.
What is the centre of the atom called?
A student investigates the reactivity of four metals, A box , B, C and D. This is the method the student uses. 1) Add a piece of metal A to some cold water and another piece to some dilute hydrochloric acid. 2) Observe the rate of bubbling. 3) Repeat steps 1 and 2 with metals B, C and D. The student wants to ensure the investigation is a fair test. select two variables the student should control.
90 cm3 of gas was collected in 1 minute. Calculate the average rate of reaction in cm3/s.
Magnesium is often mixed with other metals to produce a more useful material. What are mixtures of metals called? Tick one box.
This question is about crude oil and substances found in it. Complete the sentence. Choose the answer from the box.(base, mixture, non-metal, polymer) Crude oil is a…………. .
Potassium chloride (KCl) is an ionic compound. Potassium reacts with chlorine (Cl2) to produce potassium chloride. Complete the equation for the reaction. Balance the equation.
………. +…………..→ ………. KCl
1 votes, 5 avg 1 AQA Physics (9203) Question Count : 30 Duration :45 minutes Hello . TIME UP!!! Try Again AQA Physics (9203) 30 Different Questions Every time 1 / 30 Choose Two advantage of using LEDs rather than a filament lamp. LED uses more current High energy wasted LED more efficient for the same brightness 2 / 30 The Earth orbits a star called the Sun Why is a main sequence star stable? no forces in the star the forces in the star are not balanced the forces in the star are balanced 3 / 30 Which of the following describes the motion of the student between 100 seconds and 150 seconds? Slowing down Speeding up Constant acceleration Stationary 4 / 30 The sensors in car A emit and detect radio waves. The radio waves have a frequency of 7.7 × 1010 Hz. The speed of radio waves is 3.0 × 108 m/s. Calculate the wavelength of the radio waves. 39 m 40 m 0.0039 m 3.0039 m 5 / 30 Complete the sentences to explain the method of energy transfer shown in Figure 5 The temperature of the air above the candle……………….. increases decreases stays the same 6 / 30 What is ultrasound? sound waves with a frequency above 20 000 Hz sound waves with a frequency below 20 000 Hz 7 / 30 Determine the time for which the horse was travelling at a constant velocity. Time = …….seconds 35 seconds 5 seconds 25 seconds 55 seconds 8 / 30 When the person uses the paddle, the forces on the paddle create moments. What is meant by the moment of a force? Check 9 / 30 Saturn has a smaller moon called Methone which is not shown on Figure 2. The distance between Methone and the centre of Saturn is 200 000 km. Determine the speed of Methone. Speed = …………..km/s 1.8 km/s 19.8 km/s 13.8 km/s 15.8 km/s 10 / 30 The Milky Way is a……………… planet galaxy moon star 11 / 30 The two magnets are brought closer together. What happens to the size of the force on each magnet as they are moved closer together? The force stays the same. The force decreases. The force increases. 12 / 30 A C B D 13 / 30 The kayak moves forwards with an initial momentum of 48 kg m/s. The person uses the paddle for 18 s. The average resultant force on the kayak during this time is 12 N forwards. Calculate the final momentum of the kayak. Use the Physics Equations Sheet Final momentum =……… kg m/s 624 654 264 200 14 / 30 What equipment should the student have used to measure the angle of incidence? Ruler Protractor Compass Set-square 15 / 30 Complete the sentences to explain the method of energy transfer shown in Figure 5 The average distance between the particles……………………. decreases stays the same increases 16 / 30 B A 17 / 30 Determine the total distance travelled while the horse was accelerating Total distance = …………m 35.2 m 351.2 m 356 m 359.2 m 18 / 30 What is the total distance travelled by the student? Total distance = ………m 6000 m 60 m 6 m 600 m 19 / 30 Determine the speed of the student during the first 100 seconds. Speed = …………….m/s 51 m/s 5 m/s 15 m/s 1.5 m/s 20 / 30 Waves can be transverse or longitudinal. What is the name given to the time taken for one complete oscillation of a wave? Period Frequency Amplitude Wavelength 21 / 30 The component emits a range of electromagnetic radiation. What name is given to the electromagnetic radiation emitted at a particular temperature by the component? Ionising radiation Black-body radiation Cosmic radiation Nuclear radiation 22 / 30 The weight of the horse is 6.37 kN. Calculate the kinetic energy of the horse at point B. gravitational field strength = 9.8 N/kg Give your answer to 2 significant figures. Use the Physics Equations Sheet. Kinetic energy = …………….J E<sub>k</sub> = 15 000 J E<sub>k</sub> = 11 000 J E<sub>k</sub> = 1000 J 23 / 30 Most of the radiation emitted by the component is infrared radiation. Choose two changes to the infrared radiation emitted by the computer component as the temperature of the component increases frequency decreases wavelength increases frequency increases intensity increases 24 / 30 4.2 (m) 2.2 (m) 4 (m) 1(m) 25 / 30 A B 26 / 30 The refractive index of Perspex is 1.49 Calculate the critical angle of Perspex. 22ᵒ 42ᵒ 52ᵒ 62ᵒ 27 / 30 Complete the sentence. Choose the answer from below. The mass of the package added to the drone is the ……………………… variable. dependent categoric independent 28 / 30 Identify two control variables in this investigation. Hover time The mass of the dron The brightness of the “battery low” light The mass of the package The initial charge stored in the battery 29 / 30 Car A has a mass of 1200 kg and is travelling at a speed of 30 m/s. Calculate the force required to stop car A in 6.0 seconds. Use the Physics Equations Sheet. Give the unit. 3000 N 5000 N 2000 N 6000 N 30 / 30 The space probe is currently at the edge of our solar system. Scientists use a unit called the astronomical unit (AU) to measure the large distances in the solar system. 1 AU = 1.5 × 1011 m The signals that the space probe sends back to Earth travel at a speed of 3.0 × 108 m/s. The space probe is currently 120 AU from Earth. Calculate the time it takes for a signal from the space probe to reach Earth. Give your answer in hours. 20 hours 10 hours 17 hours 1 hours NameEmailPhone NumberCountry Your score is LinkedIn Facebook Twitter 0% Restart quiz Send feedback
AQA Physics (9203) Question Count : 30
AQA Physics (9203)
Choose Two advantage of using LEDs rather than a filament lamp.
The Earth orbits a star called the Sun
Why is a main sequence star stable?
Which of the following describes the motion of the student between 100 seconds and 150 seconds?
The sensors in car A emit and detect radio waves. The radio waves have a frequency of 7.7 × 1010 Hz. The speed of radio waves is 3.0 × 108 m/s. Calculate the wavelength of the radio waves.
Complete the sentences to explain the method of energy transfer shown in Figure 5
The temperature of the air above the candle………………..
What is ultrasound?
Determine the time for which the horse was travelling at a constant velocity.
Time = …….seconds
When the person uses the paddle, the forces on the paddle create moments. What is meant by the moment of a force?
Saturn has a smaller moon called Methone which is not shown on Figure 2. The distance between Methone and the centre of Saturn is 200 000 km. Determine the speed of Methone.
Speed = …………..km/s
The Milky Way is a………………
The two magnets are brought closer together. What happens to the size of the force on each magnet as they are moved closer together?
The kayak moves forwards with an initial momentum of 48 kg m/s. The person uses the paddle for 18 s. The average resultant force on the kayak during this time is 12 N forwards. Calculate the final momentum of the kayak. Use the Physics Equations Sheet
Final momentum =……… kg m/s
What equipment should the student have used to measure the angle of incidence?
The average distance between the particles…………………….
Determine the total distance travelled while the horse was accelerating
Total distance = …………m
What is the total distance travelled by the student?
Total distance = ………m
Determine the speed of the student during the first 100 seconds.
Speed = …………….m/s
Waves can be transverse or longitudinal.
What is the name given to the time taken for one complete oscillation of a wave?
The component emits a range of electromagnetic radiation. What name is given to the electromagnetic radiation emitted at a particular temperature by the component?
The weight of the horse is 6.37 kN. Calculate the kinetic energy of the horse at point B. gravitational field strength = 9.8 N/kg Give your answer to 2 significant figures. Use the Physics Equations Sheet.
Kinetic energy = …………….J
Most of the radiation emitted by the component is infrared radiation. Choose two changes to the infrared radiation emitted by the computer component as the temperature of the component increases
The refractive index of Perspex is 1.49 Calculate the critical angle of Perspex.
Complete the sentence. Choose the answer from below.
The mass of the package added to the drone is the ……………………… variable.
Identify two control variables in this investigation.
Car A has a mass of 1200 kg and is travelling at a speed of 30 m/s. Calculate the force required to stop car A in 6.0 seconds. Use the Physics Equations Sheet. Give the unit.
The space probe is currently at the edge of our solar system. Scientists use a unit called the astronomical unit (AU) to measure the large distances in the solar system. 1 AU = 1.5 × 1011 m The signals that the space probe sends back to Earth travel at a speed of 3.0 × 108 m/s. The space probe is currently 120 AU from Earth. Calculate the time it takes for a signal from the space probe to reach Earth. Give your answer in hours.
