Lesson 4.1.3.3
4.1.3.3 Active transport Quiz: AQA Combined Science, Unit 1
20 questions
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Lesson 4.1.3.3, Active transport: 20 multiple choice questions for the AQA GCSE Combined Science (8464), Unit 1: Cell biology, written with Revision Ninja.
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The 20 questions
-
What does active transport move substances against?
- Surface area
- Water potential
- Concentration gradient
- Osmotic pressure
-
What type of energy is required for active transport?
- Energy from respiration
- Thermal energy
- Kinetic energy
- Light energy
-
From where are mineral ions absorbed into plant root hairs?
- Pure distilled water
- Very dilute soil
- Concentrated fertiliser
- Plant phloem
-
Why do plants require mineral ions absorbed by root hairs?
- To digest starch
- For photosynthesis only
- To produce oxygen
- For healthy growth
-
By which process are sugar molecules absorbed from the gut into the blood?
- Simple diffusion
- Filtration in organs
- Osmosis of water
- Active transport
-
Which direction does active transport move sugar in the gut?
- Along concentration gradient
- By passive diffusion
- Against concentration gradient
- Down concentration gradient
-
Which process requires energy from respiration?
- Osmosis
- Diffusion
- Simple filtration
- Active transport
-
Which process moves water across a cell membrane?
- Photosynthesis
- Osmosis
- Respiration
- Active transport only
-
Soil ion concentration is much lower than in a root hair cell, yet ions still enter. Which process?
- Osmosis of water
- Active transport
- Filtration in organs
- Passive diffusion
-
How does active transport differ from diffusion?
- Does not need respiration
- Uses energy against gradient
- Only transports water molecules
- Occurs down a gradient
-
Why would a root hair cell fail to absorb minerals without oxygen?
- Cell wall breaks down
- Diffusion rate increases
- No respiration for energy
- Osmosis stops completely
-
Which process is passive?
- Respiration
- Diffusion
- Active transport
- Ion pumping
-
What process do cells use to absorb substances against a concentration gradient?
- Osmosis
- Diffusion
- Transpiration
- Active transport
-
Which process allows root hair cells to absorb mineral ions from dilute soil solutions?
- Diffusion
- Evaporation
- Active transport
- Osmosis
-
Sugar enters the blood from the gut against a concentration gradient. Which body system is involved?
- Nervous system
- Endocrine system
- Skeletal system
- Digestive system
-
Which cellular transport process requires energy from respiration?
- Osmosis
- Diffusion
- Filtration
- Active transport
-
What happens to active transport when a cell lacks oxygen for respiration?
- It stops completely
- It reverses direction
- It speeds up
- It becomes diffusion
-
Which factor is most essential for the functioning of active transport?
- Osmotic pressure
- Respiration
- Light intensity
- Stomatal closure
-
How do mineral ions move into root hair cells against their concentration gradient?
- Simple diffusion
- Active transport
- Passive osmosis
- Transpiration pull
-
What allows root hair cells to maintain a higher ion concentration than the surrounding soil?
- Cell division
- Active transport
- Osmosis
- Diffusion
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