AQA GCSE Biology Paper 1| Questions Answered 100% Correct| Rated A
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Course
AQA GCSE Biolog
Institution
AQA GCSE Biolog
What does diffusion result in? - ANSWER The net movement of particles from an area of
higher concentration to an area of lower concentration
Name two substances transported in and out of cells during gas exchange - ANSWER
Oxygen, Carbon Dioxide
What waster product diffuses into blood plasma? - ...
AQA GCSE Biology Paper 1| Questions
Answered 100% Correct| Rated A
What does diffusion result in? - ANSWER The net movement of particles from an area of
higher concentration to an area of lower concentration
Name two substances transported in and out of cells during gas exchange - ANSWER
Oxygen, Carbon Dioxide
What waster product diffuses into blood plasma? - ANSWER Urea
Which organ is urea excreted from? - ANSWER The kidney
Name three factors that affect diffusion - ANSWER Difference in concentration
(concentration gradient), Temperature, Surface area of membrane
How does water move across cell membranes? - ANSWER By osmosis
What is osmosis? - ANSWER Diffusion of water from a dilute solution to a concentrated solution
through a partially permeable membrane
What is active transport? - ANSWER The movement of substances from a more dilute solution
to a more concentrated solution
What's the role of active transport in plants? - ANSWER The absorption of mineral ions from
dilute solutions in soil via root hairs
What's the role of active transport in humans? - ANSWER Allows sugar molecules to move
from the gut into the blood
, What are the basic building blocks of all living organisms? - ANSWER Cells
What is a tissue? - ANSWER A group of cells with similar structure and function
What is an organ? - ANSWER An aggregation of tissues that perform a specific function
What is an organ system? - ANSWER Different organs working together
Name the parts of the digestive system - ANSWER Mouth salivary glands, stomach, liver, gall
bladder, small intestine, large intestine
Where are amylases produced? - ANSWER Salivary glands
What does amylase do? - ANSWER Breaks down starch into sugars
Where are proteases produced? - ANSWER Stomach, small intestine, pancreas
What do proteases do? - ANSWER Break down proteins into amino acids
Where are lipases produced? - ANSWER Break down fats into glycerol and fatty acids
What do lipases do? - ANSWER Break down lipids (fats) into glycerol and fatty acids
Where is bile produced? - ANSWER In the liver
Where is bile stored in the body? - ANSWER Gall bladder
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