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887943
B1 - understanding organisms
Description
Biology Quiz on B1 - understanding organisms, created by Nicole Saville on 16/05/2014.
No tags specified
biology
b1
ocr gateway
gcse
biology
Quiz by
Nicole Saville
, updated more than 1 year ago
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Created by
Nicole Saville
over 10 years ago
178
7
0
Resource summary
Question 1
Question
What is fitness?
Answer
Being free from illness or disease
The ability to carry out physical activity
Being physically attractive
Question 2
Question
What causes heart disease?
Answer
A broken heart due to love
Restricted blood flow to the heart muscle
It's hereditary
Pathogens in the heart
Question 3
Question
What is the risk of getting heart disease increased by?
Answer
A high level of saturated fat in the diet
A build up of cholesterol in the arteries
Eating high levels of salt
Smoking
Lifting weights
Drinking too much water
Question 4
Question
What is the risk of getting heart disease increased by?
Answer
A high level of saturated fat in the diet
A build up of cholesterol in the arteries
Eating high levels of salt
Smoking
Lifting weights
Drinking too much water
Question 5
Question
What can you use to determine whether a person is over/underweight?
Answer
EAR (0.6 x body mass in kg)
BMI (mass in kg/ height in m squared)
Question 6
Question
What is a first-class protein?
Answer
Proteins from plants
Proteins that are genetically engineered to contain extra amino acids
Proteins from animal which contain all of the essential amino acids that can't be made by the human body
Question 7
Question
What is Plasmodium?
Answer
A protozoan which feeds on red blood cells
A type of insect found in the rain forest
A liquid found inside bones which thins the blood
Question 8
Question
A parasite is an organism that feeds on another living organism, causing it harm - true or false?
Answer
True
False
Question 9
Question
Mosquitoes are protozoans - true or false?
Answer
True
False
Question 10
Question
What is a pathogen?
Answer
A disease-causing organism
An organism produced by white blood cells which lock onto the surface of antigens
Part of a plant
Question 11
Question
What do antibiotics do?
Answer
Destroy pathogens
Slow down the pathogens development
Treat viruses
Question 12
Question
A placebo is a type of antiviral drug
Answer
True
False
Question 13
Question
What is a blind trial?
Answer
A drug trial in which the patient is blind folded
A drug trial in which the patient doesn't know whether they're receiving a real drug or a placebo
A drug trial in which neither the patient nor the doctor know whether they're receiving a drug or a pacebo
A trial with only placebos
Question 14
Question
What has excessive use of antibiotics resulted in?
Answer
Resistant forms of the bacteria becoming more common than non-resistant forms
The drugs tasting nicer
Doctors becoming addicted to them
Question 15
Question
Passive immunisation is long term
Answer
True
False
Question 16
Question
What does the cornea do?
Answer
contracts and relaxes to control how much light enters the eye
refracts light as it enters the eye
controls hormone release in the feet
sends nerve impulses from the fingers to the brain
Question 17
Question
What type of lens should be prescribed to someone who is short sighted?
Answer
concave
convex
complex
cornea
Question 18
Question
The gap between neurones is called a...
Answer
relay
nerve
synapse
iris
Question 19
Question
What is the reflex arc?
Answer
stimulus - receptor - sensory neurone - central nervous system - motor neurone - effector - response
receptor - response - sensory neurone - relay neurone - motor neurone - effector
stimulus - motor neurone - central nervous system - relay neurone - effector - response
receptor - sensory neurone - relay neurone - motor neurone - central nervous system - effector
Question 20
Question
Hypothermia is...
Answer
A very low temperature
A very high temperature
Maintaining a constant internal environment
Very low blood sugar levels
Question 21
Question
The hypothalamus...
Answer
Monitors body temperature
Is damaged by too much alcohol consumption
Is in the brain
Is in the chest
Controls insulin levels
Question 22
Question
Vasodilation is...
Answer
The widening of blood vessels
The narrowing of blood vessels
A reaction to being too hot
A way of controlling plant hormones
Triggered by the nervous and hormonal systems
A reaction to drug overdose
Question 23
Question
Type 1 diabetes is caused by the pancreas producing too much insulin
Answer
True
False
Question 24
Question
Type 2 diabetes can be controlled by diet
Answer
True
False
Question 25
Question
What does insulin do?
Answer
Converts excess glycogen to glucose for use
Converts excess glucose to glycogen to be stored in the liver
Makes food sweeter
Causes Type 2 diabetes
Question 26
Question
What are the effects of smoking?
Answer
cigarette smoke contains chemicals which stop the cilia moving
Increased risk of lung cancer
Causes diabetes
You will get fined by the police
People will stop being friends with you
Dust particulates irritate the epithelial lining
Dust particulates irritate the small intestine lining
Question 27
Question
Phototropism is a plants response to gravity
Answer
True
False
Question 28
Question
What do auxins do?
Answer
Increase the height and weight of a plant
Elongate cells on the shaded side of a plant to tilt it towards the light
Feed on plants
Question 29
Question
Plant roots are positively geotropic
Answer
True
False
Question 30
Question
What are the uses of plant hormones?
Answer
Selective weed killers
To increase root growth of plant cuttings
To make a plant sexually active
To delay or accelerate fruit ripening
To reverse the ageing process of plants, making them younger
To control seed dormancy
To replace farmers
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