Share National 5 Biology Unit 2 2.1-2.3
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What are the basic units of life?
systems
tissues
cells
organs
Which of the following is NOT a feature of red blood cells?
biconcave shape
no nucleus
has a cell wall
contain haemoglobin
Cells that can divide and differentiate into specialised cells are....
magic
stem cells
tissue cells
embryonic cells
What do hormones attach when the reach the target tissue?
its cell wall
cytoplasm
receptor phospholipids
receptor proteins
What does the nervous system consist of?
Brain and spinal cord
Sensory, inter and motor
Brain, spinal cord and nerves
all the nerves
What part of the brain controls balance and coordination?
cerebellum
medulla
cerebrum
What part of the brain controls heart rate and breathing rate?
cerebrum
medulla
cerebellum
The order of nerves along a reflex arc is....
inter - motor - sensory
motor - inter - sensory
sensory - inter - motor
sensory - motor - inter
What is the gap between neurones called?
sinuses
synapse
diffusion
reflex
What are hormones made of?
carbohydrate
fats
protein
sugar
Which of the following is NOT true about hormones?
they are a type of protein
they are chemical messengers
they are carried in the blood
they are fast acting
Where are the hormones insulin and glucagon produced?
testis
liver
brain
pancreas
In animals what is excess glucose stored as?
insulin
glycogen
glucagon
starch
What disease results from the body being unable to control blood glucose?
parkinsons
diabetes
respiratory disease
angina
How many sets of chromosomes do diploid cells contain?
3
2
1
4
Sex cells are...
haploid
triploid
diploid
quadroid
