1. Centro:
Nombre: Fecha: Curso:
1. Completethese definitions.
………………….. organisms are composed of two or more cells.
…………………. organisms are composed of a single cell.
2. Humansare… organisms.
a) multicellular
b) unicellular
c) nervecells
3. Match the columns.
Cell · · A set of one typeof cells.
Organ · · Several organs that perform a
function together.
Tissue · · A set of tissues that are grouped
together.
System · · The first level or organisation.
4. Write trueor false. Then, correct them.
2. An organ is a set of tissues that are grouped together.
A system is a set of one typeof cells which perform the same
function.
A cell is formed by several organsthat perform a function
together.
A tissue is a set of onetype of cells.
5. Completethese definitions.
………………..: The first levelor organisation.
………………..: A set of one typeof cells.
………………..: A set of tissues that are grouped together.
……………….. : Several organs that perform afunction together.
6. What is the differencebetween stimuli and response?
…………………………………………………………………………………………………….
…………………………………………………………………………………………………….
…………………………………………………………………………………………………….
…………………………………………………………………………………………………….
…………………………………………………………………………………………………….
7. How does a stimuli work?
a) Our receptor organs capturethe stimuliand send a message to
the other organs.
3. b) Our sensory organs capturethe stimuli and send a message to
the brain.
c) Our sensory organs capturethe stimuli and send a message to
the other organs.
8. What typeof stimulusare they? Completethese descriptions.
When our stomach is empty, and it tells the brain that we are
hungry is an ……………………. stimulus.
When our ears hear a loud noiseand the brain ordersus to turn
towardsthe sudden noiseis an ……………………. stimulus.
9. Write trueor false. Then, correct them.
A motor responseis the process in which the brain ordersthe
musclesto move.
When we stretch up our armsto catch a ball is a glandular
response.
A glandular responseisthe process in which organs producea
substance.
When we sweat is a motor response.
10. Write trueor false. Then, correct them.
Sense organs respond to a stimulusand send impulsesalong the
central nervoussystem.
4. Sensory nervescarry information from the central nervous
system and internalorgans to the sense organs.
Centralnervoussystem receives and interpretsthe information
and coordinatesa response.
11. Complete the text with the wordsbelow:
auditory nerve, centralnervoussystem, brain, ears, sense organs,
sensory nerve
The ………………………. are the ………………………. of hearing. They respond
to a sound (stimulus)and send impulsesalongthe ……………………….,
the ………………………., that carry that information to the ……………………….
………………………., the ………………………..
12. Match the columns.
Smell · · Skin
Taste · · Tongue
Touch · · Eyes
Sight · · Nasal cavity
Hearing · · Ears
13. Classify these words into the chart below.
cochlea, retina, sweet, temperature, pituitary gland, dermis, pupil,
small bones, bitter
SENSE OF SENSE OF SENSE OF SENSE OF SENSE OF
5. SMELL TASTE TOUCH SIGHT HEARING
14. Temperature, pressure, pain and textureare receptors of the sense
of … .
a) smell
b) taste
c) touch
15. Label the picture.
