1. What is the eye an example of?
A sense organ.
2.Which type of neurone transmits a signal from a sense organ to the central nervous system?
Sensory.
3. Which type of neurone transmits a signal from the central nervous system to an effector such as a muscle?
Motor.
4. What is a synapse?
A junction between two neurones.
5. Which part of the nervous system is not involved in producing reflex actions?
Receptors.
viernes, 22 de mayo de 2009
NERVOUS SYSTEM AND THE SENSES
1. The part of the eye that focuses light is the:
b.lens.
2. The part of the eye that controls how much light enters the eye is the:
a.iris.
3. The part of the eye that converts light into electrical energy is the:
c.retina.
4. Both eyes are needed to judge the distance of an oncoming car:
true.
5.The semi-circular canals are the part of the ear used to detect the direction of sound.
false.
6. A reflex action means that your hand is being drawn away from a hot plate before the brain is aware that you are in pain.
true.
7. The part of the ear that converts vibrations in to electrical signals is the:
a.ear drum.
8. The part of the ear that carries electrical signals to the brain is the:
d.auditory nerve.
9. The part of the brain that controls balance and muscle coordination is the:
a.cerebellum.
10. The part of the brain that controls the breathing rate is the:
b.medulla.
b.lens.
2. The part of the eye that controls how much light enters the eye is the:
a.iris.
3. The part of the eye that converts light into electrical energy is the:
c.retina.
4. Both eyes are needed to judge the distance of an oncoming car:
true.
5.The semi-circular canals are the part of the ear used to detect the direction of sound.
false.
6. A reflex action means that your hand is being drawn away from a hot plate before the brain is aware that you are in pain.
true.
7. The part of the ear that converts vibrations in to electrical signals is the:
a.ear drum.
8. The part of the ear that carries electrical signals to the brain is the:
d.auditory nerve.
9. The part of the brain that controls balance and muscle coordination is the:
a.cerebellum.
10. The part of the brain that controls the breathing rate is the:
b.medulla.
viernes, 8 de mayo de 2009
EXAM UNIT 1(CORRECT)
1. Explica per què es considera la cèl·lula la unitat fonamental dels éssers vius.
Cells, like other living beings, are constantly active wich allows them to stay alive and produce descendants. They carry out the functions of nutrition, interaction and reproduction.
2. Escriu el nom dels orgànuls i de les parts de les cèl·lules eucariotes que es corresponen amb les funcions proposades
Digestió .......................................
Locomoció .......................................
Magatzem de nutrients .......................................
Fotosíntesi .......................................
Síntesi de proteïnes .......................................
Suport de la cèl·lula .......................................
3. Fes una llista dels aparells i sistemes que formen el cos humà. Quines són els tres funcions vitals dels éssers vius? Quins aparells i sistemes participen en cadascuna d'elles. ( contesta al full apart.)
aparells:digestiu,repiratori,excretor,reproductor,circulatori.
sistemes:endocrí,nerviós.
4. Relaciona els termes següents (escriu a la dreta de la segona columna què són):
Bacterium:organism
Heart:organ
Onion Epidermis:tissue
Red blood cell:cell
A cat:organism
Nervous system:apparatus
A potato plant:organism
5. Indica si són veritables (V) o falses (F) les afirmacions següents.
The bigger animals have bigger cells than the smaller animals. fals
There are no organisms made up of only one cell.
Bacteria have no nucleus. veritable
The shape of cells is very varied.
Vegetables are made up of procaryotic cells.
All eucaryotic cells have cell organelles.+false
Procaryotic cells have got a cytoplasm. false
We usually measure the length of a cell in centimetres.
6. Explain the most important differences between the two main kinds of cells:
Eucaryotic cells Procaryotic cells
Size:
Nucleus: Nucleus is not separated from
the rest cell.
Organelles:
Write down any other additional difference between them that it is worth mentioning.
Cells, like other living beings, are constantly active wich allows them to stay alive and produce descendants. They carry out the functions of nutrition, interaction and reproduction.
2. Escriu el nom dels orgànuls i de les parts de les cèl·lules eucariotes que es corresponen amb les funcions proposades
Digestió .......................................
Locomoció .......................................
Magatzem de nutrients .......................................
Fotosíntesi .......................................
Síntesi de proteïnes .......................................
Suport de la cèl·lula .......................................
3. Fes una llista dels aparells i sistemes que formen el cos humà. Quines són els tres funcions vitals dels éssers vius? Quins aparells i sistemes participen en cadascuna d'elles. ( contesta al full apart.)
aparells:digestiu,repiratori,excretor,reproductor,circulatori.
sistemes:endocrí,nerviós.
4. Relaciona els termes següents (escriu a la dreta de la segona columna què són):
Bacterium:organism
Heart:organ
Onion Epidermis:tissue
Red blood cell:cell
A cat:organism
Nervous system:apparatus
A potato plant:organism
5. Indica si són veritables (V) o falses (F) les afirmacions següents.
The bigger animals have bigger cells than the smaller animals. fals
There are no organisms made up of only one cell.
Bacteria have no nucleus. veritable
The shape of cells is very varied.
Vegetables are made up of procaryotic cells.
All eucaryotic cells have cell organelles.+false
Procaryotic cells have got a cytoplasm. false
We usually measure the length of a cell in centimetres.
6. Explain the most important differences between the two main kinds of cells:
Eucaryotic cells Procaryotic cells
Size:
Nucleus: Nucleus is not separated from
the rest cell.
Organelles:
Write down any other additional difference between them that it is worth mentioning.
8. Com es classifiquen els teixits del cos humà? Fes-ne un esquema o explica els quatre tipus bàsics de teixits i les seves diferents classes.
9. Label the
1.cellular membrane.
2.vesicles.
3.golgi apparatus.
4.
5.endoplamasmatic reticulum.
6."
7."
8."
9.nucleus.
10.ribosomes.
11.lysosomes.
12.
13.mitochondria.
14.centresome.
DIGESTION QUIX(ADVANCE)
1. Which statement about proteins is correct?
They are made from amino acids and are used for growth and repair.
2. RDA for protein is calculated using this equation: RDA in g = 0.75 × body mass in kg. What is the RDA for an 80 kg person?
60 g
3. BMI is calculated using this equation: BMI = mass in kg ÷ (height in m)2. What is the BMI an of 80 kg person who is 2 m tall?
20
4. A person with a BMI of 18 is likely to be:
Underweight.
5. Food passes along the gut by:
Waves of muscle contractions.
6. What do lipases digest?
Fats
7. Which statement about bile is correct?
The correct statement about bile is: It is made in the liver and stored in the gall bladder.
8. Which statement about bile is correct?
The correct statement about bile is: It is alkaline and emulsifies fats.
They are made from amino acids and are used for growth and repair.
2. RDA for protein is calculated using this equation: RDA in g = 0.75 × body mass in kg. What is the RDA for an 80 kg person?
60 g
3. BMI is calculated using this equation: BMI = mass in kg ÷ (height in m)2. What is the BMI an of 80 kg person who is 2 m tall?
20
4. A person with a BMI of 18 is likely to be:
Underweight.
5. Food passes along the gut by:
Waves of muscle contractions.
6. What do lipases digest?
Fats
7. Which statement about bile is correct?
The correct statement about bile is: It is made in the liver and stored in the gall bladder.
8. Which statement about bile is correct?
The correct statement about bile is: It is alkaline and emulsifies fats.
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