Download 2º ESO - yamuzanaturalscience

2º ESO. UNIT 2. NUTRITION OF ANIMALS.
VOCABULARY
Study the following vocabulary: writing and pronunciation:
WORD
MEANING
NUTRITION
HETEROTROPHIC
NUTRITION
AUTOTROPHIC
NUTRITION
DIGESTION
TOOTH / TEETH
INTRACELLULAR
/
EXTRACELLULAR
CIRCULATORY
SYSTEM
CLOSED / OPEN
HEART
BLOOD VESSELS
BREATH / BREATHE
LUNGS
EXCRETION
WASTE
URINE
SKIN
KIDNEY
BIOLOGY AND GEOLOGY DEPARTMENT
2º ESO. Unit 2. Nutrition of animals.
1
QUESTIONS
1. What are the different types of nutrition called?
2. What is the heterotrophic nutrition?:
___________________________________________________________________
___________________________________________________________________
___________________________________________________________________.
3. Give three examples of autotrophic organisms.
4. Give three examples of heterotrophic organisms.
5. Complete the following sentences: a) autotrophic nutrition is a process in
which organisms creates their ________ nutrients from _______________
and
from
________________,
and
also
from
__________________
substances and _______________ they take from the soil; b) heterotophic
nutrition is a process in which the organisms that __________________
synthesise their own ____________________ compounds take them from
other ________________ _____________________ or their remains.
6. Copy and match each system with its description:
SYSTEMS RELATED WITH THE
DESCRIPTION
NUTRITION PROCESS
a) Excretory system
1. Carries food to the cells and the
waste away from them
b) Circulatory system
2. This system takes O2 from the air
into the blood and CO2 from the blood
into the air.
c) Digestive system
3. Removes the waste substances
from the blood
d) Respiratory system
4. Breaks down the food molecules
into nutrients
7. Define in your own words the following terms: extracellular digestion,
intracellular digestion, chemical digestion and physical digestion.
BIOLOGY AND GEOLOGY DEPARTMENT
2º ESO. Unit 2. Nutrition of animals.
2
8. See you the draw, colour the digestive system and complete it with the
following words: intestine / annus / crop / stomach / beak / gizzard /
esophagus.
9. The image shows the sketch of an amoeba ingesting some food; a) Draw
an arrow to indicate the path of the food; b) complete the sketch; c) Is the
amoeba an unicellular or pluricellular animal? What kind of digestion is
related to an amoeba?
BIOLOGY AND GEOLOGY DEPARTMENT
2º ESO. Unit 2. Nutrition of animals.
3
10. What are the functions of the circulatory system?
11. Put a tick in the correct option in each one of the following sentences:
a) The heart takes blood from: ⃞ the arteries; ⃞ the veins; ⃞ the ventricles.
b) Blood goes out of the heart through: ⃞the veins; ⃞ the arteries; ⃞the
auricles.
c) The human heart has: ⃞ one auricle and one ventricle; ⃞ two auricles
and two ventricles.
d) The cavity that expels blood out of the heart is: ⃞ the ventricle; ⃞ the
auricle; ⃞ the blood vessel.
12. Put the following names in the correct column:
OCTOPUS / HORSES / DOLPHINS / BEATLES / SPIDERS / SNAILS /
FISH / FROGS / BEES / BIRDS / CATS / ANTS.
OPEN CIRCULATION
CLOSED CIRCULATION
13. What is the function of cellular respiration? What substances absorb and
what substances expel the cell during the cellular respiration? What kind
of gas goes in and out of the lungs?
14. Match each animal with a kind of respiration: rabbit / shark / bee / donkey
/ earthworm / frog / swallow / sponge. And: diffusion / cutaneous
respiration / tracheal / branchial / pulmonary respiration.
15. Read and translate:
BIOLOGY AND GEOLOGY DEPARTMENT
2º ESO. Unit 2. Nutrition of animals.
4
16. Label the diagram:
BIOLOGY AND GEOLOGY DEPARTMENT
2º ESO. Unit 2. Nutrition of animals.
5
17. Complete the description of respiration. Use the words from exercise 16.
“ When we inhale, air travels down the ______________ and enters the
_______________. When it reaches the tiny bags called __________________,
the __________________ from the air passes into the blood. This transports
the oxygen to each ________________ in the body. In the cells, the oxygen is
used to break down _______________ so that _____________ for growth and
movement is released. ______________________ respiration also releases
_____________________ as a waste product. This is taken back to the lungs
by the blood and removed from the body during __________________
respiration”.
18. Draw and label the elements of the urinary system.
19. One student from 2nd year ESO included the following sentence in an
exercise about excretion: “Through the anus, the defecation process, we
excrete non-digested food that is not used during digestion.” What
serious error is made in this answer?
20. Besides the excretory function, what other functions does the elimination
of sweat serve?
21. Match each term with its definition:
Artery
Blood vessel that carries blood to the
heart
Vein
Organ from the circulatory system that
circulates blood
Capillary
A small blood vessel that allows the
interchange of substances with cells
Atrium
Ventricle
Cavity of the heart that receives blood
Blood vessels that carry blood from
the heart
Heart
Cavity of the heart that expels blood
BIOLOGY AND GEOLOGY DEPARTMENT
2º ESO. Unit 2. Nutrition of animals.
6