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UNIT 1

WORKSHEET I (CONSOLIDATION)

A. Unicellular and prokaryotic: bacteria (Monera Kingdom)

Unicellular and eukaryotic: yeast (Fungi Kingdom)

Multicellular without tissues: algae (Protoctist Kingdom) and sponge (animal kingdom)

Multicellular with tissues but without organs: moss (Plant Kingdom)

Multicellular with organs but without systems: angiosperms (Plant Kingdom)

Multicellular with systems: amphibian, arthropod, mammal (Animal Kingdom)

B. A) Nutrition

B) Interaction

C) Reproduction

D) Interaction

E) Nutrition

F) Interaction

G) Reproduction

C.

Classification Made of … Level of organization

Unicellular living things One cell Colony

Multicellular living things Several cells

Tissues

Organs

Systems

WORKSHEET II (CONSOLIDATION)

A. A) Prokaryotic cell. 1. Cell wall, 2. Cytoplasm, 3. DNA, 4. Plasmatic membrane, 5.

Ribosome.

B) Eukaryotic animal cell. 1. Nucleus, 2. Cytoplasm, 3. Mitochondrion, 4. Plasmatic

membrane, 5. Ribosome, 6. Centrioles.

c) Eukaryotic plant cell. 1. Cell wall, 2. Nucleus, 3. Cytoplasm, 4. Plasmatic

membrane, 5. Mitochondrion, 6. Chloroplast, 7. Ribosomes.

B.

Prokaryotic Animal Eukaryotic Plant Eukaryotic

Cell wall X X Plasmatic membrane X X X

Cytoplasm X X X

Nucleus X X DNA X X X

Mitochondria X X

Chloroplasts X Centrioles X

Ribosomes X X X

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C. Organelles present in all cells: plasmatic membrane, cytoplasm, DNA and

ribosomes.

D. A = 2, B = 3, C = 1

WORKSHEET II (EXTENSION)

A. A) Santiago Ramón y Cajal

B) Anton Van Leeuwenhoek

C) Matthias Schleiden and Theodor Schwann

D) Robert Hooke

B. 1. Robert Hooke observed cork cells.

2. Anton Van Leeuwenhoek observed microorganisms that live in water.

3. Matthias Schleiden and Theodor Schwann defined the cell theory.

4. Santiago Ramón y Cajal, studied neurons and the nervous system.

UNIT 2

WORKSHEET I (CONSOLIDATION)

A. 1. Respiration

2. Excretion

3. Heterotrophic

4. Open circulatory system

B. 1 = F, 2 = T, 3 = F, 4 = T.

WORKSHEET II (CONSOLIDATION)

A) Mitochondrion and chloroplast

B) 1. Water and mineral salts, 2. Carbon dioxide, 3. Solar energy, 4. Carbohydrates, 5.

Oxygen, 6. Carbohydrates, 7. Carbon dioxide, 8. Oxygen, 9. Energy

C) Matter and energy.

WORKSHEET III (CONSOLIDATION)

A. 1 = a, 2 = c, 3 = b, 4 = d

B. A) Plants release oxygen from photosynthesis, CO2 from respiration and excess water,

(as vapour) through the stomata.

B) The transportation of substances in the plant takes place through the vessels which

run along the stem, the branches and the veins of the leaves.

C) The carbohydrates (organic nutrients) which are made in photosynthesis are mixed

with waterin the leaf and form the phloem sap.

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WORKSHEET IV (CONSOLIDATION)

A.

Animal Without a Digestive

System With a Gastrovascular

cavity With Digestive tract

Anchovy (anchoa)

X

Slug (babosa) X Sponge (esponja)

X

Rabbit (conejo) X

Garsshopper (saltamontes)

X

Jellyfish (medusa)

X

Elephant (elefante)

X

Frog (rana) X

Tapeworm (tenia)

X

B. 1. Mounth

2. Oesophgus

3. Stomach

4. Intestine

5. Liver

6. Anus

WORKSHEET V (CONSOLIDATION)

A. Fish: breathing through gills. Mosquito: breathing through tracheae. Parrot: breathing

through lungs. Earthworm: breathing through skin.

B.

Animals which live in water or in a very wet environments

Have a very thing skin Which allows dissolved oxygen to be absorbed

Gills Are groups of filaments Which fluids circulate through

Tracheae Are very thin tubes Which open up to the outside through spiracles

Lungs Are two spongy organs Made up of millions of minute cavities called alveoli

WORKSHEET VI (CONSOLIDATION)

A. A) Sponges and cnidaria do not need to have any parts of their bodies specialized in

transportation; almost all their cells are in contact with the environment (water) and

they exchanges substances directly with the outside world.

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B) In closed circulatory systems the circulating liquid flows inside the vessels. The

exchange of substances takes place through the thin walls of the thinnest vessels.

B.

Open circulatory system Closed circulatory system

Crab (cangrejo) Fly (mosca)

Earthworm (lombriz de tierra) Snake (serpiente) Horse (caballo) Octopus (pulpo)

WORKSHEET VII (EXTENSION)

A. The digestive system of birds has a crop which moistens and softens the food. In our

digestive system that function is carried out by glands.

We crush food with our teeth, but birds crush food with their gizzard.

Birds have a cloaca to eliminate waste, but humans have an anus.

B. Birds feed their young with food that they carry in their crop. When the food is soft

and moist they regurgitate it.