REINFORCEMENT Structures and classification of plants Name: Date: Class: 1 Natural Science 5. Unit 1 PHOTOCOPIABLE MATERIAL 1 UNIT 1 Look for a plant with roots and a flower and draw it. Label the parts you know on your drawing. Then connect the organs you have identified with their function. 2 Use this key to classify the following plants. This organ keeps the plant upright and supports it. It also carries substances through vessels. This is the organ which captures sunlight and produces the nutrients the plant needs through photosynthesis. This is the reproductive organ. Does it have flowers? Are the seeds located inside the fruit? Does it have roots, leaves and a stem with vessels? Yes Yes Yes No No No This organ enables plants to take water and minerals from the soil. Angiosperm Gymnosperma Fern Moss a) b) c) d)
Transcript
REINFORCEMENT Structures and classification of plants
Name: Date: Class:
1
Natural Science 5. Unit 1 PHOTOCOPIABLE MATERIAL
1uniT
1 Look for a plant with roots and a flower and draw it. Label the parts you know on your drawing. Then connect the organs you have identified with their function.
2 Use this key to classify the following plants.
This organ keeps the plant upright and supports it. It also carries substances through vessels.
This is the organ which captures sunlight and produces the nutrients the plant needs through photosynthesis.
This is the reproductive organ.
Does it have flowers?
Are the seeds located inside the fruit? Does it have roots, leaves and a stem with vessels?
Yes Yes
Yes
No
No
No
This organ enables plants to take water and minerals from the soil.
Angiosperm Gymnosperma Fern Moss
a) b) c) d)
REINFORCEMENT Plant reproduction
Name: Date: Class:
Natural Science 5. Unit 1 PHOTOCOPIABLE MATERIAL
1uniT 2
1 Cut out the images and put them in order on a timeline. Write down an explanation of what each one represents.
1
Natural Science 5. Unit 1 PHOTOCOPIABLE MATERIAL
REINFORCEMENT Plant nutrition and environment
Name: Date: Class:
Look at the chart bellow. We can see the approximate variation in the quantity of carbon dioxide released in the air in a wood of beech trees.
1 When is the quantity of carbon dioxide at a maximum? And at a minimum?
2 What will it be like in atumn, higher or lower than in summer? Explain why.
3 Why do you think the quantity of carbon dioxide varies throughout the seasons?
4 There are also variations in the quantity of carbon dioxide released in the air during the day and at night. When will it be higher? Why?
3
winter summer winter summer
Seasonal variation
Qua
ntit
y of
car
bon
diox
ide
1uniT
PHOTOCOPIABLE MATERIALNatural Science 5. Unit 1
REVIEW
Name: Date: Class: 1uniT
a b
cd
1 Classify these plants by writing the letter in the corresponding circle.
2 Complete the following tables.
3 How is raw sap different from elaborated sap?
4 Which of these sentences is correct? Explain why and correct the wrong one.
PHOTOSYNTHESIS
Required substances
Released substances Produce
RESPIRATION
Required substances
Released substances Produce
a) Photosynthesis in plants takes place both during the day and at night.
b) Respiration occurs in plants both during the day and at night.
Plants with
flowers
Plants without
flowers
Angiosperms
Gymnosperms
With roots, stem, leaves and vessels
Without roots, stem, leaves and vessels
Natural Science 5. Unit 1
REVIEW
Name: Date: Class:
PHOTOCOPIABLE MATERIAL
1uniT
5 Look at these two processes and describe what is happening in each one. What is the main difference?
6 Connect each picture with the type of fragment from which the plant reproduces asexually.
7 Explain the following ways in which plants respond to their environment.
● Phototropism:
● Gravitropism:
a b
Stolon Tuber Bulb
EXTENSION
Nombre: Fecha: Curso:
Natural Science 5. Unit 1 PHOTOCOPIABLE MATERIAL
1uniT
1 Connect the three columns to show how plants solved their problems.
SOLUTION
Structures are covered with layers and protective substances which prevent the loss of water.
Through a protected organ (with a damp interior) which contains reproductive cells.
Stems become much more resistant.
Vessels are formed to transport substances throughout the plant.
STRUCTURES
Stem.
Xylem and phloem vessels.
Bark of stems.
Flower.
Problem 1
Problem 2
Problem 3
Problem 4
Problem 1. In some places vegetation is very dense and plants need to grow a lot to reach the light. How do they manage to stay upright?
Problem 3. Their leaves are far from the soil. How do they manage to take water?
Problem 2. Plants now live in a dry atmosphere, the air. How do they protect themselves from drying out?
Problem 4. A damp environment is necessary for fertilisation to take place. How can fertilisation occur in such a dry environment as the desert?
1 2 3 4
To understand the organisation of terrestrial plants we are going to look at the time when they first conquered land, about 400 million years ago. They had to solve many problems to survive out of the water.
