University of San Agustin

SENIOR HIGH SCHOOL DEPARTMENT

General Luna Street, Iloilo City, Philippines, 5000
Tel. No. (+63-33) 337-4841 to 44

Name: Axen Momo Year and Section: STEM 12-E Date: 05-26-22

Activity 5: Transport in Plant

I. Objective:
1. To demonstrate water and mineral transport in plants

II. Introduction
Plants need water. The wilted leaves recover when water is added to the soil, which
means that water has been conducted upward into the leaves. You have also learnt that the
leaves for photosynthesis need water. Likewise, the food produced in the leaves has to be
transported to other parts of the plant including the stem, the roots flowers and fruits etc. All
this transportation is the function of conducting tissues. You will read about these aspects of
plant and animal life in this activity.

III. Materials Needed:

 Food coloring or powdered dyes; colors: red, green(control) and yellow

 sharp blade/cutter
 2 pcs. white rose (any white flowers) with thick stem
 4 containers/ mineral bottles( 1 extra container)

IV. Procedure

Water and Mineral Transport in Plants

1. Dissolve the dye in a container (transparent) filled with water. Estimate the water and
the dye as long as it is dissolved well.
2. Cut an estimated cm crosswise at the bottom stem of the first white rose. It must be cut
vertically as long as the stem is divided into 3 equal parts. But the height of the vertical
cut depends on the height of the container and the amount of dye solution inside.

Bottom Stem
 University of San Agustin
SENIOR HIGH SCHOOL DEPARTMENT
General Luna Street, Iloilo City, Philippines, 5000
Tel. No. (+63-33) 337-4841 to 44

3. Submerge immediately the stem with cut ends in the designated plastic container with
dye solution.
4. Do not cut the second rose like the first one instead make a slanting cut at the bottom
stem and submerge it in the green dye solution.
5. Let it stand for 4 hours or until 1 day as long as you observe changes on the color of
your white rose.

Setup

V. Documentations:
(documentation or pictures taken as proof of performing the activity properly; should have a
caption)

Prepare the three containers and filled them with water. Dissolve the dye in
each container. Prepare the cutter and get the other flower, cut the stem into
three equal parts. Submerge immediately the stem with cut ends in the plastic
container with dye solution. Get the other flower, make a slanting cut at the
bottom stem and submerge it in the green dye solution. Let those flowers stand
and observe the changes.
 University of San Agustin
SENIOR HIGH SCHOOL DEPARTMENT
General Luna Street, Iloilo City, Philippines, 5000
Tel. No. (+63-33) 337-4841 to 44

Water and Mineral Transport in Plants

White Flowers Before After

a. First White
Flower
(experimental:
3 colors)

b. Second White
Flower
(control: 1 color)
 University of San Agustin
SENIOR HIGH SCHOOL DEPARTMENT
General Luna Street, Iloilo City, Philippines, 5000
Tel. No. (+63-33) 337-4841 to 44

VI. Data and Observations:

White Flowers Before After

a. First White It was just a plain color white The flower absorbed the dyed
Flower petals. water then changed the color of
(experimental: petals. Now you can see three
3 colors) colors in the petals, thus other
petals remained white. Green is
the most observable color, next is
yellow then lastly the red as it was
the least color absorbed by the
flower.

b. Second White A plain color white petals. Since the flower was soak with
Flower only one color(green), then it only
(control: 1 absorbed the green color. Now
color) you can see the petals turns into
green color, although not all the
petals were turn into green.

VII. Analysis: Answers must be brief and concise with a maximum of 200 words only.

Water and Mineral Transport in Animals

1. What is the purpose of using the dye?

Answer: Food dye can change the color of flowers when you put it in the dyed water.
Putting a colored dye in the water containers allows us to observe capillary action at work.

2. Until what plant part did the dye solution reach? What does it signify?
Answer: Middle part of the petals. It implies that the flower absorbed the dyed water through
its stem.

3. How does transport in plants takes place?

Answer: When talking about transportation in plants we must discuss Xylem and Phloem.
Xylem tissue transports water and mineral salts from the roots to the other parts of the plant,
while phloem tissues transports carbohydrates, sucrose and amino acids from roots to the
leaves and other parts of the plant.
 University of San Agustin
SENIOR HIGH SCHOOL DEPARTMENT
General Luna Street, Iloilo City, Philippines, 5000
Tel. No. (+63-33) 337-4841 to 44

4. Describe xylem and phloem transport.

Answer: They are the vascular tissues of the plant and together form vascular bundles.
Phloem and xylem are complex tissues that perform transportation of food and water in a
plant. They work together as a unit to bring about effective transportation of food, nutrients,
minerals and water.

5. How do plants living in an arid environment cope with excessive water loss?
Answer: Some arid-climate plants are able to conserve water because of their reduced leaf
size. To survive in drought conditions, plants need to decrease transpiration to limit their
water loss. Some plants that live in dry conditions have evolved to have smaller leaves and
therefore fewer stomata.

6. Describe other environmental factors or conditions that may affect transpiration rates in
plants.
Answer: Light intensity, temperature, humidity, wind speed and water supply

VII. Conclusion/Summary:
(answers the objective of the activity and relate the result to personal life experience or
realizations)

As transpiration occurs in white flowers, the food coloring is pulled into the stem and up into
the leaves and petals. The flowers take up water through their stem and the water moves
from the stem to the flowers and leaves. As water evaporates from a plant, it is able to be
pull up more water through the plant’s stem. As it does so, it attracts more water to come
alongside it. This is called transpiration and cohesion. If plants have a transport system,
human also have the system that transmit foods, oxygen and nutrients to the body. And just
like flowers, we humans can also change our color for good. We’re beautiful from the past
but we can still upgrade ourselves to be more gorgeous and hot.

GRADE 12- GENERAL BIOLOGY

_____SCORING RUBRIC FOR LABORATORY ACTIVITY_____

CATEGORY 4 3 2 1 Scores
Drawings/ Clear, accurate Diagrams are Diagrams are Needed
Diagrams diagrams are included and are included and are diagrams are
included and labeled neatly labeled. missing OR are
make the and accurately. missing
experiment easier important
to understand. labels.
Diagrams are
labeled neatly and
accurately.
 University of San Agustin
SENIOR HIGH SCHOOL DEPARTMENT
General Luna Street, Iloilo City, Philippines, 5000
Tel. No. (+63-33) 337-4841 to 44

Conclusion Conclusion Conclusion Conclusion No conclusion is

describes the skills describes the describes the written.
learned, the information information
information learned and a learned.
learned and some possible
future applications application to a
to real life real life situation.
situations.
Materials All materials and Almost all Most of the Many materials
setup used in the materials and the materials and the are described
experiment are setup used in the setup used in the inaccurately
clearly and experiment are experiment are OR are not
accurately clearly and accurately described at
described. accurately described. all.
described.
Analysis The relationship The relationship The relationship The relationship
between the between the between the between the
variables is variables is variables is variables is not
discussed and discussed and discussed but no discussed.
trends/patterns trends/patterns patterns, trends
logically analyzed. logically or predictions are
Predictions are analyzed. made based on
made about what the data.
might happen if
part of the lab
were changed or
how the
experimental
design could be
changed.
Appearance/ Lab report is typed Lab report is Lab report is Lab report is
Organization and uses headings neatly neatly written or handwritten
and subheadings handwritten and typed, but and looks
to visually organize uses headings formatting does sloppy with
the material. and subheadings not help visually cross-outs,
to visually organize the multiple
organize the material. erasures and/or
material. tears and
creases.
Total /20