Topic to be assessed: Plant Tissues

Learning Objectives:

• Identify and give functions of various types of

meristematic tissues

• Give structural functional and locational differences

between various types of simple permanent tissue –

Parenchyma, Sclerenchyma and Collenchyma

• Explain structural and functional differences of

various types of complex permanent tissues – Xylem

and Phloem

Task:1- QUIZ

For Learning outcome/outcomes: Give structural functional and locational differences between various types of simple permanent tissue – Parenchyma, Sclerenchyma and Collenchyma Task: Distribute the quiz sheets (as attached) to the students and

give them 10 minutes to solve the quiz and mark the answer in the

answer sheet.

Time span: 10 minutes

c.w. / h.w Class work

Resources

required

Quiz and answer sheets for all the learners

Activities for Formative Assessment Class IX Biology

Chapter: TISSUES

Assessme

nt rubric

and its

criterion

( ½ mark for each correct answer, no marks to be awarded

for incorrect answer)

Remedial measures:

Indicators Remedial strategy

>75% Give home work for those who do not pass

50-74 % Parallel assignment for those who do not

pass

26-49 % Remedial teaching for those who do not

pass

<25 % Re teach the entire class

QUIZ for Simple plant tissues

1. Which type of permanent tissue do these contain to store food?

a. Parenchyma

b. sclerenchyma

c. collenchyma

d. meristematic cells

2. Which substance is responsible for thickening of sclerenchyma walls?

a. Cutin b. Suberin c. Pectin d. Lignin

3. Which of the following cell type is found in the ground tissue ?

a. vessel elements and trachieds b. Vascular cambium c. Primary xylem d. Parenchyma and collenchyma

4.The lotus plant is able to float on the surface of water. The tissue that

provides buoyancy to the plant to keep it afloat is :

a. Pericycle

b. Collenchyma

c. Aerenchyma

d. Sclerenchyma

5.The tissue that provides hardness to the seed of mango fruit is :

a. Cambium

b. Hypodermis

c. Sclereid

d. Parenchyma

6.The cells of the cork tissue contain a chemical that makes them impervious

to water and gases. This chemical is :

a. Pectin

b. Hemicellulose

c. Lignin

d. suberin

7.Vineeta drew a labeled diagram of section of a stem and labeled an area

called pith. This region is made up of :

a. Parenchyma

b. sclerenchyma

c. collenchyma

d. meristematic cells

8.Which of the following plant parts would not have a cuticle covering the

epidermis ?

a. Flowers

b. Stem

c. Root

d. Leaves

9. Which of the following tissues is incorrectly matched with its

characteristics?

a. collenchyma-uniformly thick-walled supportive tissue

b. epidermis-protective outer covering of plant body

c. sclerenchyma-heavily lignified secondary walls

d. parenchyma-thin-walled, loosely packed, unspecialized

10. The tissue present in leaf stalk that allows easy bending of leaf is :

a. Parenchyma

b. sclerenchyma

c. collenchyma

d. meristematic cells

ANSWER SHEET

Tick the correct option.

Ques :1 a. b. c. d.

Ques :2 a. b. c. d.

Ques :3 a. b. c. d.

Ques :4 a. b. c. d.

Ques :5 a. b. c. d.

Ques :6 a. b. c. d.

Ques :7 a. b. c. d.

Ques :8 a. b. c. d.

Ques :9 a. b. c. d.

Ques :10 a. b. c. d.

Task -2: Hands-on Activity

For Learning outcome/outcomes: The students will be able

to Identify and give functions of various types of

meristematic tissue.

Task: The learners shall perform the following activity:

Take two wide-mouth glass tumblers or bottles (eg Jam bottle). Fill them

with water. Keep an onion bulb each on the both the tumblers so that

their condensed stems are immersed in water as shown in the picture

below.

Observe the growth of roots in both the bulbs for 4-5 days. Now cut all

the roots from the bulb in tumbler A by 1 cm from the tip. Now observe

the growth of roots for another 4-5 days .

Observation Table:

Growth of roots after

4-5 days (cm)

Growth of roots after

9-10 days

Tumbler A

Tumbler B

Tumbler A

(after roots are cut)

Time span: 10 minutes to prepare the setup and 9-10 days to run the

experiment.

c.w. / h.w To be performed in the class , can be given as home

activity.

Resources

required

Glass tumblers or glass bottles, onion bulb, needles to

support the bulb (optional), water

Assessment

rubric and

its criterion

Remedial measures :

• If student does not get the desired result, appropriate reading

material should be given.

• If result is still not achieved, a buddy should be assigned to

properly guide through the experiment.

Task -3: Demonstration

For Learning outcome/outcomes: Give structural and

functional differences between vascular tissue – xylem and

phloem

Task: The teacher shall demonstrate the following activity

Materials Required: A white coloured flower of carnation, two beakers,

red and blue ink, a sharp blade and water.

Procedure:

• Fill the beakers with water.

• Add a few drops of red ink into one beaker and a few drops of blue

ink in the other beaker.

• Take a flower with a stem that is at least six inches long.

• Using a sharp blade carefully cut the stem into two halfway up

towards the flower.

• Put each stem-half into the beakers as shown in the figure below.

• You may provide additional support to the flower by putting the set-

up against the wall.

Observation Sheet:

1.What is your observation ?

2. What do you think is the reason for this observation ?

3. These are the tubular structures present in xylem :

a. Sieve tubes

b. Xylem fibers

c. Tracheids and vessels

d. Xylem parenchyma

4.Name the part of phloem with perforated walls.

a. Companion cells

b. Sieve tubes

c. Phloem parenchyma

d. Phloem fibers

5.What is the difference between structure shown by label 1. and

structure shown by label 2 ?

a. 1 helps in storage of food , 2 . helps in conduction of food

b. 1 helps in conduction of food, 2. helps in conduction of water

c. 1 helps in conduction of water, 2. helps in conduction of food

d. 1 helps in storage of water, 2. helps in conduction of water

Time span: Time to prepare the setup and about two hours after

which observation sheet can be completed by the student.

c.w. / h.w To be demonstrated in the class

Resources

required

The set up for the experiment and observation sheets.

Assessment

rubric and

its criterion

Remedial Measures :

• Groups can be made to perform the activity for the students who

do not perform as expected.

• Reading material can be provided for such students.