Epidermal Appendages

Q.

What is the epidermal hair present on the stem called?

Q. Epidermal appendages on stem is called _________

1. They are composed of living cells

2. Are called stone cells.

3. Found in shell of nuts, pulp of guava and seed coat of pea.

4. They are a kind of sclerenchyma.

Q. Read the following statements and answer the question
i) Present on the stem as epidermal hairs.
ii) They are usually multicellular.
iii) They may be branched or unbranched and soft or stiff
iv) They help in preventing water loss due to transpiration

Which part of the epidermal tissue system is being described by the above statements?

1. Stomata
2. Guard cells
3. Epidermis
4. Trichomes

Q. Pulvinus condition is seen in

1. Calotropis
2. Mimosa
3. Alstonia
4. Ocimum

Q.

Epidermal cells are often modified to perform specialised functions in plants. Name some of them and function they perform.

Q. Root hair and trichomes are

1. epidermal appendages in epidermal tissue system
2. members of the ground tissue system
3. members of vascular tissue system
4. used for gaseous exchange

Q. Hairy outgrowth present on the stem are called .

1. cilia
2. villi
3. trichomes
4. fimbrae

Q.

What is the composition of the epidermal tissue system?

Q. What is "rhytidome"?

1. Bark
2. Dead tissue separated by periderm on outside of bark
3. Dead tissue separated by periderm on inner side
4. Secondary cortex

Q. Epidermal appendages on stem is called _________

1. Stem Hair
2. Plerome
3. Epidermal hair
4. Trichome
   

Q. Hairy outgrowth present on the stem are called .

1. cilia
2. villi
3. trichomes
4. fimbrae

Q. Transparent part of human nail is made up of

1. Living protein eleidin
2. Dead protein keratin
3. Collagen fibres
4. All of the above

Q. In dicot roots, cells of which of the following region show Casparian strips?

1. Cambium
2. Pericycle
3. Endodermis
4. Hypodermis

Q. Which tissue has the dome-shaped cells on the apical surface?

1. Endothelium
2. Mesothelium
3. Transition
4. None of the above

Q. ______ is a pigment which controls photoperiod, flowering, seed germination, stomatal opering.

1. $P_{680}$
2. $P{r}_{660}$
3. $P_{700}$
4. $Pf{r}_{730}$

Q. Ochreate stipules occur in

1. Rose

2. Polygonum

3. Lathyrus aphaca

4. Smilax

Q.

Select correct features w.r.t. trichomes in shoot system

1. Usually uni-celled

2. Branched or unbranched

3. May be secretory

4. Soft or stiff

5. Helps against transpiration

1. 1, 3 and 5

2. 1, 2, 4 and 5

3. All except 3 and 4

4. All except 1

Q. Trichomes are seen in

1. root
2. leaves
3. stomata
4. stem

Q. Mention two ways in which root hairs are suited for absorption of water from the soil.

Q. Root hair and trichomes are

1. epidermal appendages in epidermal tissue system
2. members of the ground tissue system
3. members of vascular tissue system
4. used for gaseous exchange