Anatomy of Root

Q.

Is Casparian strip present in monocot root?

Q. Casparian strip contains ___ A ___ and is a part of___B____. Identify A and B here.

1. A-lignin, B-epidermis
2. A-pectin, B-xylem vessels
3. A-suberin, B-endodermis of stem
4. A-suberin, B-endodermis of root

Q. The correct sequence of path of water from the soil into the xylem of the root is:

1. Soil-epiblema-endodermis-cortex-pericycle-xylem
2. Soil-epiblema-cortex-endodermis-pericycle-metaxylem-protoxylem
3. Soil-cortex-epiblema-pericycle-metaxylem-protoxylem
4. Soil-epiblema-cortex-endodermis-pericycle-protoxylem-metaxylem

Q.

The path of water from the soil in to the xylem of the root is:

1. Soil - root hair - endodermis - cortex - pericycle - xylem

2. Soil - root hair - cortex - endodermis - pericycle - protoxylem - metaxylem

3. Soil -root hair -cortex - endodermis - pericycle - metaxylem - protoxylem

4. Soil - cortex - root hair - pericycle - metaxylem - protoxylem

Q. Assertion: Pinus seeds germinate and establish in the presence of mycorrhizae.
Reason: Fungal filaments form network around the young roots/penetrate the root and increase the amount of water absorption in these plants.

1. Both A and R are correct and R is the correct explanation of A.
2. Only A is correct.
3. Both A and R are correct but R is not the correct explanation of A.
4. Both A and R are incorrect.

Q. In the given flow chart, the flow of water is shown from soil to xylem of the root. Identify the tissues involved in steps A and B.

1. A–Hypodermis; B–Protoxylem
2. A–Medullary rays; B–Phloem
3. A–Endodermis; B–Phloem
4. A–Endodermis; B–Protoxylem

Q. Casparian strips are present in the ___________of root and have depositions of______

1. endodermis, suberin
2. endodermis, chitin
3. pericycle, suberin
4. epiblema, suberin

Q. Describe the morphology of a tap root system.

Q. Differentiate between .
Exarch xylem and endarch xylem

Q. The primary function of casparian strips is to

1. force water and minerals through the membranes of endodermal cells
2. prevent entry into the stele solely through the apoplast
3. provide regulation for water and minerals movement in the plants
4. all the above

Q. Assertion: Pinus seeds germinate and establish in the presence of mycorrhizae.
Reason: Fungal filaments form network around the young roots/penetrate the root and increase the amount of water absorption in these plants.

1. Both A and R are correct and R is the correct explanation of A.
2. Both A and R are correct but R is not the correct explanation of A.
3. Only A is correct.
4. Both A and R are incorrect.

Q.

Does lichen have roots?

Q. What is freundlich adsorption isotherm

Q.

Association between roots of higher plants and fungi is

1. 
   

   Moss
   

2. 
   

   Fern
   

3. 
   

   Mycorrhiza
   

4. 
   

   Lichen
   

Q. The pressure by which root hairs absorb water and minerals , from the soil, is

1. ion exchange
2. DPD
3. turgor pressure
4. Osmosis

Q. The reabsorption of water in the tubules of nephrons takes place by

1. Simple diffusion
2. Osmosis
3. Active transport
4. Filtration

Q. Assertion :Agrobacterium tumefaciens causes crown gall in dicots Stems. Reason: Agrobacterium tumefaciens enters host through wound and injuries.

1. Both Assertion and Reason are correct and Reason is the correct explanation for Assertion
2. Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion
3. Assertion and Reason are correct
4. Both Assertion and Reason are incorrect

Q. Cell P has DPD = 4 atm and OP = 6 atm whereas cell Q has OP = 4 atm and TP = 0 atm and cell R has OP = 7 atm and WP = 3 atm. What will happen when cells arc placed together in parts'? A. B. C. Water %% Ill flow from R Q and Q --> D. No Ilo% water between cats

1. Water will flow from cell $P\to Q$and $R\to Q$
2. Water will flow from cell $Q\to P$ and $Q\to R$
3. Water will flow from $R\to Q$ and $Q\to P$
4. No flow of water between cell

Q.

Absorption of water along with mineral solutes mostly take place through maturation region of the root tip.

1. True

2. False

Q. Casparian strip occurs in

1. Pericycle
2. Endodermis
3. Epiblema
4. Cortex

Q. The primary function of casparian strips is to

1. force water and minerals through the membranes of endodermal cells
2. prevent entry into the stele solely through the apoplast
3. provide regulation for water and minerals movement in the plants
4. all the above

Q. Choose the correct answers from the alternatives given.
The Casparian strip is found

1. within the secondary wall of parenchyma cells
2. on four sides of endodermal cells
3. between all epidermal cells
4. between xylem and phloem cells

Q. The information given below shows the organisation of cells in the human body. Which of the following are examples of stage P?

1. Stomach, Platelet, Eye
2. Kidney, Sperm, Ear
3. Liver, Ovum, Lung
4. Uterus, Skin, Nose

Q. In what way does a fungus growing around the roots of higher plants benefit them?

1. It products antimicrobial substances
2. All of them
3. It produces growth promoting substances
4. It helps in absorbing water nitrogen and other minerals

Q. Select the correct statement from the following

1. Absorption of water by seeds and dry wood are examples of facilitated diffusion.
2. The apoplast is the system of interconnected protoplasts.
3. Pinus seeds can not germinate and establish without the presence of mycorrhizae.
4. The translocation in phleom is unidirectional, whereas in the xylem it is bidirectional.

Q.

The path of water from the soil in to the xylem of the root is:

1. Soil - root hair - endodermis - cortex - pericycle - xylem

2. Soil - root hair - cortex - endodermis - pericycle - protoxylem - metaxylem

3. Soil - cortex - root hair - pericycle - metaxylem - protoxylem

4. Soil -root hair -cortex - endodermis - pericycle - metaxylem - protoxylem

Q.

Root hairs occurs in the zone of

1. Cell elongation

2. Cell maturation

3. Root cap

4. Cell division

Q. Movement of water and mineral salts in plant is __________.

1. Osmosis
2. Absorption
3. Ascent of sap
4. Active absorption

Q. Resin canals can be traced in

1. Pine
2. Calotropis
3. All of these
4. Ferns

Q.

In a transverse section of diacod stem identify the regions where the following are present:-

1.tissues responsible for conuction of water.

2.protective tissue having a coating of cuticle.

3.Lateral meristem that increases the girth of the plant.

4.Collenchyma forming a layer below the epidermis.