Transport in Plants-I Biology Test Series for NEET-2020

Test Preparation on Transport in plants –I Biology Test Series for NEET - 2020

The sugarcane plant has

1Dumb-bell shaped guard cells
2Pentamerous flowers
3Reticulate venation
4Capsular fruits

(a) The guard cells of monocots (family - Gramineae) are
dumbel shaped or elliptical, e.g., Sugarcane.

Some leaves are removed from the stem cuttings planted for
vegetative propagation. This is done

1To increase water uptake
2Because it helps in rooting of cuttings
3To reduce water loss
4Because the cuttings need less food

Exchange of substances between individual cells and their
environments takes place by

1Osmosis
2Diffusion
3Active transport
4All of these

(b) Loam are sufficiently aerated and have good water
holding capacity. Therefore, they are very good for
water absorption and growth.

The amount of water held by the soil after drainage is
known as

1Mineral water
2Soil water
3Field capacity
4Gravitational capacity

Lenticels and hydathodes are small pores with following
common attributes

1Their opening and closing is not regulated
2They allow exchange of gases
3They always remain closed
4They are found on the same organ of plants

Attractive forces of cell walls for water molecules is termed as

1Adhesion
2Cohesion
3Osmosis
4Plasmolysis

(a) Walls of tracheids and vessels of xylem are made up of
lignin and cellulose and have strong affinity for water
(adhesion).

In trees, death of protoplasts is essential for a vital function
such as

1Stomatal movements
2Both water and food transport
3Water transport
4Food transport

Which one of the following doesn't help in molecule
transport

1Diffusion
2Osmosis
3Surface tension
4Active transport

Meaningful girdling (Ringing) experiments cannot be done
on sugarcane because

1Phloem is present inside the xylem
2It can not tolerate the injury
3Vascular bundles are scattered
4Plants are very delicate

(c) In monocot like sugarcane, maize, etc. due to absence
of cambium secondary growth is not found. So removal
of bark (phloem) is not possible so that ringing
experiment is not possible.

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Test Preparation on Transport in plants –I Biology Test Series for NEET - 2020

The sugarcane plant has

Some leaves are removed from the stem cuttings planted forvegetative propagation. This is done

Exchange of substances between individual cells and theirenvironments takes place by

The amount of water held by the soil after drainage isknown as

Lenticels and hydathodes are small pores with followingcommon attributes

Attractive forces of cell walls for water molecules is termed as

In trees, death of protoplasts is essential for a vital functionsuch as

Which one of the following doesn't help in moleculetransport

Meaningful girdling (Ringing) experiments cannot be doneon sugarcane because