Tag: transport of food, water and minerals

Questions Related to transport of food, water and minerals

Which of the following is related with transfer of food material?

botany plant physiology mineral absorption transport of food, water and minerals mineral transport theories of translocation transport in the phloem of plants

  1. Xylem

  2. Collenchyma

  3. Phloem

  4. Parenchyma

Show answer
Correct Option: C
Explanation:

Xylem tissue is comprised of dead cells involved in the process of transport of water and minerals. Transport of water is under the influence of transpiration pull and is a physical process. 

Phloem tissue is comprised of living cells involved in the process of translocation of sugars. Translocation of sugars requires living cells and is a physiological process. The sugars are transported under the influence of pressure difference between source and sink, which leads to mass flow.

Leaf photosynthates are transported to other parts of higher plants through

botany plant physiology mineral absorption transport of food, water and minerals mineral transport theories of translocation transport in the phloem of plants

  1. Cambium

  2. Pith

  3. Xylem

  4. Phloem

Show answer
Correct Option: D
Explanation:

Phloem is involved in transport of sugars. Phloem cells are living cells, which carry out the physiological process of sugar transport in higher plants.

By many evidences, it can be known that the downward movement of food takes place through

botany plant physiology mineral absorption transport of food, water and minerals mineral transport theories of translocation transport in the phloem of plants

  1. Phloem

  2. Xylem

  3. Collenchyma

  4. Sclerenchyma

Show answer
Correct Option: A
Explanation:

Movement of food takes place through phloem tissue. This can be demonstrated through ringing experiment in which, if ring of vascular tissue including phloem is removed in a dicot tree. The plant parts located below the point of ringing will die because these parts do not get food.

Thus, the correct answer is option A.

How many of the following features are related to Dixon and Jolly model of water transport in plants?
a. Cohesion between water molecules
b. Transpiration pull
c. Pushing of water by negative root pressure
d. Surface tension
e. Pushing of water by positive root pressure.

botany plant physiology mineral absorption transport of food, water and minerals mineral transport theories of translocation transport in the phloem of plants

  1. $4$

  2. $5$

  3. $2$

  4. $3$

Show answer
Correct Option: A

Bulk flow or mass flow.

botany plant physiology mineral absorption transport of food, water and minerals mineral transport theories of translocation transport in the phloem of plants

  1. Can be achieved through root pressure

  2. Can be achieved through transpiration pull

  3. Can be achieved either through a positive Hydrostatic pressure or a negative hydrostatic pressure

  4. More than one option is correct

Show answer
Correct Option: A

The major source of minerals in the soil is

biology transport in plants transport of food, water and minerals theories of translocation transport in the phloem of plants

  1. Parent rock from which soil is formed

  2. Plants

  3. Animals

  4. Decomposers

Show answer
Correct Option: A
Explanation:

The absorption, distribution and metabolism of various mineral elements by plants are called mineral nutrition. The mineral elements play important role in the performance and maintenance of life activities. All microelements are absorbed by plants in traces and derived from the parent rock by the process of weathering. 

So, the correct answer is option A.

Nutrient which are required in small quantities are called as

biology transport in plants transport of food, water and minerals theories of translocation transport in the phloem of plants

  1. Macronutrients

  2. Micronutrients

  3. Primary nutrients

  4. None of the above

Show answer
Correct Option: B
Explanation:

A nutrient which is required in small quantities is called as a micronutrient. The micronutrients are boron, chlorine, copper, iron, manganese, molybdenum and zinc. These plant food elements are used in very small amounts, but they are just as important to plant development and profitable crop production as the major nutrients. Especially, they work "behind the scene" as activators of many plant functions.

Thus, the correct answer is 'Micronutrients'.

Ammonium sulphate is a

biology transport in plants transport of food, water and minerals theories of translocation transport in the phloem of plants

  1. Pesticide

  2. Weedicide

  3. Fertilizer

  4. Tonic chemical

Show answer
Correct Option: C
Explanation:

Ammonium sulfate is a fertilizer as it increases the fertility of soil and plants can use it for their functions.

It cannot kill pests or weeds and hence is not a pesticide or a weedicide.
Tonic chemicals are medicines given to feel vigour. Ammonium sulfate has no such function.
So the correct answer is 'Fertilizer'.

Active transport of ions by the cell requires

biology transport in plants transport of food, water and minerals theories of translocation transport in the phloem of plants

  1. High temperature

  2. ATP

  3. Alkaline pH

  4. Salts

Show answer
Correct Option: B
Explanation:

Whenever active transport is being carried out energy is required and ATP is used up as it is the energy currency of the cell.

High temperature, Alkaline pH or Salts cannot carry out active transport as it involves movement of a substance against it's concentration gradient.
So, the correct answer is 'ATP'

Active transport from outside to inside of molecules across a membrane requires

biology transport in plants transport of food, water and minerals theories of translocation transport in the phloem of plants

  1. Cyclic AMP

  2. ATP

  3. Phloroglucinol

  4. Acetyle chloine

Show answer
Correct Option: B
Explanation:

The active transport of substances require energy and hence they use up ATP which is the energy currency of the cell.

Acetly choline and Cyclic AMP are involved in cell signalled.
Phloroglucinol is a stain used to observe lignin.
So the correct answer is 'ATP'.