Test: Mineral Requirement Of Plants, Essential Mineral Elements


10 Questions MCQ Test Biology Class 11 | Test: Mineral Requirement Of Plants, Essential Mineral Elements


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QUESTION: 1

Which of the following is not an essential element?

Solution:
QUESTION: 2

Which is essential for root hair growth?

Solution:

Calcium is an important constituent of middle lamellae in plants, where it is present as calcium pectate. Hence, actively growing regions of calcium like stem tip and root hairs essentially require calcium.

QUESTION: 3

The most abundant element present in plants is

Solution:

Carbon is one of the macronutrients present in the plants. It is the most abundant element found in plants. Carbon is a constiuent of organic compounds. It is one of the non-mineral element. Carbohydrates like sugars, starches and cellulose are the important organic compounds composed of carbon present in plants.
So, the correct answer is 'Carbon'

QUESTION: 4

Plants can be grown in

Solution:

Plants can be grown in ‘water or soil without essential nutrients'.
Plants require fundamental supplements for development, physiological changes, and other critical exercises. Soil having basic supplements is reasonable for plant development. Plants can likewise be developed in water having every single fundamental supplement.

QUESTION: 5

Zn, Mo, Fe and Cu are

Solution:

A trace element is any chemical element that is present in minute amounts in an environment or ecosystem.
Although a plant's primary nutritional needs are mostly met through nitrogen, phosphorus, and potassium (NPK), they also require small amounts of other elements as well.

QUESTION: 6

Which one of the following is not an essential element for plants?

Solution:
QUESTION: 7

Which one of the following is a micronutrient in plants?

Solution:
QUESTION: 8

The middle lamella mainly contains

Solution:
QUESTION: 9

Which of the following is a macronutrient?

Solution:
QUESTION: 10

The macronutrients which are an essential component of all organic compounds and yet not obtained by plants from soil are

Solution: Carbon is obtained by photosynthesis as a gas.