NEET  >  Topic-wise MCQ Tests for NEET  >  Test: What is Living (NCERT) Download as PDF

Test: What is Living (NCERT)


Test Description

5 Questions MCQ Test Topic-wise MCQ Tests for NEET | Test: What is Living (NCERT)

Test: What is Living (NCERT) for NEET 2022 is part of Topic-wise MCQ Tests for NEET preparation. The Test: What is Living (NCERT) questions and answers have been prepared according to the NEET exam syllabus.The Test: What is Living (NCERT) MCQs are made for NEET 2022 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: What is Living (NCERT) below.
Solutions of Test: What is Living (NCERT) questions in English are available as part of our Topic-wise MCQ Tests for NEET for NEET & Test: What is Living (NCERT) solutions in Hindi for Topic-wise MCQ Tests for NEET course. Download more important topics, notes, lectures and mock test series for NEET Exam by signing up for free. Attempt Test: What is Living (NCERT) | 5 questions in 5 minutes | Mock test for NEET preparation | Free important questions MCQ to study Topic-wise MCQ Tests for NEET for NEET Exam | Download free PDF with solutions
1 Crore+ students have signed up on EduRev. Have you?
Test: What is Living (NCERT) - Question 1

Read the following statements and select the correct ones.
(i) Increase in mass and increase in number of individuals are twin characteristics of growth.
(ii) Metabolic reactions can be demonstrated outside the body in isolated cell-free systems.
(iii) 'Response to stimuli' is a defining property of living organisms.

Detailed Solution for Test: What is Living (NCERT) - Question 1
  • Increase in body mass (by cell division) and increase in number of individuals (by reproduction) are considered as twin characteristics of growth.
  • As non-living organisms also grow and many living organisms are unable to reproduce, therefore, growth and reproduction are not considered as defining characteristics of living organisms.
  • All organisms, from primitive prokaryotes to most advanced and complex eukaryotes, are able to sense and respond to environmental factors.
  • The stimuli are perceived by sense organs in higher animals through sensory receptors e.g. eyes, ears, nose. Plants do not possess such sense organs. However, they do respond to external factors such as light, water, temperature, pollutants, other organisms, etc.
  • Human beings have an additional facility of self consciousness (awareness of self).
  • Consciousness and response to stimuli are said to be the defining properties of living organisms.
  • The sum total of all the chemical reactions occurring in our body is called metabolism. Non-living objects do not exhibit metabolism. Metabolic reactions can be demonstrated outside the body in cell-free systems.
  • An isolated metabolic reaction outside the body of an organism, performed in a test tube is neither living nor nonliving.
  • Cellular structure is the defining property of living beings as each living being is a complex entity which is formed of one or more cells.
Test: What is Living (NCERT) - Question 2

In plants, cell division occurs _____ whereas in animals, it occurs _____.

Detailed Solution for Test: What is Living (NCERT) - Question 2

A multicellular organism increases its mass by cell division. In plants growth continues throughout life as they have meristematic areas where cell divisions occur continuously. In animals, growth occurs to a certain age after which cells divide only to replace worn out and lost cells.

Test: What is Living (NCERT) - Question 3

Which of the following organisms do not reproduce?

Detailed Solution for Test: What is Living (NCERT) - Question 3
  • A mule is a hybrid of male donkey and female horse.
  • It inherited size and intelligence from the horse and firm footedness, great tolerance and ability to live on rough food from the donkey. However, with all its hybrid vigour the mule is sexually sterile (i.e., unable to reproduce) and have to be produced every time a new.
  • Honey bees are colonial, social and polymorphic inserts.
  • Three types of individuals (castes) are found in the colony of honey bees: (i) Queen which is fertile female, (ii) Drones which are males, (iii) Workers are sterile females and perform various duties of the colony.
  • A large number of couples are infertile It means they are unable to produce children inspite of unprotected sexual activities. Thus inability to conceive or produce children even after unprotected sexual cohabitation is called as infertility.
Test: What is Living (NCERT) - Question 4

Which of the following groups consist of organisms which multiply by fragmentation?

Detailed Solution for Test: What is Living (NCERT) - Question 4
  • In fungi, vegetative reproduction occurs by fragmentation, budding (in yeasts), sclerotia, rhizomorphs, etc.
  • In algae, asexual reproduction occurs by means of various kinds of spores. However, in some filamentous algae, multiplication occurs by fragmentation.
  • In Bryopsida (mosses), vegetative reproduction occurs through fragmentation, formation of secondary protonema, gemmae, tubers, etc
Test: What is Living (NCERT) - Question 5

The statement nothing lives forever, yet life continue illustrates the role of 

Detailed Solution for Test: What is Living (NCERT) - Question 5

Reproduction is the formation of new individuals of the similar kind — Life arises promote-existing life. Reproduction is not essential for survival of the individuals It is required for perpetuation of a population.

Use Code STAYHOME200 and get INR 200 additional OFF
Use Coupon Code
Information about Test: What is Living (NCERT) Page
In this test you can find the Exam questions for Test: What is Living (NCERT) solved & explained in the simplest way possible. Besides giving Questions and answers for Test: What is Living (NCERT), EduRev gives you an ample number of Online tests for practice