Assertion Reason type questions
Question number 1 to 5 are are Assertion(A)-Reason(R) type questions. In each of the following question a statement of Assertion is given by the corresponding statement of Reason.
Mark the correct answer as-
(a)lf both assertion and reason are true and reason is correct explanation of assertion
(b)Both assertion and reason are true but reason is not the correct explanation of assertion
(c) Assertion is true but reason is false
(d) Assertion is false but reason is true
(e) Both assertion and reason are false
Q1. (A) Robert brown discovered nucleus
(R) Nucleoplasm And Cytoplasm Of A Living Cell Together Form The Cytoplasm
Q2. (A) Lysosomes are often called as suicidal bags of a cell
(R) Lysosomes contain hydrolytic enzymes capable of digesting cellular waste
Q3. (A) Displacement of body may be zero even when distance is not zero
(R) Displacement and distance both are scalar quantities
Q4. (A) Speed of a body is distance travelled in unit time
(R) Speed is always equal or greater than velocity
Q5. (A) The position time graph of an object in uniform motion is a straight line
(R) Uniform motion object covers equal distance in equal interval of time.
Answers
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Explanation:
■SUB-AERIAL
Stems present partly aerial and partly underground is called SUB AERIAL STEMS.These are found in some weak stemmed plants
■AERIAL
Aerial plants have roots above the ground. Aerial plants are often found in rainforests where competition at ground level for light and food has lead to their evolution.
■UNDERGROUND PLANTS
A geophyte (earth+plant) is a plant with an underground storage organ including true bulbs, corms, tubers, tuberous roots, enlarged hypocotyls, and rhizomes
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