MHT CET · BIOLOGY · STD 12 - 1. Reproduction in Lower and Higher Plants

The exine of pollen grain is made up of

A chitin
B cellulose
C sporopollenin
D hemicellulose

Verified Solution

Answer & Solution

Correct Answer

(C) sporopollenin

Step-by-step Solution

Detailed explanation

Apply the relevant identity from the chapter and substitute the values established in the previous step, keeping the original constraint in view.

Use the simplified expression to isolate the unknown, then plug the result back into the question setup to confirm the working is internally consistent.

Cross-check against a boundary or limiting case. Both the dimensional balance and the qualitative behaviour at the extreme should agree with the candidate answer.

Combine the steps above to identify the correct option. The remaining choices each fail at least one of the consistency, dimensional, or boundary checks.

Same subject

Given below are the two statements.
Statement I: In prokaryotes, there is only one replicon however in eukaryotes, there are several replicons in tandem.
Statement II: The two separated strands in a replicon of DNA are prevented from rejoining by helicase enzyme.
In the light of above statement, choose the correct answer from the options given below.

MHT CET 2022 Medium
Which one of the following statements is INCORRECT regarding exchange of gas in plants?

MHT CET 2020 Medium
Heart beat decreases in the following conditions EXCEPT _____________ .

MHT CET 2023 Hard
Match the diseases in Column-I with their symptoms in Column-II. Select the correct answer from the options given below.
Column I Column II
i. Jaundice a. Associated with nauseatic feeling.
ii. Diarrhoea b. Difficulty in defaecation.
iii. Vomiting c. Yellowness of conjunctiva of eyes.
iv. Constipation d. Blood in stool

MHT CET 2022 Medium
Which one of the following is INCORRECT about population interaction?

MHT CET 2023 Hard
Complete the analogy.
Renal pelvis : ureter :: Renal cortex : ______

MHT CET 2024 Easy

Explore more questions on app

From MHT CET

Identify the geometry of complex formed when cobalt chloride is dissolved in water

MHT CET 2022 Medium
Let A, B, C and D be four nonempty sets. The contrapositive of 'if \(A \subseteq B\) and \(B \subseteq D\) then \(A \subseteq C\) ' is

MHT CET 2022 Easy
A string of length ' \(L\) ' fixed at one end carries a body of mass ' \(m\) ' at the other end. The mass is revolved in a circle in the horizontal plane about a vertical axis passing through the fixed end of the string. The string makes angle ' \(\theta\) ' with the vertical. The angular frequency of the body is ' \(\omega\) '. The tension in the string is

MHT CET 2023 Medium
A spring has a certain mass suspended from it and its period for vertical oscillations is ' \(T_1\) '. The spring is now cut in to two equal halves and the same mass is suspended from one of the halves. The period of vertical oscillations is now ' \(T_2\) '. The ratio \(T_1 / T_2\) is

MHT CET 2023 Hard
Calculate work done in isothermal reversible expansion of 1 mole ideal gas from initial pressure 10 bar to final pressure 1 bar at 300 K \(\left(\mathrm{R}=8.314 \mathrm{~J} \mathrm{~K}^{-1} \mathrm{~mol}^{-1}\right)\)

MHT CET 2025 Medium
How many metamers are possible for molecular formula \(\mathrm{C}_{4} \mathrm{H}_{11} \mathrm{~N} ?\)

MHT CET 2011 Medium

Explore more questions on app

	Column I		Column II
i.	Jaundice	a.	Associated with nauseatic feeling.
ii.	Diarrhoea	b.	Difficulty in defaecation.
iii.	Vomiting	c.	Yellowness of conjunctiva of eyes.
iv.	Constipation	d.	Blood in stool