NEET · Biology · STD 12 - 1. sexual reproduction in flowering plants
Which of the following statements is correct?
- A Sporopollenin can be degraded by enzymes.
- B Sporopollenin is made up of inorganic materials.
- C Sporopollenin can withstand high temperatures as well as strong acids and alkalis.
- D Sporopollenin can withstand high temperatures but not strong acids.
Answer & Solution
Correct Answer
(C) Sporopollenin can withstand high temperatures as well as strong acids and alkalis.
Step-by-step Solution
Detailed explanation
(c) : Pollen grain is a haploid, unicellular body. It is cuticularised and the cutin is of special type called sporopollenin, which is resistant to chemical and biological decomposition. It can withstand high temperatures as well as strong acids and alkalis. This is why, pollen wall is preserved for long periods in fossil deposits. In addition pollen wall possesses proteins for enzymatic and compatability reactions.
See the Complete Solution
Get step-by-step explanations for this and 2.5 Lakh+ more JEE, NEET & CET questions.
- Unlock all solutions
- Practice the full chapter
- Track accuracy across PYQs
4.8 rated on Google Play · 14,000+ reviews
More questions from Biology
- Consider the following statements
\((A)\) Coenzyme or metal ion that is tightly bound to enzyme protein is called prosthetic group.
\((B)\) A complete catalytic active enzyme with its bound prosthetic group is called apoenzyme.
Select the correct option.NEET 2019 Easy - The plant hormone used to destroy weeds in a field is :NEET 2021 Medium
- Non-membranous nucleoplasmic structures in nucleus are the site for active synthesis ofNEET 2019 Medium
- Match List-\(I\) with List-\(II\)
Choose the correct answer from the options given below.List-\(I\) List-\(II\) (A) GLUT-\(4\) (I) Hormone (B) Insulin (II) Enzyme (C) Trypsin (III) Intercellular ground substance (D) Collagen (IV) Enables glucose transport into cells NEET 2024 Medium - Phosphoenol pyruvate \((PEP) \) is the primary \(CO_2\) acceptor inNEET 2017 Medium
- The recombination frequency between the genes \(a\, \& \, c\) is \(5 \,\% \,, b\, \& \,c\) is \(15 \,\%,\, b\, \& \,d\) is \(9 \%, \,a\, \& \,b\) is \(20 \%\) , \(c\, \& \,d\) is \(24 \%\) and \(a \, \& \,d\) is \(29 \%\). What will be the sequence of these genes on a linear chromosome?NEET 2022 Medium
More PYQs from NEET
- A solld cylinder of mass \(2 \;\mathrm{kg}\) and radius \(50 \;\mathrm{cm}\) rolls up an inclined plane of angle inclination \(30^{\circ}\). The centre of mass of cyllnder has speed of \(4 \;\mathrm{m} / \mathrm{s}\). The distance travelled by the cyllinder on the incline surface will be ......\(m\)NEET 2019 Medium
- Assisted reproductive technology, \(IVF\) involves transfer ofNEET 2014 Medium
- Identify the site where Wuchereria bancrofti is normally found in human body.NEET 2013 Medium
- Which one of the following ions exhibits \(d-d\) transition and paramagnetism as well ?NEET 2018 Hard
- The effective capacitances of two capacitors are \(3\,\mu F\) and \(16\,\mu F\), when they are connected in series and parallel respectively. The capacitance of two capacitors areNEET 2022 Medium
- A point object is placed at a distance of \(60\, \mathrm{~cm}\) from a convex lens of focal length \(30 \,\mathrm{~cm}\). If a plane mirror were put perpendicular to the principal axis of the lens and at a distance of \(40\, \mathrm{~cm}\) from it, the final image would be formed at a distance of :
NEET 2021 Hard