Assertion :Chara is stonewort Alga, close to Bryophytes. Reason: It has jacketed sex organs.

Both Assertion and Reason are correct and Reason is the correct explanation for Assertion.

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

Both Assertion and Reason are correct but Reason is not the correct explanation for Assertion.

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Assertion is correct but Reason is incorrect.

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Assertion is incorrect but Reason is correct.

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is A Both Assertion and Reason are correct and Reason is the correct explanation for Assertion.
Chara, a fresh water green algae is found submerged in fresh water ponds, lakes, tanks and slow running water. Generally, it is found in hard fresh water rich in organic matter, calcium and deficient in oxygen. These plants have encrustation of calcium carbonate and hence are known as stoneworts. They resemble higher plants and their structure includes root like rhizoids, the whorl of branches at regular intervals and an erect cylindrical axis surrounded by a sheath of small cells. In sexual reproduction, each female sex organ called oogonium contains one large immobile egg and each male sex organ called antheridium produces one small biflagellate sperm. The reproductive structures being surrounded by an envelope of sterile cells resemble higher plants, Bryophytes.
Thus, the correct answer is option A.

Suggest Corrections

Similar questions

Q. Assertion: The compressibility factor for

H_{2}

and

H e

(1 + \frac{P b}{R T})

Reason: The compressibility factor for

H_{2}

and

H e

can be derived from Van der Waal's equation.

Assertion (A) Order of the reaction can be zero or fractional.

Reason (R) We cannot determine order from balanced chemical equation.

(a) Both assertion and reason are correct and the reason is correct explanation of assertion
(b) Both assertion and reason are correct, but reason does not explain assertion.
(c) Assertion is correct, but reason is incorrect
(d) Both assertion and reason are incorrect
(e) Assertion is incorrect but reason is correct.

Assertion – The non-fusible impurities present in iron ore are removed by $C a C O_{3}$ .

Reason: $C a C O_{3}$ which decomposes into $C a O$ and $C O_{2}$ . The $C a O$ formed reacts with $S i O_{2}$ to remove silica

Assertion (A) Order and molecularity are same.

Reason (R) Order is determined experimentally and molecularity is the sum of the stoichimetric coeffcient of rate determining elementary step.

ASSERTION: n-Pentane and n-Hexane belong to a homologous series.

REASON: n-Pentane and n-Hexane belong to the same class of hydrocarbons and they differ by a - $C H_{2}$ - group.

Join BYJU'S Learning Program