Model Paper 8 — NEET STD 11 Science — Question

The ecosystem consists of

The meristem in the root is

Identify the statement which is incorrect.

Which of the following statements are correct regarding transcription ?
(i) rRNAs plays structural and catalytic role during translation.
(ii) There is single DNA-dependent RNA polymerase that catalyses transcription of all types of RNA in bacteria.
(iii) RNA polymerases are able to catalyse all the three steps of transcription i.e., initiation, elongation and termination.
(iv) The RNA polymerase is only capable of catalysing the process of elongation.
(v) Many times the translation can begin much before the mRNA is fully transcribed in bacteria, so transcription and translation can be coupled in bacteria.
(vi) In eukaryotes, there are at least three types of RNA polymerases in the nucleus.
(vii) In eukaryotes, the primary transcripts called hnRNA contain both the exons and the introns and are non-functional.

Pomato is

The major function of contractile vacuole is

Parthenogenesis is a term of

Which of the following statements are correct from given statement ?
(i) Glucose is the favoured substrate for respiration. All carbohydrates are usually first converted into glucose before they are used for respiration.
(ii) Other substrates like fats, proteins can also be respired but they do not enter the respiratory pathway at the first step.
(iii) If fatty acids were to be respired they would first be degraded to acetyl CoA and enter the pathway.
(iv) Glycerol would enter the pathway after being converted to PGAL.
(v) The proteins would be degraded by proteases and the individual amino acids and it enter the pathway at some stage within the Krebs' cycle or even as pyruvate or acetyl CoA.
(vi) Because the respiratory pathway is involved in both anabolism and catabolism it consider as an amphibolic pathway rather than as a catabolic one.