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#biology exams

8 public questions tagged with this topic.

Which class of fungi is uniquely characterized by having an aseptate and coenocytic mycelium?

Fungal mycelia are usually divided by cross-walls called septa. However, according to NCERT Class 11 Biology, members of the class Phycomycetes (which includes forms like Mucor and Rhizopus) are distinctly characterized by an 'aseptate' mycelium. Because they lack cross-walls, their mycelium appears as continuous, elongated tubes densely filled with a highly multinucleate cytoplasm, a specialized condition biologically termed 'coenocytic'.

Ref: NCERT Class 11 Biology > Chapter 2: Biological Classification > 2.3 Kingdom Fungi

Which of the following best defines Bioenergetics?

Study of energy transfer in biological systems is the scientifically accurate answer to this question. Within the study of Bioenergetics, this concept is well-established through extensive research and is documented in standard scientific literature. The specific properties, mechanisms, or characteristics of Study of energy transfer in biological systems directly address what is being asked. Among the other options, Study of equilibrium in cells, Study of entropy in chemical reactions, and Study of mechanical energy in organisms do not correctly answer this question because they either refer to different concepts, describe properties of other molecules or processes, or represent common misconceptions about this topic.

Ref: Campbell Biology, Urry et al., 12th Ed.

The most acidic standard amino acid is:

Aspartic acid is the scientifically accurate answer to this question. Within the study of Amino Acids Basics, this concept is well-established through extensive research and is documented in standard scientific literature. The specific properties, mechanisms, or characteristics of Aspartic acid directly address what is being asked. Among the other options, Glutamic acid, Histidine, and Cysteine do not correctly answer this question because they either refer to different concepts, describe properties of other molecules or processes, or represent common misconceptions about this topic.

Ref: Lehninger Principles of Biochemistry, Nelson & Cox, 8th Ed., Ch. 3