Which class of fungi includes the common bread mold, Rhizopus stolonifer?
A. Ascomycetes
B. Phycomycetes
C. Basidiomycetes
D. Deuteromycetes
Answer: Option B
Solution (By JKExamLibrary)
Rhizopus stolonifer belongs to the class Phycomycetes (or Zygomycetes). These fungi are characterized by a coenocytic (multinucleate, aseptate) mycelium and reproduce asexually by forming motile or non-motile spores in sporangia. Ascomycetes (sac fungi) have septate hyphae and produce ascospores in asci. Basidiomycetes (club fungi) produce basidiospores on basidia. Deuteromycetes are imperfect fungi lacking a known sexual stage.
Explanation:
In aquatic plants like Hydrilla, the rate of photosynthesis can be estimated by counting the number of oxygen bubbles released per minute under light. Manometry measures pressure changes, respirometry respiration, spectrophotometry light absorbance.
Explanation:
Pepsin is the main digestive enzyme in the stomach. It is secreted by the chief cells (zymogenic cells) of the gastric glands in an inactive form called pepsinogen. Pepsinogen is activated into pepsin by the acidic environment created by hydrochloric acid (HCl) secreted by parietal cells. Pepsin then digests proteins into proteoses and peptones.
Explanation:
Thyroid-stimulating hormone (TSH) from the anterior pituitary binds to thyroid follicular cells, stimulating the release of Tâ and Tâ.
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