Biology under nutrition answer properly

Here are the answers to your biology questions about Rhizopus:

a)

• B: Rhizoids
• C: Sporangium
• D: Sporangiophore

b)
The part labeled E represents the hyphae (or mycelium). Its function is to absorb nutrients from the substrate after extracellular digestion.

c)
The organism obtains its food through extracellular digestion. It secretes digestive enzymes onto its food source (e.g., bread). These enzymes break down complex organic molecules into simpler, soluble substances, which are then absorbed by the hyphae.

d)
One difference between a spore and a zygospore is:

• A spore (like those produced in the sporangium) is typically a haploid reproductive cell, often produced asexually, primarily for dispersal.
• A zygospore is a thick-walled, diploid resting spore formed by the sexual fusion of two compatible hyphae, designed to withstand harsh conditions.

e)
Three important roles played by fungi in nature are:

1. Decomposers: Fungi break down dead organic matter, recycling essential nutrients back into the ecosystem.
2. Symbiotic relationships: Many fungi form beneficial relationships, such as mycorrhizae with plant roots, enhancing nutrient and water absorption for plants.
3. Source of medicine: Some fungi produce antibiotics, like penicillin, which are crucial in treating bacterial infections.