Q1. Fats in the diet have satiety value they stay in stomach longer so we feel fuller longer. Fats provide protective coatings on the body surfaces to help prevent dehydration. Lipids – 2 what are the main categories of lipids found in humans? Q2. This raises a challenging question: In […]

A hermaphroditic plant species has 5 alleles at itsself-compatibility locus, S1, S2, S3, S4, S5. The genotype ofthe stigma is S3S4. A pollen grain lands on the stigma withthe genotype S1S3. In this case,            A.       the pollen grain germinatesand fertilizes an ovule.            B.       the pollen grain aborts.            […]

Simple (Passive) Diffusion Describe the direction of transport relative to theconcentration gradient: Molecules move down a concentration gradient. They movefrom region of higher concentration to one of lower concentrationbecause of random thermal agitation. Describe where the energy for transport comes from: No metabolic energy input is required. Describe IF and […]

Why does it make sense that life started so small? Why does it make sense that it started in water? What does it mean to be an “multicellular organism”? The cellular slime mold Dictyostelium discoideum exists initially as a collection of separate cells moving over the forest floor. In times […]