Answer the following statements true (T) or false (F)

1. Several micronutrients such a manganese and molybdenum are important for helping enzymes function.
2, The term macronutrients refers to the size of minerals such as nitrogen which is a macronutrient
3. Sunlight can actually be so intense that photosynthesis can be stopped.
4. One reason magnesium is important to plants is that it is part of the chlorophyll molecule.


1. TRUE
2, FALSE
3. TRUE
4. TRUE

Biology & Microbiology

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The white of an egg is made of albumin, a protein. When placed in a hot frying pan, this portion of the egg turns opaque and white. What do we call this phenomenon?

a. saturation b. hydrolysis c. denaturation d. polymerization

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Plants having the ability to take up organic nitrogen are most likely in which of the following

environments?

a. arctic tundra d. grassland b. salt marsh e. temperate forest c. tropical forest

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Which of the following is true regarding hemoglobin?

a. It is a lipid. b. It contains iron. c. It raises the concentration of oxygen in the blood. d. It is present in all vertebrates and invertebrates. e. It is identical to hemocyanin.

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During which time period did shallow seas cover much of the land and another burst of evolutionary diversification

occur? a. Silurian period b. Permian period c. Devonian period d. Ordovician period e. Carboniferous period

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