Question

What are the possible fates of glucose that is produced by photosynthesis?

	a.	Oxidation of glucose by cellular respiration
	b.	Production of ATP by fermentation
	c.	Storage of glucose as starch in parenchymal root cells
	d.	Formation of the disaccharide sucrose to sugar transport throughout the plant
	e.	All of the above are correct

Your research team identifies a bird species that has defective amylase. What would be the result of this defect?

	a.	Birds do not express amylase – this enzyme is only expressed in plants
	b.	Birds will not be able to build glycogen in their muscle cells when the need energy
	c.	Birds will not be able to cleave glycosidic bonds in starch that is consumed in the diet.
	d.	Birds will not be able to cleave glycosidic bonds in glycogen in their muscle cells when they need energy.
	e.	Birds will not be able to cleave glycosidic bonds in starch that is stored in their own muscles.

Which of the following statements regarding feedback inhibition is true?

	a.	Enzyme activity is inhibited when concentrations of the reaction product is high
	b.	Feedback inhibition does not occur in reactions involved in energy metabolism
	c.	Feedback inhibition is not caused by allosteric regulation of enzymes
	d.	Feedback inhibition increases the activity of enzymes
	e.	Enzyme activity is inhibited when concentrations of the reaction product is low

You clone a genetically-modified plant that has increased expression of amylase in the roots of a raspberry plant. What would you expect to occur?

	a.	Pressure would increase in phloem near fruit cells
	b.	Pressure would increase in phloem near leaf cells
	c.	Pressure would increase in the phloem near all cells
	d.	Pressure in the phloem would not be affected
	e.	Pressure would increase in phloem near roots cells

A plant is grown in soil depleted in magnesium and potassium, but rich in phosphorous and available ground water. Which if the following would occur?   

	a.	Roots will grow deeper
	b.	Roots would shorten
	c.	ATP synthesis would be impaired
	d.	Impaired chlorophyll synthesis
	e.	B and D are correct

Plants and fungi have a symbiotic (mutually beneficial) relationship in that fungi provide __________ to plants, and plants provide ___________ to fungi.

	a.	Sugars; nitrogen and phosphorous
	b.	Nitrogen and phosphorous; sugars
	c.	Amino acids; enzymes
	d.	Plants only have a symbiotic relationship with bacteria
	e.	Enzymes; amino acids

You are growing Brassica rapa plants in the lab. A mutation is introduced into a subset of plants that impairs mitochondrial function in cells. Which of the following pathways of cellular respiration would be affected?

	a.	Glycolysis
	b.	Pyruvate processing
	c.	Citric acid cycle
	d.	Electron transport chain
	e.	B, C, and D are correct

Which of the following statements regarding noncyclic electron flow (the Z-scheme model) and cyclic electron flow are correct?

	a.	Plastocyanin serves as an electron donor to P700 pigments in photosystem I in both noncylic and cyclic electron flow
	b.	Water serves as an electron donor to P680 pigments in photosystem II in both noncylic and cyclic electron flow
	c.	ATP is produced on both noncylic and cyclic electron flow
	d.	NADPH is not produced in cyclic electron flow
	e.	All of the above are true

Answer 1

1. E

Sugar synthesized by the process of photosynthesis which is an anabolic process. They are broken down into carbon dioxide and water by cellular respiration which is a catabolic process.

These Sugars are broken down for the release of ATP in aerobic respiration. ATP is used by the cell to perform all its metabolic activities.

They can also undergo fermentation in the deficiency of oxygen for the regeneration of NAD+.

They can also be used for the building of polymers like starch and cellulose. Starch is a storage polysaccharides and cellulose is a structural polysaccharide of plants.

2. C

Amylase is an enzyme which is responsible for the breakdown of starch into glucose monomers. If the bird not expressing with enzyme, then it will not be able to break down starch.

First option is incorrect because the enzyme present in all the animals. Second option is incorrect because it is responsible for Breaking Down starch not for the synthesis or breakdown of glycogen.

According to guideline, only first question can be answered. Please give a good rating.