Gen Bio Lab

Which of the following statements are correct? Check all that apply.

• The images show cells with amyloplast, which is a type of ergastic substance.

• This specimen is the lower epidermis of boatlily leaves.

• The width of the condenser lens aperture used to observe the images from narrowest to widest: C, A, B.

• When the iris diaphargm is widen, the image contrast is decreased.

What is the wavelength of fluorescence occurring in the tube of pigment extracts?

• 400-450 nm

• 500-580 nm

• 650-700 nm

• 400-450 nm and 650-700 nm

Which of the pigments is most soluble in organic solvent?

• Chlorophyll a

• Chlorophyll b

• Carotene

• Xanthophyll

• Anthocyanin

According to our laboratory results, which of the pigments has the lowest Rf value?

• Chlorophyll a

• Chlorophyll b

• Carotene

• Xanthophyll

• Anthocyanin

In the experiment with Hydrilla verticillata in NaHCO3 solution, the results were recorded in the table. Which of the following is true? Check all that apply.

• a > b

• c > d

• e = O2

• e = CO2

What is the gas in A? What process(es) is (are) occurring in the yeast cells below A?

• Glycolysis / O2

• Glycolysis / CO2

• Glycolysis + Krebs cycle / O2

• Glycolysis + Krebs cycle / CO2

What would happen if NaF is added?

• The gas volume in A and ATP generated in B are increased.

• The gas volume in A and ATP generated in B are decreased.

• The gas volume in A is increased, but ATP generated in B is decreased.

• The gas volume in A is decreased, but ATP generated in B is increased.

Select all that are true.

• The cells are in hypotonic solution.

• Before adding KCl to the cells, water potential of the KCl solution is lower than water potential inside the cells.

• No. 1 is the vacuole.

• No. 2 is the plasma membrane.

• No. 3 is the cytoplasm.

Which of the following statement is true? Select all that apply.

• Guttation is the loss of water in the form of droplet.

• Hydathode is the opening at the end of phloem.

• Tomato seedlings in Pot 1 were not wilted because the water potential of the soil solution equals 0.

• In Pot 3, the pressure potential in the root cells after being watered with 40% urea was lower than before the fertilizer treatment.

According to the picture, the plant on the left is likely lacking .... nutrients, such as .....

• mobile / Fe

• immobile / Fe

• mobile / N

• immobile / N