E. coli cells were spread on an agar plate, producing 1000 colonies.  The colonies are replica plated on two agar plates containing the antibiotic kanamycin and one agar plate without antibiotics.  All of the colonies are able to grow on the agar plate without antibiotic but only 4 colonies are able to grow on each of the agar plates containing kanamycin.  You notice that the four colonies that grew on each of the kanamycin containing plates are in the exact same position.  This demonstrates

#Question id: 10196

#Unit 6. System Physiology – Plant

Why are light compensation points lower for shade plants?

#Question id: 10197

#Unit 6. System Physiology – Plant

Light compensation point found at which;

#Question id: 10198

#Unit 6. System Physiology – Plant

The response of photosynthesis to light in a C3 plant some given effect shows in dark as well as in the light, which of the following effect is not true?

#Question id: 10199

#Unit 6. System Physiology – Plant

Some differences is found between plants that normally grow in full sunlight and those that grow in the shade given below;

Match the correct combination of column A with the column B;

#Question id: 10200

#Unit 6. System Physiology – Plant

Following are some facts regarding C3 and C4 Plants

a.) In C4 plants the reduction is caused by the additional energy requirements such as 1 ATP per CO2 from C3 plants

b.) C4 leaves are exposed to low O2 concentrations, the quantum yields for CO2 fixation remain constant while C3 leaves are exposed to low O2 concentrations quantum yield increases

c.) C3 leaves are exposed to low O2 concentrations, photorespiration is maximized

d.) Plant with the C4 metabolism need more rubisco than C3 plants to achieve a given rate of Photosynthesis

Which of the following combination would be correct?

#Question id: 10201

#Unit 6. System Physiology – Plant

Chloroplasts orientation in Algae is controlled by