plant physiology

“Some aquatic insects such as the water strider can stand, walk or run on water without breaking the surface”

What is the water properties based on the statement above?

• Maximum density at 4° C

• High surface tension

• Universal solvent

• Low viscosity

Simplastic movement of water takes place through

• The cell walls

• The plasmodesmata

• The casparian strips

• Through endodermis

Root pressure due to

• Active absorption

• Passive absorption

• Increased turgidity

• Increased transpiration

Which of the following statements is false about nutrition?

• Nitrogen and phosphorus are macronutrients.

• Plant hormones are nutrients.

• Manganese and Molybdenum are micronutrients

• Nutrition provides energy for carry out various functions.

Based on the diagram above, what is the nutrient deficiency shown by the plant?

• Iron

• Boron

• Magnesium

• Nitrogen

Which of the following minerals is required for the synthesis of chlorophyll?

• Potassium

• Nitrogen

• Copper

• Iron

 Plant absorbs  N2 in the form of

• Nitrites

• Nitrates

• Ammonium

• All of these

Plant cannot absorb molecule N2 in the atmosphere because

• N2 has double bonds making it highly stable.

• Abundance in the atmosphere inhibits absorption.

• N2 has triple bonds making it highly stable.

• None of these.

In which organism(s) does photosynthesis occur?

• Plant

• Some bacteria

• Algae

• All of these

Chloroplast absorb light energy and convert to chemical energy. This statement is true or false?

• True

• False