Topic 15.3 - Venus fly trap - advanced

Why does striated muscle tissue produce lactate during strenuous exercise?

• To provide energy for muscle contraction

• To store energy for later use

• To increase ATP production

• To decrease ATP production

What is the role of action potentials in the Venus fly trap's response to touch?

• To increase the tension in the cell walls

• To stimulate the release of digestive enzymes

• To promote the growth of the midrib

• To trigger the closure of the trap

How do auxins stimulate elongation growth in plants?

• By loosening the linkages between cellulose microfibrils

• By increasing the pH of the cell walls

• By promoting the destruction of DELLA proteins

• By activating aquaporins in the cell walls

What is the main function of gibberellins in seed germination?

• To prevent the elongation of the stem

• To reduce the water uptake by the embryo

• To inhibit the synthesis of amylase

• To promote the breakdown of starch

Why do Venus fly traps have adaptations to avoid closing unnecessarily?

• To attract more insects

• To prevent water loss

• To conserve energy

• To increase the speed of digestion

What triggers the closure of a leaf of the Venus fly trap?

• Touch of a fly or other insect

• Change in humidity

• Increase in carbon dioxide concentration

• Presence of water droplets

What is the role of plant growth regulators in communication within plants?

• To regulate the pH of the cell walls

• To transport water and nutrients within the plant

• To promote cell division in the meristems

• To influence the growth and development of plants

How do plant hormones interact with receptors in plant cells?

• By increasing the concentration of potassium ions

• By inhibiting the action of aquaporins

• By initiating a series of chemical or ionic signals

• By promoting the synthesis of ATP

What is the function of the sensitive hairs in the Venus fly trap?

• To stimulate the growth of the midrib

• To detect changes in potential difference

• To promote the release of digestive enzymes

• To attract insects with nectar

What triggers the synthesis of amylase in the aleurone layer during seed germination?

• Increase in carbon dioxide concentration

• Touch of the seed by an insect

• Absorption of water by the embryo

• Presence of sunlight