Moth Behavior and Plant Responses

The video explains phototaxis, the movement of organisms in response to light, using moths as an example of positive phototaxis and cockroaches as an example of negative phototaxis. It also covers thigmotropism in vines, where tendrils respond to touch by releasing phytohormones, causing them to curl around objects for support.

What is the term for the automatic movement of organisms in response to light?

• Photosynthesis

• Phototaxis

• Photophobia

• Phototropism

Which of the following is an example of negative phototaxis?

• Moths

• Butterflies

• Fireflies

• Cockroaches

How do some migratory moths use light in their navigation?

• They are attracted to sunlight

• They avoid light sources

• They follow streetlights

• They use the Moon as a reference point

What part of the moth's body senses light and sends information to the brain?

• Wings

• Legs

• Antennae

• Eyes

What is the role of the brain in a moth's movement towards light?

• It processes light information and sends responses to wing muscles

• It changes the color of the moth

• It makes the moth fly away from light

• It blocks the light

Why do vines need to use other objects for support?

• They are attracted to light

• They grow too fast

• They lack sturdy trunks

• They are too heavy

What is the term for the response of tendrils to touch and pressure?

• Phototropism

• Thigmotropism

• Hydrotropism

• Geotropism

What chemical is pumped into cells during thigmotropism?

• Chlorophyll

• Oxygen

• Auxin

• Glucose

What happens to the cells furthest from the object during thigmotropism?

• They die

• They change color

• They swell

• They shrink