Plant coordination (Upper Sixth Science Biology)

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Test your knowledge on the fascinating world of tropisms in plants!

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Plant coordination (Upper Sixth Science Biology)


Froggy Jumps Plant coordination (Upper Sixth Science Biology)Versión en línea Test your knowledge on the fascinating world of tropisms in plants! por YAKILI LMS 1 What is phototropism? a Growth of a plant towards gravity. b Growth of a plant towards water. c Growth of a plant towards light. 2 Which type of tropism responds to chemicals? a Chemotropism. b Thigmotropism. c Hydrotropism. 3 What does geotropism refer to? a Growth response to light. b Growth response to gravity. c Growth response to touch. 4 Thigmotropism is primarily associated with which stimulus? a Light. b Water. c Touch. 5 Hydrotropism is the growth response to what? a Water. b Light. c Gravity. 6 Which type of tropism helps roots grow downwards? a Geotropism. b Thigmotropism. c Phototropism. 7 What is the main purpose of phototropism? a Maximize water absorption. b Enhance nutrient uptake. c Maximize light absorption for photosynthesis. 8 Which plant part typically exhibits hydrotropism? a Stems. b Roots. c Leaves. 9 Thigmotropism is commonly observed in which type of plants? a Aquatic plants. b Desert plants. c Climbing plants. 10 What triggers chemotropism in plants? a Chemical gradients. b Temperature changes. c Soil composition. 11 What is the primary role of auxins in plants? a To promote cell elongation. b To inhibit growth. c To absorb water. 12 Which part of the plant primarily produces auxins? a The leaves. b The tips of stems and roots. c The flowers. 13 How do auxins affect cell walls? a They loosen cell walls, allowing elongation. b They harden cell walls. c They prevent cell division. 14 What is phototropism? a Growth response to water. b Growth response to gravity. c Growth response to light influenced by auxins. 15 What effect do auxins have on apical dominance? a They promote apical dominance by inhibiting lateral bud growth. b They encourage lateral growth. c They have no effect. 16 Which auxin is commonly studied in plant biology? a Indole-3-acetic acid (IAA). b Cytokinin. c Gibberellin. 17 What happens to auxin levels on the shaded side of a plant? a Auxin levels remain the same. b Auxin levels increase, causing elongation. c Auxin levels decrease. 18 What is the effect of auxins on root growth? a Auxins inhibit root growth. b Auxins have no effect on roots. c Auxins promote root elongation. 19 How do auxins influence cell division? a They have no influence. b They inhibit cell division. c They stimulate cell division in the cambium. 20 What is the term for the uneven distribution of auxins? a Auxin gradient. b Auxin balance. c Auxin flow. 21 What is geotropism? a The growth response to water. b The growth response to light. c The growth response of a plant to gravity. 22 Which part of the plant is primarily responsible for sensing gravity? a Leaf blade. b Stem tip. c Root cap. 23 What theory explains how root caps inhibit growth on the upper side? a Expansion theory. b Attraction theory. c Inhibition theory. 24 How do auxins affect root growth in geotropism? a They promote elongation on the lower side. b They inhibit growth on the lower side. c They have no effect on roots. 25 What happens to roots when they grow downward? a They experience negative geotropism. b They stop growing. c They experience positive geotropism. 26 What is the role of statoliths in root caps? a They store nutrients. b They absorb water. c They help in sensing gravity. 27 Which hormone is primarily involved in geotropism? a Cytokinin. b Auxin. c Gibberellin. 28 What effect does gravity have on auxin distribution in roots? a It causes auxin to accumulate on the lower side. b It has no effect on auxin. c It causes auxin to disperse evenly. 29 What is the primary function of the root cap? a To store energy. b To absorb nutrients. c To protect the growing tip and sense gravity. 30 Inhibition theory suggests that root growth is inhibited where? a In the root cap. b On the upper side of the root. c On the lower side of the root. 31 What defines short day plants? a They flower with more than 14 hours of daylight. b They flower when daylight is less than 12 hours. c They do not rely on day length. 32 Which type of plant is unaffected by day length? a Short day plants. b Long day plants. c Neutral day plants. 33 What is a characteristic of long day plants? a They flower with less than 10 hours of daylight. b They flower when daylight exceeds 14 hours. c They do not flower at all. 34 Which plant type typically flowers in late spring or summer? a Long day plants. b Neutral day plants. c Short day plants. 35 What triggers flowering in short day plants? a Long nights. b High temperatures. c Short days. 36 Which of the following is an example of a short day plant? a Lettuce. b Spinach. c Chrysanthemum. 37 What is the primary factor influencing flowering in long day plants? a Soil moisture levels. b Temperature fluctuations. c Increased daylight duration. 38 Which plant type can adapt to varying day lengths? a Neutral day plants. b Long day plants. c Short day plants. 39 What is the role of phytochrome in plants? a It helps plants detect light duration. b It absorbs water. c It stores nutrients. 40 Which plant type is likely to flower in fall? a Short day plants. b Neutral day plants. c Long day plants. 41 What are phytochromes primarily responsible for in plants? a Regulating plant growth and development in response to light. b Photosynthesis only. c Water absorption. 42 Which light wavelengths do phytochromes primarily absorb? a Red and far-red light. b Green and yellow light. c Ultraviolet and blue light. 43 What is the inactive form of phytochrome called? a Pr. b Pq. c Pfr. 44 What happens when phytochromes absorb red light? a They initiate photosynthesis. b They convert from Pr to Pfr. c They become inactive. 45 How do phytochromes affect seed germination? a They have no effect. b They inhibit germination. c They promote germination in response to light. 46 Which process is influenced by phytochromes in plants? a Respiration. b Photoperiodism. c Transpiration. 47 What role do phytochromes play in flowering? a They prevent flowering. b They help determine the timing of flowering based on light exposure. c They only affect leaf growth. 48 What is the active form of phytochrome known as? a Pr. b Pq. c Pfr. 49 Phytochromes can influence which of the following? a Shade avoidance response. b Nutrient uptake. c Root depth. 50 Which plant hormone's action can be mediated by phytochromes? a Ethylene. b Gibberellins. c Auxins.

Plant coordination (Upper Sixth Science Biology)

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Plant coordination (Upper Sixth Science Biology)Versión en línea

por YAKILI LMS

What is phototropism?

Which type of tropism responds to chemicals?

What does geotropism refer to?

Thigmotropism is primarily associated with which stimulus?

Hydrotropism is the growth response to what?

Which type of tropism helps roots grow downwards?

What is the main purpose of phototropism?

Which plant part typically exhibits hydrotropism?

Thigmotropism is commonly observed in which type of plants?

What triggers chemotropism in plants?

What is the primary role of auxins in plants?

Which part of the plant primarily produces auxins?

How do auxins affect cell walls?

What is phototropism?

What effect do auxins have on apical dominance?

Which auxin is commonly studied in plant biology?

What happens to auxin levels on the shaded side of a plant?

What is the effect of auxins on root growth?

How do auxins influence cell division?

What is the term for the uneven distribution of auxins?

What is geotropism?

Which part of the plant is primarily responsible for sensing gravity?

What theory explains how root caps inhibit growth on the upper side?

How do auxins affect root growth in geotropism?

What happens to roots when they grow downward?

What is the role of statoliths in root caps?

Which hormone is primarily involved in geotropism?

What effect does gravity have on auxin distribution in roots?

What is the primary function of the root cap?

Inhibition theory suggests that root growth is inhibited where?

What defines short day plants?

Which type of plant is unaffected by day length?

What is a characteristic of long day plants?

Which plant type typically flowers in late spring or summer?

What triggers flowering in short day plants?

Which of the following is an example of a short day plant?

What is the primary factor influencing flowering in long day plants?

Which plant type can adapt to varying day lengths?

What is the role of phytochrome in plants?

Which plant type is likely to flower in fall?

What are phytochromes primarily responsible for in plants?

Which light wavelengths do phytochromes primarily absorb?

What is the inactive form of phytochrome called?

What happens when phytochromes absorb red light?

How do phytochromes affect seed germination?

Which process is influenced by phytochromes in plants?

What role do phytochromes play in flowering?

What is the active form of phytochrome known as?

Phytochromes can influence which of the following?

Which plant hormone's action can be mediated by phytochromes?