Describe how phytochrome allows a lowering plant to detect the photoperiod.

Q: Which of the following is false about the phytochrome protein?a. There are two convertible forms.b.…

A: Phytochrome is a growth hormone which regulates the growth, metabolism of the plant. It senses the…

Q: Discuss the importance of the phytochrome system.

A: Phytochrome system helps the plants to sense and regulate their physiology according to the level,…

Q: Does the Initial Uptake of Water by Seeds Depend onTemperature?

A: The transport of water, molecules, and ions in the living system are by the process called…

Q: Sketch observations of monocot stem vascular bundle. Label xhlem, phloem, sieve-tube member,…

A: Introduction  Monocot stems have a circular form, lateral branches, and a layer of the dermis…

Q: Which parts of the plant would you find the phytochromes highly concentrated? Why? *

A: Phytochromes  It is a photoreceptor, a pigment that plants and some algae and fungi use to detect…

Q: Describe the structure of a pollen grain.

A: The powdery substance synthesized by the seed plants which is responsible for the production of the…

Q: Discuss the factors responsible for ascent of xylem sap in plants.

A: The ascent of water in the xylem is caused by the transpirational pull of the atmosphere. It is…

Q: Explain the role of pollen grain ?

A: Pollen grains are the minute structures present in the anther of the plant. The main role of the…

Q: Explain the conversion cycle of phytochrome.

A: Photopigment(commonly called chlorophyll) is a light absorbing molecule present in membrane bound…

Q: What is vegetative propagation? Give two suitable examples.

A:

Q: Identify the potential role of phytochrome in plant flowering.

A: Phytochrome is a special type of photoreceptor found in plants, fungi as well as certain bacteria.

Q: Explain how phytochrome is afected by red wavelengths of light.

A: Plants are the primary producer of nature. They absorb the environmental light conditions by the…

Q: Explain what phytochrome is and how it functions

A: Photoperiodism is the effect or requirement of relative length of day and night on flowering.  The…

Q: Draw illustrations to bring out the anatomical difference between(a) Monocot root and Dicot root(b)…

A: Monocot Root – in monocot root the cortex is wide and the outer cortex is differentiated into…

Q: Develop a hypothesis that explains why it might be adaptive for aplant to flower in response to…

A: Weather pattern can vary from climate to climate so sometimes temperatures during certain years…

Q: Match the response with its main trigger. ___ phototropism                a. contact with an object…

A: phototropism - blue light gravitropism - gravity thigmotropism - contact with an object

Q: Describe the role of phytochrome in flowering, including a brief discussion of phytochrome signal…

A: Phytochromes belong to photoreceptors, which function to detect light in fungi, plants, and…

Q: Write the functions of phytohormones.

A: phytohormones:  They are the chemical messengers which coordinated the cellular activities .They…

Q: If a long-day plant has a critical night length of 9 hours, which 24-hour cycle would prevent…

A: The plants' response towards light and dark periods of a day is called photoperiodism. The variation…

Q: Draw a well labeled diagram of longitudinal section of pistil showing pollen germination?

A: In a plant flower act as a reproductive part. Carpel is a female reproductive organ of flowering…

Q: Is this part of the shoot system or the root system? Expl used to describe it.

A: Root system forms the roots that grows Underground  to absorb water and Minerals from the soil and…

Q: Studies of phototropism often use which part of an oat seedling: _________________?

A: Phototropism is the growth of an organism in response to a light stimulus. Phototropism is most…

Q: What would happen if you gave these plants a brief exposure to darkness in the middle of the…

A: Phytochrome is a receptor in a plant that accepts the red and far-red light coming from the sun. It…

Q: If a short-day plant has a critical night length of 15 hours, then which of the following will…

A: The short-day plant with a critical night length of 15 hours typically uses a straight 15-hour…

Q: What are the TWO (2) light regions detected by phytochromes and identify photoreceptor responsible…

A: Question: What are the two light regions detected by phytochromes? Phytochromes: These are the class…

Q: Identify the response of pollen tube movement towards ovule. A. autotropism B. phototropism C.…

A: As per our guidelines we are supposed to answer only ? One question ( if there are multiple…

Q: What is seed dormancy? Why is it good?

A: In terms of a species' survival, the seed is a crucial stage in the higher plant life cycle. It is…

Q: Draw and classify the inflorescence of BATAO FLOWER

A: The male and female parts of a plant are combined in the flower, which is the reproductive component…

Q: What are the morphological differences between darkand light-grown plants? Explain how etiolation…

A: Etiolation can be defined as a process taking place in flowering plants that are grown in the…

Q: Give five differences of shoot apex of monocot vs shoot apex of dicot

A: The apical meristem, developing leaves, and the immediate surrounding leaf primordial make up the…

Q: Why is light important in the production of new plants from cuttings?

A: Plants are mainly multicellular organisms that are predominantly eukaryotic and photosynthetic and…

Q: What is the phenomenon wherein the plant grows toward the unidirectional light?   Photoperiodism…

A: Phototropism is correct answer. The phenomenon wherein the plant grows toward the unidirectional…

Q: Compare the structures of the Lilac (Syringa) Leaf Cross-Section, Monocot Leaf Cross-Section and…

A: A dicot Liliac  (Syringia- dorsiventral leaf) and monocot leaf (Corn - isobilateral leaf) differs…

Q: Explain why tropical plants are often not sensitive to photoperiodic flowering cues.

A: Flowers include a plant's reproductive components. Pollen is produced by the male portions of the…

Q: compare the taproot, fibrous, and adventitious roots

A: There are three types of root- tap roots, fibrous roots and adventitious roots. These roots are…

Q: How will global climate change impacy plants that strictly respond to their environment through…

A: Global climate change impacts plants that respond to their environment through photoperiodism in the…

Q: What happens if plants encountered multi-directional stimulus?

A: Light, gravity, weather, and touch are only some of the environmental stimuli that the plant reacts…

Q: Dicot stem and Monocot Stem

A: As we know that, Monocot stem is a circular shaped hollow axial part of the plant which gives rise…

Q: What are the different agents for seed dispersal, discuss each and give example.

A: The seed is the component of the plant that contains the growing embryo that, given the right…

Cell Signaling

It allows cells to perform various cellular activities, coordinate, and interact with other cells. All cells of an organism receive signals from their environments and respond accordingly. Even the unicellular eukaryotes receive signals secreted by other cells and respond. In the case of yeast, mating takes place by signaling between the yeast cells. Communication by cell signaling in a multicellular organism has become a vast and important part of various fields of biology.