If the PIN2 gene is rendered non-functional by mutation it dramatically reduces the speed of the gravitropic response in the root. Explain what PIN proteins do and why the loss on PIN2 would likely affect the speed of the gravitropic response.

Q: Cotton plants wilt within a few hours of flooding of their roots. The flooding leads to low-oxygen…

A: The loss of turgidity of the sift aerial, non-woody parts of the plant causing drooping, rolling,…

Q: Explain the role of artificial propagation in agriculture and propagating plants. What particular…

A: Unlike animals, plants have totipotent stem cells in some adult tissues. This is the principle…

Q: To explain the increase in mass of the light-grown plants, identify one inorganic source of new…

A: The inorganic source of new plant cellular mass is Carbon dioxide (CO2).

Q: What region of a root has the most mitotic activity?

A: Flowering plants consists of two major organ systems that is, the root system and the shoot system.…

Q: Describe and explain the results shown in Table 1 and suggest how the results might have differed if…

A: Answer. Auxin is the first plant hormone discovered by the Frits Went as a growth-promoting chemical…

Q: When the roots of a corn (Zea mays) seedling grow downward, is this a negative response to light or…

A: Gravitropism is defined as the growth of plants in response to gravity.  The response is also seen…

Q: During seed germination, the plant hormone which belongs to a large family of terpenoid growth…

A: Plants are organisms with eukaryotic cells having cell walls and are capable of synthesizing their…

Q: When a plant is transplanted or reported ,it will often show signs of water stress , such as wilting…

A: Answer of the question given below...

Q: What causes polar movement of auxinfrom shoot tip to base?

A: Auxins are known as master plant hormones as they influence the structure, development, and behavior…

Q: Discuss other morphological differences between sunny and shady set- ups of mung bean in relation to…

A: Characteristics sunny  shsde Hypocotyl reduced elongated  Flowers enhanced flowers growth…

Q: What is the compensation point? What is the implication of the compensation point for the plant…

A: The compensation (light) point is the intensity of light at which the photosynthetic rate is equal…

Q: Is it true that in the gravitropic response of horizontal roots, high auxin concentration on the…

A: Auxins are responsible for growth of plant by cell division.

Q: Name the two meristems that involved in the secondary growth that is responsible for the increase in…

A: Answer:  In plants, there are two types of meristems : APICAL for root and shoot development and…

Q: rooting hormone

A: Plant growth is highly effected by various living conditions like the air, light, humidity, nature…

Q: Can you answer this question, all of the parts please.  A. Please explain the phenomenon of apical…

A: Apical dominance can be defined as the control exerted by the apical portions of the shoot over the…

Q: Ginger undergoes three (3) stages of Growth. Name and describe the these stages from Germinating…

A: Introduction:- Ginger is a perennial herb. It is used as a spice in many dishes. In Ginger…

Q: Which of the following statements about gravity perception is FALSE? A. Statoliths are specialized…

A: Gravity perception is an important activity in plants as they need to send their roots downwards…

Q: What would the roots look like if GLABRA-2 wererendered dysfunctional by a mutation?

A: Step 1 Glabra-2 is a homeotic gene that is required for appropriate root hair distribution. A…

Q: On a commercial scale, enhancing the level of _______ (hormone) can help to speed up fruit ripening.…

A: A phytohormone is an organic compound of plant origin, produced naturally in minute amount…

Q: To transport water from the root into the shoot does the water potential in the xylem need to become…

A: Water is the most crucial factor for a plant to perform its normal cellular functions. The movement…

Q: How do you think the plant Artemisia vulgaris adapts to the sandy soil? Cite the key structural…

A: Evolution is the process by which an organism inherits or adapts favourable characteristics that…

Q: How is the movement of water through the xylem different from the movement of food through the…

A:

Q: In a germinating seed, the downward growth of roots and upward growth of stems are the plant’s…

A: Answer : In a germinating seed, the downward growth of roots and upward growth of stems are the…

Q: Do mature Zea mays (monocot) stem possess residual procambium? Why?

A: Residual Procambium is formed between primary phloem and primary xylem that remains mitotically…

Q: Why root pressure is seen only under favorable conditions,like spring and rainy season

A: Root pressure is a hydrostatic pressure generated within the cells of the root that causes fluid…

Q: Describe the arrangement of vascular bundles in a cross-section of a Zea mays stem. Are they more…

A: Zea mays, also known as maize, is a species of the grass family Poaceae or true grasses. Zea mays…

Q: What is the precursor of the intercalary meristem? How does the intercalary meristem contribute to…

A: Systematic tissue or meristem is defined as the tissue in which the cells continuously divide for…

Q: In plant physiology, What  is leaf abscission and how is it controlled by the interaction between…

A: Fall leaf abscission is believed to be made by a decrease of chlorophyll due to shortened long…

Q: Explain how auxins, produced in the tips of plant shoots, cause the shoot to bend Furt down the…

A: An auxin, is a plant growth hormone that helps regulate shoot growth. Under normal light conditions…

Q: What type of meristem is shown? what kind of growth do these meristems provide in plants. How is…

A: Meristem is basically a type of tissue found in the plants. Meristems are basically of three types…

Q: A

A: Roots help in the attachment of the plant to the soil. Roots also conduct water and minerals to the…

Q: As plants grow, they tend to align theirstems and roots along the direction of the gravitational…

A: Plants produce certain hormones which help them to respond to external stimuli. This phenomenon is…

Q: Can you answer all the parts to this question please  In shoot apical meristems, the peripheral…

A: Asper guideline the answer is given below. Please repost the rest of the 2 questions.

Q: The buds of certain plants occupy a definite position within the soil or on its surface. This…

A: The roots of vascular plants are specialized organs that provide anchoring for the plant and carry…

Q: clearly type the answers to all the parts to this question please  In shoot apical meristems, the…

A: Hi! Since you have posted more than one question, we will be answering the first part of it for you.…

Q: Discuss which pathway permits the passage of most solutes and water inside the roots? Which pathway…

A: The most simplest and easy pathway of water movement in root is root hair to xylem where the water…

Q: Which of the following plant hormones is produced in the root meristems, travel upward and in higher…

A: The plant hormones is produced in the root meristems, travel upward and in higher concentration…

Q: Which of the following is not a typical plant response to oxygen deficit due to flooding? * A.…

A: Introduction Plants Adapt To Their Ever-changing Environment In A Variety Of Ways, Resulting In A…

Q: Plant Physiology Can a tropic response prevent another tropic response for a certain plant tissue or…

A: The response of directional movement in the plants which occur as a result of response to…

Q: A plant X is grown under certain conditions and the seeds have been supplied. How would one check…

A: Solution-Totipotent cells should have the ability to differentiate in vitro into cells…

Q: Describe the steps in the development of rootnodules on a leguminous plant

A: An infection in the root of plants (leguminous plants) by the species of rhizobia results in the…

Q: Observe the image of roots/roots system of Zea mays Are there special features that you observe?…

A: Zea mays  Zea mays also known as maize or corn, this plant belongs to the family of poaceae. This is…

Q: Is there a rooting hormone that can help multiply plants? What are examples of these?

A: Green Plants are the most important to ever organism living on earth as they capture sunlight and…

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.