Which of the following plant hormones is produced in the root meristems, travel upward and in higher concentration counter the apical dominance caused by ____________?   a. Gibberellins   b. Ethylene   c. Cytokinin   d. Abscisic acid

Q: The orientation of plant growth in the direction of light is called: a. Thigmotropism b.…

A: Plants are multicellular living entities that can be found practically anywhere on the planet. They…

Q: If you exposed seeds to a series of red light versus far-red light treatments, which of the…

A: Introduction: To absorb light, plants have specific pigments called phototropin and phytochrome.…

Q: The arrival of pollen grains on a receptive stigma is called_____ . a. germination c. pollination b.…

A: Step 1 Pollen grains represent the male reproductive propagule or young male gametophyte which is…

Q: Gaseous hormones are able to enter cells without requiring specialmembrane transporter. Which of the…

A: Plant hormones are some chemical compounds that are present in very low amount in plant body.  They…

Q: Which one of the plant growth regulators would you use if you are asked to:(a) induce rooting in a…

A: Plant growth promoters are substances that regulate the growth in plants. These substances enhance…

Q: Choose, Which part of the plant is not included in the shoot systems of plants?  a, stem b, leaves…

A: According to guidelines we have to answer the first question only. so please kindly post the…

Q: During plant development, the leaves and the flowers of the plant are derived from a. the central…

A: Meristematic tissue  These are undifferentiated, rapidly dividing plant cells found on the top of…

Q: Flower shape and color can be linked to the process ofa. pollination.b. photosynthesis.c.…

A: Flower  It is the main reproductive organ of angiosperms. It is modified from leaf. It have 4 parts,…

Q: Which combination of hormones is best for promotingthe formation of lateral roots from pericycle?a.…

A: In root and shoot formation of plant, auxin play a very important role. Internal and external…

Q: This hormone’s activity counters many of the growth-promoting effects of other hormones. A.…

A: Auxin, abscisic acid, ethylene, gibberellic acid, cytokinins, salicylic acid, strigolactones,…

Q: The seed coat forms from the______ . a. integuments c. endosperm b. coleoptile d. sepals

A: A fruit is a mature ovary and its related parts. It typically contains seeds, which have created…

Q: When you prune shrubs to make them “bushier”—that is, to prevent apical dominance—you are affecting…

A: The growth of the plant is directly influenced by the chemicals called phytohormones or plant…

Q: The integuments of an ovule will develop into the a. embryo. b. endosperm. c. fruit. d. seed…

A: The integuments are the protective envelope that surrounds the ovule body. Based on integuments…

Q: which of the following best describes the seeds of dicots? a. the seeds produce only one cotyledon…

A: Seed is a fertilized matured ovule consisting of an embryo enclosed by protective seed coats. The…

Q: Some plant hormones oppose the effect of each other. Auxins and cytokinins for example. Whereas…

A: When two hormones have opposite effects from each other, it is called antagonistic effects. There…

Q: Match the hormone with the description. ___ ethylene                 a. efflux carriers set up…

A: nitric oxide - active in bursts cytokinin - works antagonistically to auxin in apical dominance…

Q: Endosperm is completely consumed by the developing embryo in: (a) pea and groundnut (b) maize and…

A: BASIC INFORMATION  ENDOSPERM  It is formed during the fertilization process when the male gamete…

Q: How would a loss-of-function mutation in the α-amylase gene affect seed germination? a. The seed…

A: α-amylase: It is an enzyme that hydrolyses alpha bonds of alpha linked polysaccharides, such as…

Q: Examples of plant hormones includea. cyclic AMP, IP3, and calcium ions.b. calcium, CDPKs, and DELLA…

A: Plant physiology is a field of botany that deals with the study of the physiology of plants. Plant…

Q: Ethylene respond synergistically with another plant hormone ‘X’ for promoting shedding of leaves,…

A: Ethylene is the gaseous plant hormone and is synthesized by many plant organs.  It is later released…

Q: It is the hormone which is responsible for stem elongation. *         a. Gibberellins       b.…

A: Plant hormones: a. It is an endogenous organic compound that is produced at very low concentrations…

Q: Which of the following statements about phototropism is/are not true? A. Red light is the most…

A: Phototropism is the growth of the plants or cell elongation towards the blue light in response to…

Q: Which of the given plant hormone will be more abundant in dormant buds and seeds? a.Gibberellin…

A: Plant hormones regulate nearly every aspect of plant growth and environmental reactions on the…

Q: It was observed during the early 20th century that the abscission zone of leaves of tree growing…

A: Solution Weakening of abscission zone was caused by ethylene ( gaseous plant growth regulator).…

Q: Some plants are recognized by fungal pathogens on the basis of their stomatal pores. Which of the…

A: Stomata, surrounded by pairs of guard cells are located mainly on the epidermal layer of the leaf…

Q: The phloem of a cactus send hormones to areoles, structures that will develop in to flowers. During…

A: According to the question, we have to mention the name of the system the phloem works in conjunction…

Q: Which title best describes the research paper? O A. Effects of Substance A and B to the growth of…

A: These are multiple choice questions.

Q: In the mistletoe/cactus/bird paper, which of these was a response of the cactus to mistletoe seed…

A: Bees, which consume the berries and defecate on tree roots, disperse the majority of mistletoe…

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: A decrease in the level of which hormone releases seeds from dormancy? a. abscisic acid b. cytokinin…

A: Plant hormones are the synthetic compounds which are blended by plants normally during the metabolic…

Q: What happens when a stem is positively tropic to a certain stimulus? a. Auxins will respond by…

A: There are basically two main types of tropisms as follows: Positive tropisms - in this case the…

Q: colour change in the fruit and an increase in its sweetness is due to  a. the plant hormone…

A: Fruit ripening Fruit ripening is defined as a stage in the maturation of the productive part of the…

Q: experiment. Based on your understanding of phototropism, provide predictions about the direction of…

A: Phototropism is the directional movement of plants towards the light source. In general, roots move…

Q: Please clearly type the answer the all of the parts to this question please (a) Explain what…

A: The reproductive development of plants is influenced by temperature, sunlight and weather. The…

Q: If a farmer wanted less tightly packed clusters of grapes, he would most likely spray the immature…

A: Plant hormones are the organic compounds that are synthesized by the plants, and that promote or…

Q: Which of the following is false? A. Oak trees have flowers B. Gymnosperms make pollen C. Ferns…

A: Oak trees produce both male and female flowers is true. Gymnosperms have pollens but no flowers,…

Q: Ethylene promotes A. production of female flowers B. fruit ripening C. promotion of abscission of…

A: Ethylene is a gaseous hormone which is present in plants. It is produced by all higher plants. It is…

Q: Please answer the following parts: (a) Explain what Florigen is. (b) Explain how the floral…

A: In plants, all aspects of plant growth and development are controlled by the signal molecules. The…

Q: . This hormone’s activity counters many of the growth-promoting effects of other hormones. A.…

A: Introduction:- Auxin, gibberellin (GA), cytokinin, ethylene, and abscisic acid are the five families…

Q: A plant mutant that shows normal gravitropic bending butdoes not store starch in its plastids would…

A: Gravitropism refers to the growth of a plant in response to gravity. It could be negative or…

Q: choose which statement about plants is false? a, plants do not carry out cellular respiration. b,…

A: Plants are the green photosynthetic eukaryotic organism which are divided into two parts. The two…

Q: 18.It stimulates biochemical activities that cause observable physiological responses by organisms.…

A: 18. Hormone  A hormone is any member of a class of signaling molecules in multicellular organisms,…

Q: A seedling germinating under a stone grows at an angle away from the stone and upward. This response…

A: Plant developments can be characterized as the progressions in the spatial direction or adaptation…

Q: Plant development is influenced by: A. quality of light only B. quality and quantity of…

A: PHOTOSYNTHESIS:   It is the process of making food in the green plants with the help of sunlight,…

Q: Match the hormone with the observation. ___ ethylene                   a. Your cabbage plants form…

A: Introduction  Plant hormones are chemical compounds found in plants at extremely low concentrations.…