1. A short-day plant flowers only when exposed to light for less than 12 hours long. Which of the following would cause the plant to flower a 12-hour day and 12-hour night with a flash of red light b. an 8-hour day and 16-hour night with a flash of white light after 8 hours c. 9-hour night and 15-hour day with 1 minute of darkness after 7 hours d. 13-hour night and 11-hour day with 1 minute of darkness after 6 hours e. 24 hours of continuous light

Q: A long-day plant will flower if Select one: O the duration of continuous light is less than a…

A: As recently discovered the amount of light which falls on plants also controls the flowering in…

Q: The medical value of plants is due to chemicals found in a. leaves b. tree bark c. flwers d.…

A: Medicinal value of plants.

Q: long day plant is given a long night, and is interrupted by a light pulse in the middle of the…

A: Plants respond to specific light signals, including the duration and quality of light, a process…

Q: 3. The water-use requirement for vegetatively-growing legume crops generally is that for…

A: The crop type has an influence on the daily water needs of fully grown crops.

Q: How many pounds of seed is required to meet 55 pounds of pure live seed? b. How many pounds of…

A: For the sake of simplicity, let us give notation for different types of seeds. Kentucky Bluegrass is…

Q: 8. Which of the following is an example of imbibition?. a. uptake of water by root. b. exchange of…

A: The term imbibition is the adsorption of water by hydrophilic colloids. It occurs due to the…

Q: 1.    Cell turgor allows the movement of nutrients to the different parts of the plant. a.    true…

A: Turgor pressure is the hydrostatic pressure exerted by the plant cell that pushes the cell membrane…

Q: 1. What is the source of primary tissues in: a. Monocot root b. Dicot root 2. What is the source…

A: Monocot roots are fibrous, meaning they frame a wide network of lean roots that begin from the stem…

Q: Choose the best answer for following question It causes leaf abscission. a. auxin…

A: The abscission process takes place as three events- resorption, protective layer formation and…

Q: A If the auxin concentration in A is 46 units and the auxin concentration in B is 33 units then the…

A: Plants respond to stimuli by producing chemical compounds called hormones that work as messengers.…

Q: A plant has 24 chromosomes in microspore mother cell. The number of chromosomes in its endosperm…

A: Microspore mother cell is the diploid cell present in plants that give rise to four haploid…

Q: What is the problem with weed seed? Select one: a. other color b. bad smell c. low moisture…

A: Weeds are any type of plant that is not sown and grow where they are not wanted. They are like any…

Q: Which of the following is an effective plant defense against insect herbivory? Select one: a.…

A: In plant science, proteinase inhibitors are a group of little proteins that serve an indispensable…

Q: a green plant is kept in a brightly lighted area 48 Hours what will happen if the light intensity is…

A: Plants are autotrophs because they are not dependent on other organisms for food, they are capable…

Q: 1. Why do plants grow tall and spindly when grown under insufficient light? Explain. (auxins,…

A: Plant hormones, or phytohormones, are small molecules that act as chemical messengers in plants.…

Q: How do plants protect themselves from pathogens? I. They have specialized cells and antibodies that…

A: Immunity is the ability to defend or fight against any invading pathogen. Plants have a distinct…

Q: Choose the one answer that fits best. Which of the following is NOT true with respect to plant…

A: Plants come under the category called kingdom ‘Plantae’. They are referred to as living organisms…

Q: 8 Why did the family put a purple light in the greenhouse instead of a bright white light? F. The…

A: A greenhouse refers to a structure having walls and a roof made mainly of clear glasses. This…

Q: How do plant react to certain change like irritation/sensitivity

A: The sensation is one of the capacities shown by a residing creature to keep up with its life, where…

Q: In the Philippines, owners and managers of plant nurseries have to plan lighting schedules for a…

A: In long day plant to be grown in the shorter days light has to be made available.The light needs to…

Q: with spines b. with thorns c. with stinging trichomes d. with cutin or waxy leaves  Plants to…

A: Physical defense are a first line of protection for some plants. These defense make it challenging…

Q: Which of the following is considered essential for germination? Select one: a. Abscisin b.…

A: Germination is vital event in plants, in which plantlet are arise from seed on the onset of…

Q: What are differences between summer and winter melons? (select all that apply) summer are…

A: Melons are categorised into two groups based on the season: summer melons and late or winter melons.…

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: Grass plants elevate their leaves to compete for light without exposing their shoot apical meristems…

A: 1. growing their leaves from persistent Meristematic zones at the leaf base.

Q: pine trees that are too tall or too short do not do so well a pine trees that are average height.…

A: Adaption is process in which organisms change their habits to gradually live in a particular…

Q: attract pollinators a. defend against herbivorous animals strengthen the cell wall Oc. promote fruit…

A: Role of secondary chemical compounds are 1) protection against harmful environmental conditions…

Q: 1. Using the triangular and square methods of planting, determine the number of coconut planting…

A: Triangular Method: In this method, the seedlings are planted at a certain distance, forming…

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: if you plant a munggo seen in a box with small amount of light entering it, what will be the…

A: Munggo is a mung bean, a small green legume commonly used in Southeast Asian cuisine. It can be…

Q: a. Use rubisco to fix carbon dioxide b. Fix carbon dioxide twice c. Conduct the light reactions and…

A: Photorespiration is a wasteful pathway that is present in plants during which the carbon fixing…

Q: 5. A gardener tests a new plant food by planting seeds from the same package in the same soil and…

A: Given: Seeds were planted from the same package in the same soil and location. Same amount of water…

Q: 11. In the leaves of most plants, where can chloroplasts be found? in the upper epidermis and…

A: Chloroplast is an double membrane bound organelle that plays a major role in photosynthesis.…

Q: The apical bud of a plant produces which inhibits lateral bud growth through the process known as…

A: Plant hormones are the molecules produced by the plants which help in the growth and development of…

Q: on the right side of a plant. Choose the statement that best describes the plant growth towards the…

A: The questions are related to reproduction. The production is the process by which an individual is…

Q: Spraying a plant with which of the following will increase axillary bud growth? Strigolactone…

A: Plant hormones can be referred to as crucial biochemicals that influence plant development and crop…

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: Poison is (Toxicodendron radicans) occurs as a weak free-standing shrub (that can reach 0.5m in…

A: The roots of vascular flowers are changed organs that offer anchoring for the plant and soak up…

Q: . Flowers differ in how much sunlight they absorb. Whymight this matter to a hummingbird seeking…

A: Hummingbird belongs to the biological family Trochilidae. It is endemic to America.

Q: Which of the following can be sensed by plants? 1. Gravity 2. Herbivores 3. Wind 4. Light Select…

A: The plant is a living organism that grows and present abundantly on land. It can sense few things.

Q: Pin and thrum flowers are designed to: O a. Prevent the flower being fertilised by its own pollen. O…

A: Pin flowers have long styles and short stigma. Thrum flowers have short styles and long stigma. Some…

Plant sensory system

The plant sensory system is a sophisticated system that responds to environmental stimuli such as light,temperature, gravity, and touch. Research predicts that plant hormones and signaling mechanisms areresponsible for this regulation system in plants.