Biology Root Words Starting with Ab or Abs

Edited By Irshad Anwar | Updated on Nov 26, 2024 12:47 PM IST

(ab, abs: away, from)

Many root words have the prefixes ab-, abs-, a-, and apo-. These prefixes have the Latin meaning of "away, from," which is where these root words come from.

Examples of Root Words Starting with Ab-, Abs-

A few examples of words that begin with ab, ad, or abs in Biology:

Latest: NEET 2024 Paper Analysis and Answer Key

Don't Miss: Most scoring concepts for NEET | NEET papers with solutions

New: NEET Syllabus 2025 for Physics, Chemistry, Biology

NEET Important PYQ & Solutions: Physics | Chemistry | Biology | NEET PYQ's (2015-24)

Biology Root Words Starting with Ab or Abs

Abscission,
ablation,
adaxial, and
aphasia

What is Abscission?

The word "abscission" comes from the Latin words "ab," which means "away," and "scindere," which means "to cut." It is a cutting-off action or procedure. It is the organic separation of plant components, such as fruit ripening and dropping. It is a biologically defined program of controlled cell separation at the abscission zones (AZs) at certain locations on the plant body. Some phytohormones and environmental elements regulate abscission.

Abscission zone has the following traits:

Their cytoplasm is thick.
They may differ in the cell's composition and have smaller intercellular gaps.
Walls.
They react differently to plant hormones like auxins and ethylene.

NEET Highest Scoring Chapters & Topics

Know Most Scoring Concepts in NEET 2024 Based on Previous Year Analysis

Know More

Mechanism of Abscission

Abscission is one of the important physiological processes and plants that involves the shedding of various organs such as leaves, fruits and flowers. It is also important as it plays a very important role in the development agent and response to the environmental stimuli of the plant. Some important mechanism of Abscission is discussed below:

Type of Abscission	Explanation
General Mechanism	In this process is the breakdown of starch due to a rise in turgor pressure in the different zones of the cells which causes the middle lamela to break. The abscission zone cells also help in producing a defence mechanism against the new cell walls and protein to prevent infection.
Fruit Abscission	Once the fruit has been mature there is fruit Abscission (MFA) takes place through the expression of genes in the abscission zone. It involves the action of sterols and sphingolipids.
Leaf Abscission	Once the base of the petiole happens it consists of thin cell walls which increases the activities of pectinase and cellulase enzymes. This is responsible for the breakdown of the middle lamella and primary cell walls that lead to the separation of cells. In the end, the petiole detaches itself due to its weight and went pressure.

Abscission Signaling

Abscission signaling in plants is influenced by several factors including environmental stresses and production of reactive oxygen species. Some of the basics of Abscission signalling are discussed below:

Environmental stresses such as UV exposure, cold, salt, bright light and pathogen infections lead to the production of reactive oxygen species which include H2O2 superoxide singlet Oxygen and hydroxyl radicals.
It requires the expression of the cell wall which degrades enzyme cellulase that functions downstream of ethylene in the abscission signaling.
Increased in the level of H2O2 also guesses the execution of the space which indicates the environment of cell wall degradation.

What is Ablation?

Ablation in biology is the removal of a biological structure or functionality, such as an organ or a cellular component. Ablation of genes and organs are two examples. Genetic slicing is also known as gene ablation.

What is Abaxial?

It refers to a position away from the axis or the opposite side of the axis. It is used in botany to describe the various positions of the plant. Example: the abaxial surface of a leaf.

Other Interesting Topics of Biology:

Structures in Bacteria	Economic Importance Of Lichens
Virus Life Cycle	Ascaris life cycle
Genetic Code And Mutation	Human Genome Project

Frequently Asked Questions (FAQs)

1. What is the difference between Abscission and Senescence?

The primary distinction between abscission and senescence is that the former refers to the detachment of a plant portion or organ from the plant body, whilst the latter refers to the degeneration of plant organs caused by ageing. Senescence, which is defined as "the process of ageing," is the opposite of abscission, which is a regulated process.

2. Name the plant hormones that control Abscission?

When large amounts of the phytohormone Auxin get to the AZ cells, abscission is not triggered. Although abscisic acid was formerly thought to be the hormone that causes abscission (for which the hormone was called), it has now been established that it does not have a major function. Additionally, ethylene plays a significant role in controlling abscission signalling. In reaction to indoleacetic acid (IAA), leaf abscission is delayed, whereas in response to gibberellic acid, abscission often accelerates (GA).

3. What is mixed Aphasia?

Repetition is the main linguistic capacity present in mixed transcortical aphasia, a kind of aphasia. It is a rare form of aphasia. Isolation aphasia is another name for mixed transcortical aphasia.

4. What is the root word for biology?

The term bio's Greek source means "life." Examples of terms from this root word that are often used in the English lexicon include biological, biography, and amphibian. Biology, the study of "life," is a simple term that might be useful in recalling the definition of "bio."

5. What is biology's one-word answer?

A study of life is called biology. The Greek words "bios" and "logos," which both mean "life," are the origin of the word "biology."