Examples of Plant Biology MCQ With Answers

In biology, you will be expected to know about the different functions and the structure of the living organisms. The study of life and how it is able to adapt to the environment is the main objective of the subject. The subject also includes several subjects such as botany and genetics. These subjects can help you in your exams and also in your career. Listed below are some examples of plant Biology mcq with answers.

Support in plants

There are several ways plants provide support to each other. These support systems can be either physiological or structural. Physiological support is based on the amount of water inside the cell, which is essential to the entire plant. When water enters the cell, it creates a pressure that pushes protoplasm to the cell wall. Plants also have structures that help maintain the turgidity of their internal tissues. A good example of a plant's structural support is cellulose in its cell walls, which provides structural support and helps the plant retain water.

Pumps transport substances from high concentration to low concentration

Pumps transport substances from high concentration to low by forcing them into and out of cells. This process uses energy from ATP to force the substances to move. Pumps are active transport systems that move molecules and ions from one place to another, a process called active transport. Pumps work by transferring molecules from a low concentration to a high concentration and are the most common method used to transport substances.

Ovules produce ubisch bodies

The ovule body is not completely inverted but is bent like a horseshoe. The micropyle and the chalaza do not lie in the same plane, but the nucellus is straight and the end of the ovule is lined with a membrane. Ovule bodies are made up of one hypodermal cell, the primary archesporial cell, and an integumentary process near the base of the mound. These cells contain a big nucleus and dense cytoplasm.

Pollen grains produce pollen grains

A pollen grain is a small, complex structure composed of three distinct parts. The central cytoplasmic part, which contains nuclei, is the source of fertilization. The outer layer, the exine, contains cellulose and hemicellulose. The exine is the thickest and strongest layer, and it is also the most resistant to disintegration. Pollen grains are useful in the production of food and cosmetics.

Plant cells do not have cell walls

Animal cells and plant cells have different morphologies, but both share the same basic structure: cell membranes and a rigid cell wall. In plant cells, the wall surrounds the cell membrane, giving it its unique rectangular shape. In contrast, animal cells only have the cell membrane. In both animal and plant cells, there are many different organelles and structures within the cell membrane. This can lead to confusion between the two types of cells.

Tissue culture is a technique of growing plant cells, tissues, organs, seeds or other plant parts in a sterile environment

In tissue culture, plant cells or tissues are grown in a sterile environment. The process produces many plants within a short period of time. This technique can help underdeveloped countries increase food production. This technique requires only a small amount of initial plant tissue. Tissue culture is commonly used for cloning, genetic modification of a particular plant, and to increase yields.

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