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Plant Biology

Plant biology is the study of plant species, which encompasses understanding all aspects required for plant life and proper functioning. In a basic sense, plants, similar to animals, are living organisms which require water, oxygen and nutrients to grow and depend on glucose to produce energy.

The study of plant biology requires an understanding of the biochemical and physiological processes required for development and growth. The processes of photosynthesis and respiration are absolutely essential for plant life. Any mutations in the enzymes or machinery involved in these processes could lead a plant to cease functioning. Furthermore, in terms of physiology, it is important to understand the structure of a plant at both the cellular and organism level, to comprehend how a plant is able to function on a day-to-day basis.

Plants are extremely diverse and thus, there are a variety of different species. According to a report from 2011, done by the United Nations Environment Programme, there are about 298 000 plant species on Earth and not all of these plants have been discovered (1). Evidently, there are a variety of unique plants present all around the globe. Thus, plant taxonomy is another important field in plant biology because it is this discipline which provides a way to classify and name all of these species.

Aside from all the pure scientific topics related to plant biology, plant biology also includes learning the multiple ways in which plants can be utilized. For example, plants can be used as a food source, for medicinal purposes and as clothing, among other functions. Additionally, plant biotechnology is becoming an important field of exploration as more research is being conducted and illustrating that plants have many real-world applications.

Plant biology is an exciting field of science which covers a wide spectrum of topics. Since early civilizations, much knowledge has been gained with regards to the inner-workings of plants. However, further research is still rigorously being performed to provide a full understanding of the intricacies of plant organisms.  

Reference:

  1. http://www.unep.org/newscentre/default.aspx?DocumentID=2649&ArticleID=8838

Categories within Plant Biology

Plant Structure and Development

Postings: 14

Plant structure and development is a topic which considers plant synthesis at both the cellular and organismal levels and how this influences plant growth.

Stress Response

Postings: 1

A stress response is an adverse reaction experienced by a plant due to an abiotic factor, such as high salinity, which a plant may encounter in its environment.

Plant Diversity

Postings: 20

Plant diversity encompasses the total variation of plant species which exists.

Biotechnology

Postings: 11

Biotechnology is a type of technological advancement which incorporates the application of engineering principles and benefits the biological sciences.

Algae

Postings: 1

Algae represent a large, photosynthetic plant-like group which vary from being unicellular to multicellular.

Biology Revision questions Solutions

This is not for an assignment. It is to study for an exam and I need help to make sure I am on the right track. Thank you. (5 marks) 4. How do fern gametophytes differ from moss gametophytes? (6 marks) 6. How are the excretory organs of annelids different from those of insects? (6 marks) 7. Explain the African Emerge

Comparison Between Plants and Fungi

What characteristics do plants and fungi share? What characteristics differentiate a plant from a fungus? Which evolved first? Please cite references.

Hardy-Weinberg Problem

Using the Hardy Weinberg equilibrium, calculate the frequencies of this situation: 500 individuals have 80 green flowered plants; the remaining plants have blue flowers. You know that flower colour is determined by one gene with two alleles. Looking at your population, can you determine which allele is dominant? Calculat

Hydra, Nematodes and Planarians

Describe for hydra, nematodes and planarians: - symmetry - shape - germ layers - body covering - cephalization - coelomic cavity - masculature - digestive tract and digestion - excretion - nervous system - sense organs - sexual reproduction - asexual reproduction.

The process of CAM photosynthesis

Explain the process of CAM photosynthesis using native plants as examples of the process in action. Feel free to consult outside sources for additional data to support your discussion.

Photosynthesis

1. What is the relationship between an increase in light intensity and photosynthetic rate in leaves from a corn plant? How does this relationship compare with tomato plants? 2. Photosynthetic saturation is the maximum rate of photosynthesis. What value of light intensity produced photosynthetic saturation in corn leaves?

Photosynthesis and Thermodynamics

Be certain to describe three or more ways in which the plant cell and the solar cell are similar to each other, as well as three or more ways in which they are different from each other. In addition, please explain how the laws of thermodynamics apply to each system.

Scientific method is depicted.

You grow three plants with a light to the left of them and three plants with a light to the right of them. The leaves of the plants with the light on the left turned toward the left and the tops of the plants grew toward the left. The leaves of the plants with the light on the right turned toward the right and the tops grew t

Chlorophyll and Accessory Pigments

Plant leaves appear green because they ________ light spectrum. A) scatter all colors except the green wavelength of the visible B) scatter the green wavelength of the visible C) absorb the green wavelength of the visible D) scatter the green wavelength of the ultraviolet E) absorb the green wavelength of the ultraviolet

Distribution of ocean plants

The organisms associated with patches of floating ocean vegetation would be an example of: a. random dispersion b. aggregated distribution c. uniform dispersion d. density-dependent distribution e. clumped dispersion

If plants are experimentally grown in an environment

If plants are experimentally grown in an environment with extra carbon dioxide, how do you expect this will affect photosynthesis? - I think will accelerate photosynthesis and growth of plant, then again plants do not uptake CO2 at night so there would be an accumalation and this would seem pointless.

REACTIONS

The reactions of photosynthesis are divided into two categories: a. light-independent reactions and carbon fixation reactions b. carbon fixation reactions and oxygen fixation reactions c. light dependent and carbon fixation reactions d. light dependent and citric acid cycle e. chemiosmosis and photochemical reactions

The overall reaction of photosynthesis

The overall reaction of photosynthesis are best summarized as: a. 12 CO2+6H20---C6H12O6+12O2+6H2O B. C6H12O6 + 6O2+6H20---6CO2+12H2O C. 6CO2+12H2O---C6H12O6+6O2+6H20 D. 6CO2+12H20---C6H12O6+12O2 E. 6H2CO3+6H20---C6H12O6+C6H12O6+6H20+6O2

Stearidonic Acid (SDA) in Soy Plants

1) The biochemical pathway by which SDA is produced in the modified soya plants is shown in the diagram attached. The fatty acids and transformation shown in black occur naturally in unmodified soya, whilst those shown in red are those which occur as a result of the modification process. In the case of genetic modification to

Cellular Respiration and Photosynthesis

Cellular Respiration and Photosynthesis co-exist as paired metabolic processes. Photosynthesis uses light energy to convert carbon dioxide into glucose, a simple sugar, in two steps, the light dependent and light independent reactions. Oxygen is produced as a by product during photosynthesis. This reaction stores energy in th

study the effects of geotropism and auxin on plant development

Geotropism Lab 1. Why do plants always grow the correct way? The stems and leaves always grow up, and the roots always grow downward, but, how do they know which way is which? What keeps them from getting confused and growing upside down? Look up the word "auxin" and describe its function. 2. What does the word geotropis

Tissue water potential

2a. Graph the change in weight versus the concentration of mannitol . Draw on the graph how you would estimate the water potential of the tissue 2b. Graph the change in length versus the concentration of mannitol. Draw on the graph how you would estimate the water potential of the tissue 3. From your graph wha

Botany, Crop Science

1. Please label the five parts (per drawing, attached). ? (Perhaps- Label according to position of identification boxes (from top to bottom), with some description). 2. In double fertilization, one sperm units with the egg nuclei to form the zygote, and the other sperm unites with the two polar nuclei to form wh

Cellular Respiration and Photosynthesis Co-exist as Paired Metabolic Processes

Cellular Respiration and Photosynthesis co-exist as paired metabolic processes. Photosynthesis uses light energy to convert carbon dioxide into glucose, a simple sugar, in two steps, the light dependent and light independent reactions. Oxygen is produced as a by product during photosynthesis. This reaction stores energy in th

Science

PART I: SCIENTIFIC METHOD Each and every day, we are faced with having to make split-second decisions, and the need to solve random problems that we encounter. To reach those decisions and work those problems out you are subconsciously using the scientific method. Apply the five steps of the Scientific Method to two situation

Describe modified parts of an angiosperm.

My assignment is on the mangrove tree Angiosperms (flowering plants) are the largest Phylum in the Plant Kingdom (Angiospermophyta is also called Anthophyta or Magnoliophyta). These plants have true roots, stems, leaves and flowers. The roots grow into the soil to anchor the plant in place and take up water and nutrients. The

Find an angiosperm that has modified leaves, stems, roots, or flowers.

Find an angiosperm that has modified leaves, stems, roots or flowers that do not function in the normal manner, or that function in an unusual manner. Angiosperms (flowering plants) are the largest Phylum in the plant kingdom (Angiospermophyta is also called Anthophyta or Magnoliophyta). These plants have true roots, stems, l

Transgenic Plants Biotechnology

(Transgenic plants) 1.Briefly describe this biotechnology application. 2.How is it used today. 3.Based upon the definition of biotechnology, describe how this biotechnology application is an example of biotechnology. 4.What benefits are derived from this application? 5.Are there any concerns or negative impacts as

Explain the processes of photosynthesis and cellular respiration.

Details: There are two main types of cells: prokaryotic and eukaryotic. Bacterial cells are prokaryotic. Select two structures of bacterial cells and briefly describe them; what do they look like, what are they composed of? Then, explain how these two structures allow bacterial cells to survive as unicellular organisms. The

Genetic Diversity

Define genetic diversity and explain the importance of genetic diversity for crop plants and livestock