Plant Reproduction and Growth: Phloem, Xylem, and Tropisms
Phloem
The phloem moves food substances that the plant has produced by photosynthesis to where they are needed for processes such as:
- Growing parts of the plant for immediate use
- Storage organs such as bulbs and tubers
- Developing seeds
Asexual reproduction generates offspring that are genetically identical to a single parent.
Step 1: After pollen has landed on the stigma, it goes a pollen tube down through the style to the ovary.
Step 2: The nucleus of the pollen grain travels down the pollen tube and
CRISPR-CAS9: Revolutionizing Gene Editing for Humanity
Introduction
Attention Getter: What if I told you, you could all become superhumans. How would this be possible? A spider bite maybe? Nope. Through the potential of CRISPR-CAS9.
Relevance: CRISPR-CAS9 is a revolutionary biotechnology that has multiple implications for humanity.
Thesis: Because this new biotechnology could affect our lives drastically, it is important to at least have an understanding of it and what it could do.
Credibility: I am credible to talk about this because I am well-researched
Read MoreApplications and Techniques of Plasmids and Gene Mapping
Properties of Plasmids:
Plasmids have a wide range of applications in various fields, including medicine, biotechnology, agriculture, and environmental science. Here are some of the major applications of plasmids:
- Gene cloning and expression: Plasmids are widely used in gene cloning and expression. They can be used to clone genes of interest and express them in host cells.
- Bioremediation: Plasmids are used in bioremediation, which is the process of using microorganisms to degrade or remove pollutants
Cell Biology: Elements, Microscopes, and Cell Structures
Ch. 6: Natural Elements in Living Things
C, O, N, H
Molecular Chains
Carbon can form large molecules
Monomers
Small molecules
Polymers
A large molecule formed when many smaller molecules bond together
Carbohydrates
An organic compound in ratio of 1 carbon, 2 hydrogen, 1 oxygen (sugars)
Lipids
Fats, oil, waxes (C, O, H)
Proteins
Built by amino acids (C, H, O, N), enzyme is a protein that changes the rate of a chemical reaction
Nucleic Acid
Composed of nucleotides
Ch. 7: Development of Electron Microscopes
In the
Read MoreThe Earth’s Complex Systems and Ecosystems
1. The Earth: A Complex System
The Gaia hypothesis, described in the text at the beginning of this unit, states that the planet Earth behaves like a system. Furthermore, it can be considered a complex system, because it is made up of interacting subsystems.
Atmosphere: Mix of gases which forms the outer layer of the planet.
Hydrosphere: All the planet’s water, including water contained in living things.
Geosphere: Subsystem made up of minerals, rocks and soil
Biosphere: Subsystem made up of all living
Read MoreReproductive Health and Techniques
4.) Answer the following questions in short.
1) Explain with examples types of asexual reproduction in unicellular organism.
ANS:a. Asexual reproduction in unicellular organisms can be of three types:
Binary fission: Binary fission is the splitting of parent organisms into two halves, each of which develops to form a complete daughter cell. For example, Amoeba reproduces asexually by the process of binary fission. In Amoeba, binary fission begins with the division of the nucleus. This is followed by