The given blank can be filled with the atom.
An atom is the minutest component of a matter, which exhibits the characteristics of a chemical element. Every liquid, solid, plasma, and gas comprises ionized or neutral atoms.
The atoms are extremely small, the usual sizes are about 100 picometers. Each atom contains a nucleus and one or more electrons combined with the nucleus. The nucleus is formed of one or more protons and usually a same number of neutrons.
Cells need energy to do basic functions which are necessary for living. Cells need energy to move, synthesize proteins, divide, transport the materials, and to do the work.
Cells require energy which they get from the food they eat. The food is utilized in the production of energy in the form of ATP. This ATP is produced by the process of cellular respiration in the mitochondria of cell.
Cells require energy to do the basic functions which are important to sustain life. These include the following functions:
1. Basal Metabolism: Basal metabolism is the minimal amount of energy which is needed to keep the body functioning and alive while the body is at rest.
2. Body Composition: Body composition is one determinant of energy requirements. It is the energy requirement for the formation of new cells i.e., cell division which maintains the cell number constant in body.
3. Digestion and Absorption: Digestion and absorption are the basic processes which are used to produce energy in the form of ATP through cellular respiration in the mitochondria of cell.
4. Physical Energy: For the production of physical energy which is required for causing movement, energy is required.
5. Mental Energy: To do mental work such as learning, thinking, etc. Energy is needed by the cells.
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True or false
Answer:
False. When bonds are broken, energy is absorbed.
Explanation:
Atoms form bonds to seek stability, which means lower energy compared to when they were separated. This means that separating atoms by breaking bonds is not energetically favourable.
Therefore, in order to break a chemical bond we need to provide energy to the system, which makes the process endothermic (it absorbes energy).
The attached image shows an energy diagram for the H₂ molecule, showing the variation in energy during bond formation.
In the metaphase, chromosomes attach to the spindle fibers by their centromeres.
Further Explanation:
Mitosis is an equational division phase of the reproductive cell cycle in which spindles binds to the chromosome and move the sister chromatid separate. It is an essential step for the separation of genetic material. In the cytokinesis phase, the cytoplasm separates and forms two daughter cells. It consists of four steps:
• Prophase
• Metaphase
• Anaphase
• Telophase
In metaphase, the chromosomes are aligned in the center of the cell that indicates the second stage of mitosis. The cohesion protein plays a key role in the chromosome segregation process. It mediates cohesion between replicated sister chromatids. It is the phase where chromosomes attach to the spindle fibers by their centromeres. The cohesion protein that holds the sister chromatids together at the centromere is removed in anaphase. In this phase, the genetic material is present in the condensed form known as chromosomes.
Learn more:
1. Learn more about the mitosis brainly.com/question/6462270
2. Learn more about the menstrual cycle brainly.com/question/723944
3. Learn more about the meiosis brainly.com/question/94813
Answer Details:
Grade: High School
Subject:Biology
Chapter: Reproduction
Keywords:
Metaphase, anaphase, separation, sister chromatid, segregation, telophase, cytokinesis, cell, indicates, sister chromatid, cohesion protein.
Obligate anareobes
Facultative aerobes
Answer:
The answer is Obligate aerobes.
Explanation:
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b. Phaeophytes
c. Chrysophytes