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Cell Questions and Answers (Q&A)

Haploid and diploid are terms in cell division. The term ploidy refers to the number of chromosomes present in the nucleus of a cell. Haploid cells are cells that have just one set chromosome present in them. They are produced through the process of meiosis. The most common example of haploid cells is the germ cell which this also known as the sex cell. Organisms such as algae also have haploid cells at some point in their life cycle.

Diploid cells are cells that have two sets of chromosomes present in their nucleus. A common example is humans. Somatic cells in humans have 2 sets of chromosomes. Every one of us has two sets of the chromosome with one set from each parent. Normally, a person gets 23 chromosomes from the father and 23 chromosomes from the mother. However, in some chromosomal disorders, these numbers are altered. Hope you find this information helpful.

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Many scientists use microscopes, but sometimes a compound microscope is needed. This type of microscope is different because it includes two lenses. The compound microscope is a type of optical microscope and it has an eyepiece lens and an objective lens. It is believed that this microscope uses more light to help pass it through to the object trying to be seen.

Types of compound microscopes include stereo microscope, comparison microscope, inverted microscope and traveling microscope. One difference between a compound microscope and a regular microscope is that a regular microscope has a convex lens whereas the objective lens is located away from the eyepiece lens and is next to the object so more light will be used to see the object.

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Cells are the smallest unit in biology. Everyone has cells and there are many of them inside of someone’s body. There are two main types: animal cells and plant cells. These are called the eukaryote and prokaryote. They look different and have a different make-up. If you look inside of each of those cells, they will look different and have different things in them.

For instance, an animal cell has a nucleus in the middle, but a plant cell does not. Animal cells or Eukaryote cells are inside of humans. Other parts of cells include the cell membranes and nucleic acids. For both types of cells, they are the basic unit of life. They also come from pre-existing cells and all living things like animals and plants are made up of cells.

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Protoplasm is the entire content of a cell, and it contains both the nucleus and the cytoplasm. This shows that there is no big difference between cytoplasm and protoplasm. The cytoplasm is not a separate entity; it is part of the protoplasm. Protoplasm and cytoplasm are semi-fluid substances, and each has its own contents. While the protoplasm consists of cytoplasm, cell membrane, and the nucleus, the cytoplasm consists of organelles, vesicles, and cytosol. In other words, cytoplasm refers to the contents of a cell without the nucleus.

The cytosol in the cytoplasm consists of salts, water, and other organic materials, and the organelles in the cytoplasm consist of mitochondria, endoplasmic reticulum, Golgi body, ribosomes, etc. The ribosome is the site for protein synthesis. Protoplasm can be described as the living matter of animal cells. There are different types of processes that occur in the protoplasm, and the functionality of the whole body depends on those processes.

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S. Barnes

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The egg cells and sperm cells are different cells present in the female and male sex, respectively. The two depend on themselves to recreate life, and when they come in contact together in the female reproductive system, there will be a reaction, and gestation commences, which is likely to lead to pregnancy. They are different in terms of their source. The egg cells are produced by the female reproductive system, while the sperm cells are sourced from the male reproductive system. The way they function is different.

The egg cells are created in the female ovaries, while the sperm cells are formed in the epididymis. A sperm cell is smaller than an egg cell. Both the sperm cells and egg cells undergo meiosis. When a female reaches a particular puberty stage, her eggs start to be released during her menstrual cycles, which usually occur monthly. Sperm cells are reproduced constantly in males, while a female is naturally born with millions of cells.

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The correct order of a typical reflex arc is shown below:

  1. Sensory Receptor: A typical reflex starts with a sensory receptor to receive stimulus from the outside world to initiate the impulse in a sensory neuron.
  2. Sensory Neuron: It receives the impulse from the receptor and sends it to intermediary neuron.
  3. Intermediary Neuron: It carries information towards a motor neuron by communicating with the brain.
  4. A Motor Neuron: It sends messages either to the muscle or gland.
  5. The Effector: It is the last process of a typical reflex arc which reacts by contracting.

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The key difference between primary cells and secondary cells is reusability. Secondary cells can be reused repeatedly, while the primary cells can only be used once. Primary cells should not be recharged because it is dangerous to attempt recharge and may explode.

Primary cells are typically found in electric toys, clocks, wristwatches, and domestic remote controllers. Secondary cells are also chemical cells, but they may be restored for reuse. The chemical reaction which generates electricity is reversible, and the cell can be utilized as a new one after it is recharged.

The cell can be used again, but the lifetime is lessened. A common use for secondary batteries includes starting, lighting, and igniting vehicles. They are also used in power supplies, telecommunications, and tools.

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According to the Cell Theory, cells are called the building blocks of life because each and every living organisms are made up of cells. And cells are the basic and structural unit of life. These cells come from other primitive cells.

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Cell membrane , cell wall ,nucleus, cytoplasm, chloroplast

by isobel wright

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Is movement of molecules from a region of low concentration to a region of high concentrations with dependent energy protein carriers

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