It was Mr. Robert Remak who discoved that new cells are formed from the pre –existing cells. Later on Mr. Rudolf Virchow was the first to accept Mr. Robert’s concept of cell theory and their emergence. Remak found this theory when he was observing red blood cells (RBCs) in the embryo of chicken at all stages of division.
The cell theory is given by Theodor Schwann, Matthias Schleiden, and Rudolph Virchow.
Further explanation:
Cells are the smallest unit of life. It is an essential matter of living. It can be eukaryotic and prokaryotic cells. Eukaryotic cells have a nucleus (DNA) packed within the nucleus membrane, whereas prokaryotic cells have circular DNA, which is called a nucleoid. Cells are consisting of cell organelles that help in performing all the cellular activity.
The cell theory defines the basic theory of life that all the living things are formed from the smallest unit called a cell. This theory is proposed by Theodor Schwann, Matthias Schleiden, and Rudolph Virchow. It explains that the cells are formed from pre-existing cells, not from spontaneous generation.
The modern cell theory explains that energy is formed within the cell. The mitochondria, also are known as the powerhouse of the cell, helps in the formation of energy in the form ATP (Adenosine Triphosphate). It also explains that cell is the medium through which hereditary information is transformed from one generation to another generation. The nucleus of the cell contains DNA (Deoxyriboses nucleic acid) that carries genetic characteristics. All the cells, either eukaryotic or prokaryotic, have the same chemical composition.
Learn More:
1. Learn more about meiosis brainly.com/question/1600165
2. Learn more about the process of molecular diffusion in a cell brainly.com/question/1600165
3. Learn more about human sperm and egg cell brainly.com/question/1626319
Answer Details:
Grade: High School
Subjects: Biology
Topic: Human Physiology
Keywords:
Cell, smallest, eukaryotic, prokaryotic, DNA, organelle, spontaneous, mitochondria, energy, adenosine triphosphate, hereditary, genetic, characteristic, chemical.
B. your cytoplasm
C. your ribosomes
D. your chromosomes <-- my answer
What is the shape of DNA called?
A. nucleotide
B. double helix <-- my answer
C. chromosome
D. ribonucleic acid
What is the relationship between a chromosome and DNA?
A. Chromosomes are made of DNA.
B. DNA is made of chromosomes.
C. DNA manufactures chromosomes. <-my answer
D. Chromosomes manufacture DNA.
What do parents pass on to their offspring?
A. genes <-- my answer
B. double helix
C. nucleotides
D. ribosomes
b. Chromosomes are threadlike structures that carry genetic information.
c. Humans receive the majority of their chromosomes from their mother.
d. Chromosomes are arranged in 20 distinct pairs in the human body.
Answer: its B actually
Explanation:
Answer:
B: Chromosomes are threadlike structures that carry genetic information.
Explanation:
on edge2021!! hope this helps!!~
Answer:
what do acrosome contains: The acrosome is an organelle that develops over the anterior half of the head in the spermatozoa (sperm cells) of many animals including humans. It is a cap-like structure derived from the Golgi apparatus. In Eutherian mammals the acrosome contains digestive enzymes (including hyaluronidase and acrosin).
what is acrosome made up of? : The acrosome is an organelle that develops over the anterior half of the head in the spermatozoa or sperm cells of many animals. It is a cap-like structure derived from the Golgi apparatus.
its functions: The function of the acrosome reaction is to help the sperm get through the egg's protective coat and to allow the plasma membranes of the sperm and egg to fuse. This places both haploid nuclei (one from the sperm and one from the egg) into the same cell, where they form the diploid genome of the new organism.
Explanation:
When chemical, biological and ecological changes occur the plants start to die and decompose, fish die, carbon dioxide is released. Hence the correct option is B.
Ecological change also known as environmental change is defined as the alteration or disturbance of the environment usually caused by human impacts and natural ecological processes. Environmental changes include various factors, such as natural disasters, human interference, or animal interactions.
The ecological changes are affected by the following reasons such as habitat change, climate change, invasive species, overexploitation, and pollution. When chemical, biological and ecological changes occur the plants start to die in the pond and start to decompose, fish die, carbon dioxide is released.
Hence the correct option is B.
Learn more about Ecology, here:
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Answer:
(1)Substrate, (2)Product and (3) active enzymes.
Explanation:
Enzymes are bio catalysts that increases the rate of a biochemical reactions. The enzymes has the ability to work at specific temperature and pH conditions only.
The enzyme binds with the substrate in a biochemical reaction and decreases the activation energy of the reaction. After that the substrate is converted into the product and active enzyme leaves the reaction.
Thus, the correct answer is (1)Substrate, (2)Product and (3) active enzymes.