Who proposed that new cells formed other cells?
Answers
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.
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Differnces between prothrombin and fibrinogen
Answers
The cytoplasm is where cellular respiration starts off. Here, glucose gets disassembled into smaller molecules. Additionally, a small amount of energy is released. The mitochondrion hosts the second stage.
Which two phases of aerobic cellular respiration are there?
The Krebs cycle, oxidative phosphorylation, and glycolysis—an anaerobic process—are the three phases of aerobic cellular respiration.
The Krebs cycle, the second phase of cellular respiration, happens in the matrix. On the inner membrane, electron transport occurs in the third stage.
Glycolysis, the citric acid cycle, and oxidative phosphorylation are the three basic processes that take place during cellular respiration. The citric acid cycle happens in the mitochondrial matrix, oxidative phosphorylation happens on the inner mitochondrial membrane, and glycolysis happens in the cytoplasm.
What two anaerobic cellular respiration pathways are there? Instead, some species use anaerobic respiration, which doesn't need oxygen, to make ATP from glucose. Fermentation is a crucial method of producing ATP without the use of oxygen. Fermentation comes in two flavors: lactic acid fermentation and alcohol fermentation.
Where do aerobic phases occur? The mitochondrial matrix of the cell is where aerobic respiration takes place.
To Learn more About cellular respiration, Refer:
#SPJ2
The first stage of cellular respiration occurs in the cytoplasm. This is where glucose is broken down into smaller molecules. A small amount of energy is also released. The second stage occurs in the mitochondria. This is where the small molecules combine with oxygen to produce water, carbon dioxide, and a large amount of energy.
Answers
This unit absorbs light energy for photosynthesis.
Answers
Answer:
Mitosis produces genetically identical diploid cells, while meiosis produces genetically different haploid cells.
Explanation:
Mitosis is a method of cell division by which one divides into two identical daughter cells. The chromosome number does not change after division. If mitosis occurs in diploid cell, the resultant daughter cells would be diploid and genetically identical. In meiosis, the cell divides into four daughter cells and chromosome in them is reduced to half. Thus, after meiosis diploid cell divides into haploid cells. These haploid cells are genetically different due to the exchange of chromosome segments between non-sister chromatids of a homologous chromosomes (crossing over).
Answer:
the answer is B
Mitosis produces genetically identical diploid cells, while meiosis produces genetically different haploid cells.
B. 313 kpa
C. 166 kpa
D. 277 kpa
Answers
As we know that
P total = pO +pH +pN
so
P = P1 + P2 + P3
378 kPa= 212 kPa + 101 kPa + P(H2)
P(H2) = 65 kPa
partial pressure is 65
so correct option is A
hope it helps
Answer:
The correct answer is option A.
Explanation:
Total pressure of mixture = p = 378 kPa
Partial pressure of the oxygen gas =
Partial pressure of the hydrogen gas =
Partial pressure of the nitrogen gas =
As we know that total pressure is sum of partial pressures exerted by all the individual gases.
65 kPa the partial pressure exerted by nitrogen.
Answers
b. Transport of sugars from the leaves to the shoot system
c. Transport of minerals from the leaves to the reproductive parts
Answers
Answer:
The correct answer would be a. Transport of water and minerals from the roots to the shoot system.
The xylem is a type of transporting tissue present in the vascular plants.
It forms the continuous conducting channels which reach all parts of the plants.
The main function of the xylem is to transport water and soluble nutrients unidirectionally to the stem and leaves from roots.
Transpiration pull helps in this passive transport of water from roots to the leaves.