Answer:
B)
general
Explanation:
just did the test on usatestprep
b. decreased
c. stayed the same
Organism slime molds are fungus-like protists.
Further Explanation:
Slime molds are known to be fungus-like protists that grow as slimy masses on the decaying matter. These are usually observed on things such as rotting logs. The water molds are known to be fungus-like protists that are found in the moist soil as well as surface water. They reside as parasites or on decaying organisms.
Fungus like protists have a feature that they do not move, and very few develop movement at a certain point in their lives. These are absorptive feeders on the decaying matter and resemble fungi as well as they reproduce with the spores just like fungi do. But, in other ways, they are slightly different from fungi as well as more like other protists. For instance, they have cell walls made up of cellulose, while fungi have cell walls made up of chitin. Like other protists, they have a complex life cycle having both sexual as well as asexual reproduction. These are also known to be motile in nature during certain phases of their cell cycle.
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Answer Details:
Grade: Middle School
Subject: Biology
Chapter: Classification of organisms.
Keywords:
Sexual reproduction, asexual reproduction, protists, slime molds, cellulose, absorptive feeders, chitin, cell cycle, life cycle.
Slime molds are fungus-like protists. Molds are absorbing organisms that feed on decomposing organic materials. They reproduce via spores, just like fungi do.
Protists that resemble fungi and develop as slimy masses on decomposing debris are known as slime molds. These are frequently seen on items like decaying wood.
The water molds are protists that resemble fungi and are known to live in both surface water and damp soil. They live on living things that are decomposing or as parasites.
Individual amoeba-like cells that combine to form a multicellular structure make up a cellular slime mold.
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Answer:
Pepsin breaks the proteins into simple amino acids.
Explanation:
Digestion is the process of break down of the larger food particles into the simpler substances. The digestion process requires enzymes and digestive juices.
Proteins are made of the amino acids. The enzyme pepsin helps in the breakdown of proteins into the simple peptides. The proteins present in the test tube is hydrolyzed by the enzyme pepsin and breaks down the proteins into simpler amino acids.
Thus, the answer is pepsin breaks the proteins into simple amino acids.
Answer:
glucose, C6H12O6
Explanation:
energy in a glucose molecule is stored in the covalent bonds, making it very strong
Answer:
Glucose
Glucose is the easiest and richest sources of energy. It is considered as the prime source of energy. In human body, excess amount of glucose is store in a form of polymers called glycogen.
Answer: The correct statements are-
1. At any stage of mitosis a cell has twice as much as DNA in G1.
2. Metabolically active cells can exit, and sometimes re-enter, the cell cycle.
Explanation :
1.. The cell cycle consists of 4 distinct phases - M phase which is the mitotic phase and the G1, S and G2 phase which together form the interphase. The interphase is preparatory phase wherein the cell grows in size, replicates the DNA etc. whereas the M phase is the one where events related to cell division takes place.
2. The cell has 2C amount of DNA during G1 but since the DNA replication takes place during S phase, the amount of DNA doubles up to 4 C and remains so in G2 and M phase until cytokinesis results in the formation of 2 daughter cells.
3. Sometimes, the metabolically active cells can exit the cell cycle and become quiescent until the conditions are favourable. When these quiescent cells recieve the right stimulus they can re enter the cell cycle.
4. Extracellular conditions such as nutrient availability, presence of certain mitogens, growth factors etc. do regulate the cell cycle progression. If any of these extracellular facotrs are limiting the cell cycle is arrested.
5. Once the cell cycle starts, it can be stopped without leading to cell death. When this happens it is known as cell cycle arrest. During this arrest several factors are assessed and if theire is need for repair of DNA then that also takes place. Once, the limitations are overcome or the repair is done, the cell cycle can then continue.
The cell cycle, comprising of interphase (G₁, S, G₂ stages) and the mitotic phase, is a series of regulated events leading to cell division. This cycle can be influenced by internal and external conditions.
The cell cycle is a carefully regulated sequence involving cell growth, DNA replication, and cell division that results in two new daughter cells. The cycle comprises two main phases: interphase and the mitotic phase.
Interphase is further divided into three stages: G₁, S, and G₂. During G₁, the cell is active at the biochemical level, accumulating the building blocks of chromosomal DNA, associated proteins and energy reserves.
The S phase is marked by DNA replication, resulting in identical pairs of DNA molecules. The G₂ phase is another period of growth and preparation for division. The mitotic phase includes karyokinesis (mitosis) and cytokinesis, leading to the separation of cytoplasmic components of daughter cells.
It's worth note that metabolically active cells can indeed exit and re-enter the cell cycle, and extracellular conditions along with internal signals can influence the progression of the cell cycle.
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