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What are the four main processes that occur in spermatogenesis within the testes?

1.Mitosis: division of germline epithelium (into spermatogonia) 2. Cell growth 3. Meiosis (2 divisons): results in four haploid daughter cells 4. Cell differentiation: forming sperm cells Extension: Sertoli ...
TD
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How do you explain the process of translation?

Enzymes which are specific to different tRNA types catalyse the bonding of amino acids to tRNA molecules, which requires ATP for energy. There are 4 stages to translation: initiation , elongation , transloca...
LW
Answered by Lucy W. • Biology tutor
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What is a protein? How are proteins made?

Proteins, also known as polypeptides, are amino acid sequences . All proteins are made of amino acids.Proteins exhibit variance . This is due to the fact that there can be a myriad of possible combinations :...
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Answered by Francesco G. • Biology tutor
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Define Enzyme and Active site

Enzymes are biological catalysts that are formed from globular proteins. Active site is the molecule surface space where the substrate binds and catalysis occurs. Extra points: - Enzymes are NOT used up in a...
XY
Answered by Xin Yan H. • Biology tutor
8359 Views

State the source, substrate, products and optimum pH of one amylase, one protease, and one lipase

Amylase (Salivary amylase) Source: salivary glands in the mouth Substrate: starch Products: maltose Optimum pH: 4.6-5.2 Protease (pepsin) Source: chief cells in the stomach Substrate: proteins, polypeptide c...
LH
Answered by Louise H. • Biology tutor
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