A few enzymes<span> exhibit absolute </span>specificity<span>; that is, they will catalyze only one particular reaction. Other </span>enzymes<span> will be specific for a particular type of chemical bond or functional group. In general, there are four distinct types of </span>specificity<span>: Absolute </span>specificity<span> - the </span>enzyme<span> will catalyze only one reaction.</span>
1. flask-shaped gland unbranched ducts=SIMPLE ALVEOLAR GLAND
2. slender, straight gland unbranched ducts = SIMPLE TUBULAR GLAND
3. combination of gland shapes = TUBULAR ALVEOLAR
4.branched ducts=COMPOUND GLAND (salivary glands)
All of them are the exocrine glands (their product is secreted on the epithelial surface).
I found out the the choices attached to the question are:
A) A gene
B) mRNA
C) ATP
The answer would be letter B. mRNA. The discovery of mRNA had been one of the most significant molecular milestones at the time during the early 1900's as it was discovered by Sydney Brenner and his company.
Answer:
RBCs' production is controlled by erythropoietin.
Mature RBCs are released into the bloodstream after approximately seven days RBCs are produced in the bone marrow
Explanation:
The hormone erythropoietin is produced and released in the bloodstream by peritubular interstitial cells of kidneys. The function of erythropoietin is to increase the number of the precursors of red blood cells and thereby to stimulate the production of red blood cells in the bone marrow. When the oxygen supply to body cells is reduced, the hormone erythropoietin stimulates the development of proerythroblasts into reticulocytes and thereby increases the RBC production.
RBCs are produced by the process of erythropoiesis and take about seven days to become mature and to be released in circulation to serve the function of oxygen delivery. The maturation of RBCs also includes the loss of most of the organelles such as the nucleus and mitochondria to accommodate hemoglobin protein. The life span of circulating RBCs is about 100-120 days.
The question is not given. You just placed some statements. Apparently, here you have some definitions to pair with the type of elements. So, I will separate the statements as per my best understanding. If the question requires anything else tell me to give you more details.
<span>1. Metalloid
Metalloid is an element that has properties in between metals and non metals, this is metalloids have some properties of both.
Then you can pair it with ---> moderate ability to conduct heat and electricity
2. noble gas
The elements that are knwon by not reacting with other elements are noble gases.
Then, pair this with ---> will not react with other elements.
3. metal:
Metals are malleable, polishes to a luster and are good conductors of heat and electricity.
Then pair metal with ---> malleable, polishes to a luster;
conducts heat and electricity well
4) non metal gaseous: non metal are poor conductors
So, pair this with ---> does not conduct heat or electricity well
Given that the question is no
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