Answer:
1. when there is a cut, the surface area of the skin becomes rough which activates the Thrombin, that catalyzes the activation of fibrinogen present in plasma.
2. albumin contributes mostly of making plasma protein
3. albumin contributes the major portion to the osmotic pressure of plasma.
4. fibrinogen mainly forms the structural framework of a blood clot during blood coagulation.
Answer:
plants For example, phototropism is the plant's response to stimulus, i.e. sunlight. A plant hormone “auxin” keeps the plant's direction towards the sun by activating the growth in a particular part of a stem. Similarly, gravitropism in plants responds to the stimulus, i.e. gravity
Explanation:
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Answer: b. removal of introns from mRNA
The process by which Ribosomes attached to ER or lying freely in the Cytoplasm synthesize proteins from the transcribed mRNA of the DNA is called Translation.
Explanation:
It is made up of three stages;
1. INITIATION;Options C mRNA binding to the ribosome
2. ELONGATION ;Option D joining large and small ribosomal subunits
3, TERMINATION;Option E chain termination at a stop codon
However, Introns are non coding region of RNA base sequence transcribed from the DNA, or sections of DNA encoding the RNA. It is an unwanted part which must be sliced out before translation. Therefore it is not a relevant steps of translation, and hence Option B is the wrong answer.
Note the coded part of RNA trancripts is called EXONS. this the part with the needed information.
Answer:
Yes.
Explanation:
Yes, Nuclear hormone receptors is also responsible for binding hormones due to presence of Ligands. Ligands bind to and activate nuclear receptors such as lipophilic substances such as endogenous hormones, vitamins A and D, and xenobiotic endocrine disruptors. The first role of Nuclear hormone receptors are the control of gene expression by directly binding to DNA and its second role is binding of hormones.
