Which of the following are examples of a POSTIVE feedback mechanism? A. Childbir

Question

Which of the following are examples of a POSTIVE feedback mechanism? A. Childbirth B. Blood coagulation C. Complement activation D. A& B E. A, B & C Which of the following is the MOST complex level of protein structure displayed by hemoglobin? A. Primary structure B. Secondary structure C. Tertiary structure D. Quaternary structure E. None of the above Hepatocytes use ________ to transport TRIGLYCERIDES to adipocytes for storage. A. low-density lipoproteins B. very low-density lipoproteins C. high-density lipoproteins or chylomicrons D. A, & B E. A, B & C Which of the following is used as primers by DNA polymerase III enzymes? A. Single-strand RNA B. Double-strand DNA C. Proteins D. Single-strand DNA E Double-strand RNA The accumulation of protons in the i space is an example of what types of energy? A. Kinetic energy B. Radiant energy C. Potential energy D. A & B E A, B & C MATCH each question (''6, ''7, ''8, ''9, ''10) to their respective BEST or MOST relevant answer choice (A, B. C. D. E). Replication A. Reactions that result in the synthesis of large molecules Catabolism B Occurs in the cytosol Translation C. A series of interconnected redox reactions within a membrane Anabolism D. Occurs in the nucleus Transcription E Reactions that result in the breakdown of large biomolecules

Explanation / Answer

1. Child birth and blood coagulation are the are the examples of positive feedback mechanism.

Hence option (D) is correct.

2. Most complex level of protein structure displayed by haemoglobin is quaternary structure.

Hence option (D) is correct.

3. Very low density lipoproteins are used by hepatocytes to transport triglycerides to adipocytes for storage.

Hence option (B) is correct.

4. Single stranded RNA molecules are used by DNA polymerase iii enzymes as primers during replication.

Hence option (A) is correct.

5. The accumulation of protons in intermembrane spaces creates potential energy gradient.

Hence option (C) is correct.

(ii).

Replication Occurs in cell nucleus. Catabolism reactions that result in the breakdown of large biomolecules. Translation Occurs in cytosol. Anabolism Reactions that result in the synthesis of large biomolecules. Transcription Occurs in the nucleus.

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