A two-component regulatory system usually involves both the sensor and response proteins being subject to phosphorylation

Indicate whether the statement is true or false.


Answer: TRUE

Biology & Microbiology

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The FIRST step in the Krebs cycle is combination of an acetyl group with oxaloacetic acid, leading to the formation of

a) lactic acid. b) pyruvic acid. c) citric acid. d) acetyl CoA.

Biology & Microbiology

Which of the following is NOT characteristic of the phase of the cardiac cycle known as ventricular systole?

A) The atrioventricular valves close B) Atria contract, causing blood to fill the ventricles C) The ventricles contract

Biology & Microbiology

Identify the stage of mitosis shown in panel B

a. interphase b. prophase c. metaphase d. anaphase e. telophase

Biology & Microbiology

Straps of connective tissue that hold bones together, support joints, and direct movement are known as ________

A) tendons B) ligaments C) bursae D) cartilages

Biology & Microbiology