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Biology MCQ Questions with answers

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Learn Biology MCQs [Page 1 of Department 23]

R

Radha • 40 Points
Newbie

1) Which of the following are the basic categories of chemical signaling found in multicellular organisms?

(A) Paracrine signaling
(B) Autocrine signaling
(C) Endocrine signaling
(D) All of the above
Correct Answer - Option (D)

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R

Radha • 40 Points
Newbie

2) Cell signaling is __________.

(A) Intercellular
(B) Intracellular
(C) Both (a) and (b)
(D) None of the above
Correct Answer - Option (C)

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R

Radha • 40 Points
Newbie

3) Which of the following signaling is involved in Paracrine signaling?

(A) Chemical signaling
(B) Synaptic transmission
(C) Hormonal Communication
(D) Autostimulation of cell
Correct Answer - Option (A)

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R

Radha • 40 Points
Newbie

4) Which of the following statements is true about cell signaling?

(A) In plants, the cell signaling occurs through phytohormones
(B) Cell signaling is used to study the context of human diseases
(C) Cell signaling is used to study the signaling between cells of an organism
(D) All of the above
Correct Answer - Option (D)

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K

Kirti • 10.37K Points
Tutor II

5) Which of the following signal molecules is not used for extracellular signaling?

(A) Autocrine
(B) Endocrine
(C) Cyclic AMP
(D) None of the above
Correct Answer - Option (C)

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Kirti • 10.37K Points
Tutor II

6) Which of the following signal molecules does not interact with cell surface receptors?

(A) Insulin
(B) Gastrin
(C) Glucagon
(D) Testosterone
Correct Answer - Option (D)

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K

Kirti • 10.37K Points
Tutor II

7) Which of the following G-protein takes part in the regulation of vision?

(A) Golf
(B) Gi family
(C) Gs family
(D) Gq family
Correct Answer - Option (B)

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K

Kirti • 10.37K Points
Tutor II

8) The signaling pathway, followed by T-lymphocytes in response to antigenic stimulation, is _______.

(A) Endocrine signaling
(B) Paracrine signaling
(C) Autocrine signaling
(D) Juxtacrine signaling
Correct Answer - Option (C)

No Explanation found. Add Explanation and get +2 points.

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Kirti • 10.37K Points
Tutor II

9) Extracellular signaling in animals is carried out by _________.

(A) Autocrine signaling
(B) Endocrine signaling
(C) Juxtacrine signaling
(D) All of the above
Correct Answer - Option (D)

No Explanation found. Add Explanation and get +2 points.

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