Pick the BEST answer:
A)Which Of The Following Is An "Excitable Cell"?
<4>1) Neuron
<3>2) Electron
<4>3) Hormone
<3>4) Both 1 & 2
<4>5) All Of The Above
B)What Is The Popular Molecule That Energizes Many Activities In Cells?
<4>1) Adenosine Triphosphate
<3>2) Adenosine Diphosphate
<4>3) Deoxyribose Nucleic Acid
<3>4) Ribose Nucleic Acid
<4>5) H2O
C)Which Of The Followings Has The Correct Complementary Base Pairing In DNA?
<4>1) Purines - Purines
<3>2) Purines - Pyrimidines
<4>3) Pyrimidines - Pyrimidines
<3>4) A-U & C-G
<4>5) A-C & G-U
D) Which Of The Followings Is TRUE?
<4>1) When The Earth Rotated Once Around The Sun, One Day Has Passed
<3>2) Rotating Around The Sun Is The Reason Why We Have Mornings & Nights
<4>3) The Distance Between The Sun & Earth Almost Constant As Earth Rotates Around The Sun
<3>4) All Of The Above
<4>5) None Of The Above
A) The best answer is option 1) Neuron.
B) The best answer is option 1) Adenosine Triphosphate.
C) The best answer is option 2) Purines - Pyrimidines.
D) The best answer is option 3) The Distance Between The Sun & Earth Almost Constant As Earth Rotates Around The Sun.
Let's go through each question and explain how to get the best answer:
A) To find the best answer, we need to identify which of the options is an "excitable cell." An excitable cell is a cell that is able to generate and transmit electrical signals, such as a neuron. Looking at the options, we can see that option 1, Neuron, is the only one that fits this description. Therefore, the best answer is option 1) Neuron.
B) The question asks for the popular molecule that energizes many activities in cells. To identify the best answer, we need to consider the molecules listed and their role in cell activity. Option 1, Adenosine Triphosphate (ATP), is a molecule commonly referred to as the "energy currency" of cells as it provides energy for various cellular processes. Therefore, the best answer is option 1) Adenosine Triphosphate.
C) This question asks about the correct complementary base pairing in DNA. Complementary base pairing refers to the specific pairing between nucleotides in DNA strands. A commonly known complementary base pairing rule is that Adenine pairs with Thymine (A-T) and Guanine pairs with Cytosine (G-C). Considering this rule, option 2) Purines - Pyrimidines best represents the correct complementary base pairing in DNA.
D) The question asks for the true statement. To identify the best answer, we need to evaluate each statement provided. Statement 2) "Rotating around the sun is the reason why we have mornings & nights" is incorrect because mornings and nights are primarily caused by the rotation of the Earth on its axis. The other statements, 1) "When the Earth rotated once around the sun, one day has passed" and 3) "The distance between the sun & Earth is almost constant as Earth rotates around the sun," are both true. Therefore, the best answer is option 4) All of the above.