MULTIPLE CHOICE Choose the one alternative U One difference between eukaryotic c

Question

MULTIPLE CHOICE Choose the one alternative U One difference between eukaryotic completes the statement or and prokaryotic cells is that eukaryotic cells cells havewhichis anees, which are lacking in D) lack the complexity seen in E) have a plasma membrane, which is lacking in A) have C) have a nucleoid region which is in 2) ollowing is a statement of the first law of thermodynamics? A) The entropy of the universe is B) The entropy of the universe is constant. Q) Energy cannot be transferred or transformed. D) kinetic energy is stored energy that results from the specific arrangement cannot be created or 3) 3) In glycolysis for each molecule of glucose oxidized to pyruvate A) four molecules of ATP are used and two molecules of ATP are produced. B) two molecules of ATP are used and four molecules of ATP are produced. C) six molecules of ATP are used and six molecules of ATP are produced D) two molecules of ATP are used and six molecules of ATP are produced. E) two molecules of ATP are used and two molecules of ATP are produced. 4) Which plant cell organelle contains its own DNA and ribosomes? A) glyoxysome B) peroxisome Q Golgi apparatus D) vacuole E) mitochondrion 5) Which of the following is (are) true of natural selection? A) It results in descent with modification and involves differential reproductive success. B) It results in descent with modification. C) It involves differential reproductive success D) It requires genetic variation E) It requires genetic variation, results in descent with modification, and involves differential reproductive success 6) Which of the folowing statements regarding enzymes is true?

Explanation / Answer

1. A . one major diference between eukaryotic and prokaryotic cells is that Eukaryotic cells have membrane bound organelles( Endoplasmic reticulum , mitochondria etc) which are lacking in prokaryotic cells.

2. E. First law of thermodynamics states that heat is a form of energy and and thermodynamic process are therefore subject to the principle of conservation of energy. This means that energy cannot be created or destroyed.

3. B. Two molecules of ATP are used and 4 molecules of ATP are produced. however the net yield is 2 molecules of ATP.

4. E. Mitochondria contains its own DNA and ribosomes. Apart from mitochondria ,chloroplast also contains its own DNA and ribosome.

5.E. Natural selection requires variation, results in descent with modification, and involves digferential reproductive success.

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