Which of he fllwing eganting cells i te They are the at inate nt of lifs which m

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Which of he fllwing eganting cells i te They are the at inate nt of lifs which make up they ws the simplest o of lif dgells vary when viewed From the oudaide, but they ae fundamally sinlar on the inside 3. Which of the following eholees lsts the corvect onder of flow of inomation accoeding so the cetndl mit NA-b Protein E DNAPcmSA a, DNA RNA DNA Protein . Whish of the following hest defines evolution * A ceriain group of animals that do not accumulate adaptations overtime, making themo survive in their environment h. A certain group of animals accumulate adaptations overtime, making them better sined to thei environment e. A sudden mutation in the genes of an individual, causing them to suddenly become beter suined to the environment d Nature selects for the worse trait to survive and reproduce to pass on its favorable genes Yeah, I do not know e, 4. Increase in antibiotie resistant bacteria is most likely due to: a Genetic engineering c. Evolution d. Taxonomy b. Lab creations 5, Which of the following choices concerning enzymes is incorrect? a. They are protein molecules b They are a type of lipid e, Function as an organic catalyst d. Has a substrate where the active site binds to e. More than one seem to be incorrect 6. Which instrument can I use to see detailed surface of a cell and other structures: a Light microscope c. X-ray crystallography d. Scanning electron microscope b. Transmission electron microscope Some scientists believe that the chloroplast and mitochondria were microorganisms that were engulfed by our cells and the cells of plants and they continue to live within these cells today. What theory is this based upon? a. Parasitism theory b. Encumbrance mutualistic theory Which organelle is found in both plants and animals: a. Chloroplast b. Centriole Which organelle is found in both eukaryotic cells and prokaryotic cells: 7. c. Endosymbiotic theory d. Virology theory 8. c. Wall made of cellulose d. ATP e Mitochondria 9. a. Golgi apparatus b. Nucleolus c. Ribosomes d. plasma membrane 10. Which of the following is a molecule but not a compound? C. d. H202 II. The first law of thermodynamics states that

Explanation / Answer

1. e

All given properties are exactly defining the characteristics of a biological "cell" - the basic fundamental body.

2. a

Information about characteristics of an organism is stored in a genetic material (DNA or RNA). According to central dogma, this information is first trancribed into RNA from DNA and then through translation protein are formed.

3. b

According to the enviromental conditions and availability of resources, the best fit organisms to that environment get adapted over the time period.

4. c

Increase in Antibiotic resistant bacteria is most likely due to evolution. Overprescription of Antibiotics makes certain bacteria resistant to them through the process of natural selection.

5. b

Most of the enzymes are protienaceous in nature and generally catalyze the reaction. Enzymes involved in reactions occuring in our body are categorised as Organic catalyst.

6. d

Detailed 3-D surface of a cell and other structures can be visualized using SEM (Scanning Electron Microscope. The image is based on the electrons scattered by the specimen.

7. c

Endosymbiotic theory - given by Lynn Margulis. The theory some how revolves around the evolution process, that a prokaryotic cell (mitochondria and Chloroplast) ended up living inside the eukaryotic cell, survived there and then adapted for a particular function.

8. e

Mitochondria is an organelle found in eukaryotic organisms, responsible for formation of ATP. It is also known as power house of a cell.

9. c

Ribosomes are not axactly organelles, but commonly they are called as organelle, helps the cell in the synthesis of proteins.Ribosomes are basically macromolecules made up of proteins and RNA.

10. c

N2 is a molecule but not a compound because it contains only single element.

11. 1st law of thermodynamics is Law of conservation of energy. It states that energy can neither be created nor be destroyed, it can only be transformed from one form to another.

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