Question

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energy in the from the sun, and store that enerngy as . Plants are able to captone chemical bonds of glucose. a potential:potential kinetic the following is a funsction of cholesterol in the plasma nuidity of the membr passage of substances into and out of the cell d prodection of the membrane prokhryotic or eukaryotic? 9. If you found a iey cell under a microscope how could you determine if that cell was of a a. Look for the Determine if one or the other has ribosomes Deternsine if one or the other has DNA if one or the other has a mucleus 0. Which of the following is NOT a component of biological membranes? b proteins glycocalyx 11. Mitochondria is where lots of this is made a Glucose d. Oxygen 12. High density liproteins (CHDLg) and low density lipoproteins and (LDLs) are examples of a glycerols d. carbohydrates e. none of the above 13. Plasma membranes are selectively permeable. This means that.. anything can pass into or out of a cell as long as the membrane is intact and the cell is healthy b glucose cannot enter the cell c. nothing can cross the plasma membrane unless aided cholesterol cannot enter the cell. e. the plasma membrane selectively allows some substances to enter or leave a cell. le Lell energy is describe metabolic reactions where molecules are broken down and 21. You arg stranded on a deserted island without any fresh water. You decide to drink the ocean water. The occan is roughly 3.0% Naa Your cells have about 085% Nact which way will water move acos te cell mentines if you foolishly decide to drink the ocean water een moves out of your cells water moves into your cells c there is no net movement of water 22. The cells of an ant and the cells of an elephant are, on average, the same size. The elephant has more cells that accounts for its larger size. What is the main advantage of keeping the cell size small even when building a large organisn? small cells are easier to move around than large ones a b. small cells cannot be infected by viruses mall cells have higher surface area to volume ratios, than large cells, thus maximizing the import/export of d it takes fewer molecules to build a small cell e. small cells can change shape easily 23. Which of the following can affect the rate of an enzymatic reaction? All tre atole b. pll of the above e None of the above because the rate of an enzymatic reaction can't be altered 24. Tay-Sachs disease results from the accumulation of fatty deposits within neurons, when normally they should be broken down within these cels. The organelle that would be defective in Tay-Sachs would most likely be the: a.. mitochondria c. ribosome. e. golgi complex 25 Which of these biological molecules are likely made in the smooth endoplasmic reticulum? amino acids and proteins b. nucleotides and amino acids glacose and Sucrose fatty acids and cholesteral e cellulose 26. Enzymes enable catalytic reactions by... A. Inducing strain in the substrate B. Orienting the substrate Temporarily adding chemical groups to the substrate All of the above Е.none ofthe above 27. Plasmodesmata and gap junctions are similar in that they a provide structural support to cells b. are both involved in protein synthesis form a protective lining around cells d.) allow cells to communicate with esch other 28. During an enzymatic reaction the substrate binds to the enzyme is of the enzyme. After the reaction, the catalytic (active) site: destroyed B atalytie (active) site: regenerated primary site: regenerated D. secondary site: destroyed E. None of the above 29. Patients with cystic fibrosis (CF) have trouble clearing fluid from their lungs because the mucus is too thick to clear. Normally a chlorine ion pump in lung cells forces chlorine ions from inside of the ce'll to outside of the cell. The clorine pump does not work in patients with CF. If a properly functioning chlorine ion pump normally pumps chlorine ions from inside ofthe cell to the outside ofthe cell, which way will water go? rom inside of the cell to the outside b. from outside of the cell to the inside c water will flow in and out of the cell at the same rate d. water will not cross the plasma membrane at all 30. of the following is an example of potential energy? gradient across a membrane rock rolling down a hill C. hydrogen ions passively flowing through ATP synthase D. heat E. visible light 31. After a protein is synthesized it may need to have sugars and/or lipids attached to it. Which of the folilowing organelles would most likely perform this final processing? b. nucleolus olgt ribosome 0 d. golgi complex none of the above 32. The plasma membrane is composed of several types of biological mioleçules, which are free to move lateraily, and is peppered with both stationary and mobile proteins. This view of the plasma meimbrane is known as the: fluid-mosaic model. b. phospholipid bilayer model. c. peppered membrane model. d. permeable membrane model. 33. A solvent, like water, diffusing across a semi-permeable imembrane is called. a. pinocytosis b. facilitative diffusion c. active transport Chosmosis e. phagocytosis

Answer 1

7. Answer: kinetic energy: potential energy

Plant capture kinetic energy that is light from the sun and store that energy in the potential energy in the chemical bonds of glucose

8. Answer: to maintain the fluidity of the membrane

Cholesterol help the cell to maintain the fluidity against the adverse temperature (cold or hot) beyond the organisms range.

9. Answer: if one and other has nucleus

Nuclear envelope is absent in prokaryotic cells, while it is present in eukaryotic cells. This is distinguishing feature

10. Answer: DNA

Phospholipid, protein and glycocalyx are component of the cell membrane. While DNA is present inside the nucleus. Protein are forming channel in the membrane.

11. Answer: ATP

Mitochondria is also called as power of house of the cell. ATP's are generated in the mitochondria.

12. Answer: lipoprotein

13. Answer: the plasma membrane selectively allows some substances to enter or leave the cell

Selectively permeability means having control on the passing of the substances

20. Answer: exergonic reaction

Exergonic reaction are spontaneous and release energy, which is utilize by the cell.

21. Answer: water moves out of your cells.

When we take the sea water with high salanity than the cell. Then to maintain the osmotic balance, cell looses water to make the internal environment concentrated as external.

22. Answer: c option

Small cell size can handle the concentration gradient effectively

23. Answer: all of the above

24. Answer: lysosome

Hexosaaminidase enzyme is lacking in individual.