{"id":237,"date":"2014-10-16T09:45:38","date_gmt":"2014-10-16T09:45:38","guid":{"rendered":"http:\/\/blogs.glowscotland.org.uk\/gc\/hyndsecbio5u1hwrk\/?page_id=237"},"modified":"2014-12-07T07:48:25","modified_gmt":"2014-12-07T07:48:25","slug":"237","status":"publish","type":"page","link":"https:\/\/blogs.glowscotland.org.uk\/gc\/hyndsecbio5u1hwrk\/237\/","title":{"rendered":"MCQ 1_2B Osmosis & Diffusion"},"content":{"rendered":"

Marking Guide<\/a><\/p>\n\n\n\n\n\n\n\n
1.<\/span><\/em><\/td>\nA plant cell, which was placed in a liquid, lost water by osmosis. When compared to the liquid, the cell contents are described as being<\/span> \u00a0<\/span><\/td>\n<\/tr>\n
\"\"<\/a><\/td>\nA.<\/span><\/td>\nplasmolysed<\/span><\/td>\n<\/tr>\n
\"\"<\/a><\/td>\nB.<\/span><\/td>\nhypertonic<\/span><\/td>\n<\/tr>\n
\"\"<\/a><\/td>\nC.<\/span><\/td>\nhypotonic<\/span><\/td>\n<\/tr>\n
\"\"<\/a><\/td>\nD.<\/span><\/td>\nflaccid<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

\u00a0<\/p>\n\n\n\n\n
\u00a0<\/td>\n<\/tr>\n
2.<\/span><\/em><\/td>\n\n
The diagram below shows the initial diameter of a potato disc. The potato disc was placed in a hypertonic solution for one hour.<\/span><\/div>\n\n\n\n\n
\"\"<\/a><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Which of the diagrams below correctly shows the change in the diameter of the disc?\u00a0\u00a0\u00a0<\/td>\n<\/tr>\n

\"\"<\/a><\/td>\nA.<\/span><\/td>\n\n\n\n\n
\"\"<\/a><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/td>\n\"\"<\/a><\/td>\nB.<\/span><\/td>\n\n\n\n\n\n
\"\"<\/a><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/td>\n<\/tr>\n
\"\"<\/a><\/td>\nC.<\/span><\/td>\n\u00a0\"\"<\/a><\/td>\n\"\"<\/a><\/td>\nD.<\/span><\/td>\n\"\"<\/a><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n\n\n\n\n\n
\u00a0<\/td>\n<\/tr>\n
3.<\/span><\/em><\/td>\nWhen animal cells are placed in a hypertonic solution they<\/span> \u00a0<\/span><\/td>\n<\/tr>\n
\"\"<\/a><\/td>\nA.<\/span><\/td>\nshrink<\/span><\/td>\n<\/tr>\n
\"\"<\/a><\/td>\nB.<\/span><\/td>\nburst<\/span><\/td>\n<\/tr>\n
\"\"<\/a><\/td>\nC.<\/span><\/td>\nbecome turgid<\/span><\/td>\n<\/tr>\n
\"\"<\/a><\/td>\nD.<\/span><\/td>\nbecome plasmolysed<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n\n\n\n\n\n
\u00a0<\/td>\n<\/tr>\n
4.<\/span><\/em><\/td>\nWhich structural feature is common to both plant and animal cells? <\/span>\u00a0<\/span><\/td>\n<\/tr>\n
\"\"<\/a><\/td>\nA.<\/span><\/td>\nCell wall<\/span><\/td>\n<\/tr>\n
\"\"<\/a><\/td>\nB.<\/span><\/td>\nChloroplast<\/span><\/td>\n<\/tr>\n
\"\"<\/a><\/td>\nC.<\/span><\/td>\nCell membrane<\/span><\/td>\n<\/tr>\n
\"\"<\/a><\/td>\nD.<\/span><\/td>\nLarge central vacuole<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n\n\n\n\n\n
\u00a0<\/td>\n<\/tr>\n
5.<\/span><\/em><\/td>\nWhat does a plant cell contain that an animal cell does not? <\/span>\u00a0<\/span><\/td>\n<\/tr>\n
\"\"<\/a><\/td>\nA.<\/span><\/td>\ncytoplasm<\/span><\/td>\n<\/tr>\n
\"\"<\/a><\/td>\nB.<\/span><\/td>\nnucelus<\/span><\/td>\n<\/tr>\n
\"\"<\/a><\/td>\nC.<\/span><\/td>\nlarge vacuole<\/span><\/td>\n<\/tr>\n
\"\"<\/a><\/td>\nD.<\/span><\/td>\ncell membrane<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n\n\n\n\n\n
\u00a0<\/td>\n<\/tr>\n
6.<\/span><\/em><\/td>\nBoth animal and plant cells usually have a <\/span>\u00a0<\/span><\/td>\n<\/tr>\n
\"\"<\/a><\/td>\nA.<\/span><\/td>\nnucleus, cell membrane and cytoplasm<\/span><\/td>\n<\/tr>\n
\"\"<\/a><\/td>\nB.<\/span><\/td>\nnucleus, cell wall and chloroplasts<\/span><\/td>\n<\/tr>\n
\"\"<\/a><\/td>\nC.<\/span><\/td>\nnucleus, vacuole and cell wall<\/span><\/td>\n<\/tr>\n
\"\"<\/a><\/td>\nD.<\/span><\/td>\nnucleus, cell wall and cytoplasm<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n\n\n\n\n\n
\u00a0<\/td>\n<\/tr>\n
7.<\/span><\/em><\/td>\nAn important feature of the nucleus is that it <\/span>\u00a0<\/span><\/td>\n<\/tr>\n
\"\"<\/a><\/td>\nA.<\/span><\/td>\nis full of water<\/span><\/td>\n<\/tr>\n
\"\"<\/a><\/td>\nB.<\/span><\/td>\nhas a round shape<\/span><\/td>\n<\/tr>\n
\"\"<\/a><\/td>\nC.<\/span><\/td>\ncontains information<\/span><\/td>\n<\/tr>\n
\"\"<\/a><\/td>\nD.<\/span><\/td>\nmakes a thin barrier<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n\n\n\n\n\n
\u00a0<\/td>\n<\/tr>\n
8.<\/span><\/em><\/td>\nRed blood cells burst when they are placed in water because<\/span> \u00a0<\/span><\/td>\n<\/tr>\n
\"\"<\/a><\/td>\nA.<\/span><\/td>\nthe cell contents are hypotonic to the water<\/span><\/td>\n<\/tr>\n
\"\"<\/a><\/td>\nB.<\/span><\/td>\nthe cell contents are isotonic to the water<\/span><\/td>\n<\/tr>\n
\"\"<\/a><\/td>\nC.<\/span><\/td>\nthe water is hypotonic to the cell contents<\/span><\/td>\n<\/tr>\n
\"\"<\/a><\/td>\nD.<\/span><\/td>\nthe water is hypertonic to the cell contents<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n\n\n\n\n\n
\u00a0<\/td>\n<\/tr>\n
9.<\/span><\/em><\/td>\nWhich term best describes how water enters and leaves cells?<\/span><\/td>\n<\/tr>\n
\"\"<\/a><\/td>\nA.<\/span><\/td>\ndiffusion<\/span><\/td>\n<\/tr>\n
\"\"<\/a><\/td>\nB.<\/span><\/td>\nosmosis<\/span><\/td>\n<\/tr>\n
\"\"<\/a><\/td>\nC.<\/span><\/td>\nevaporation<\/span><\/td>\n<\/tr>\n
\"\"<\/a><\/td>\nD.<\/span><\/td>\npermeation<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n\n\n\n\n\n
\u00a0<\/td>\n<\/tr>\n
10.<\/span><\/em><\/td>\nWhich statement best describes a selectively permeable membrane?<\/span><\/td>\n<\/tr>\n
\"\"<\/a><\/td>\nA.<\/span><\/td>\nit lets all substances through<\/span><\/td>\n<\/tr>\n
\"\"<\/a><\/td>\nB.<\/span><\/td>\nit does not let substances through<\/span><\/td>\n<\/tr>\n
\"\"<\/a><\/td>\nC.<\/span><\/td>\nit is equally permeable to all substances<\/span><\/td>\n<\/tr>\n
\"\"<\/a><\/td>\nD.<\/span><\/td>\nit lets some substances through but not others<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n\n\n\n\n\n
\u00a0<\/td>\n<\/tr>\n
11.<\/span><\/em><\/td>\nA 5% sugar solution contains<\/span><\/td>\n<\/tr>\n
\"\"<\/a><\/td>\nA.<\/span><\/td>\n5% water and 95% sugar<\/span><\/td>\n<\/tr>\n
\"\"<\/a><\/td>\nB.<\/span><\/td>\n5% sugar and 95% water<\/span><\/td>\n<\/tr>\n
\"\"<\/a><\/td>\nC.<\/span><\/td>\n95% water and 95% sugar<\/span><\/td>\n<\/tr>\n
\"\"<\/a><\/td>\nD.<\/span><\/td>\n5% water and 5% sugar<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
Three plant cells P, Q and R are found on a microscope slide.<\/h5>\n
Cell P is hypotonic to cell Q.
\nCell R is hypertonic to cell Q.<\/h5>\n\n\n\n\n\n\n\n\n
\u00a0<\/td>\n<\/tr>\n
12.<\/span><\/em><\/td>\n\n
Which cell has the highest water concentration?\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0<\/span><\/div>\n<\/td>\n<\/tr>\n
\"\"<\/a><\/td>\nA.<\/span><\/td>\nP<\/span><\/td>\n<\/tr>\n
\"\"<\/a><\/td>\nB.<\/span><\/td>\nQ<\/span><\/td>\n<\/tr>\n
\"\"<\/a><\/td>\nC.<\/span><\/td>\nR<\/span><\/td>\n<\/tr>\n
\"\"<\/a><\/td>\nD.<\/span><\/td>\nThey all have the same water concentration<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n\n\n\n\n\n
\u00a0<\/td>\n<\/tr>\n
13.<\/span><\/em><\/td>\nWhich of the following best explains why red blood cells burst when they are placed in water?<\/span><\/td>\n<\/tr>\n
\"\"<\/a><\/td>\nA.<\/span><\/td>\nwater enters the cell by osmosis, from a low water concentration to a higher water concentration inside the cell<\/span><\/td>\n<\/tr>\n
\"\"<\/a><\/td>\nB.<\/span><\/td>\nwater leaves the cell by osmosis, from a high water concentration to a lower water concentration outside the cell<\/span><\/td>\n<\/tr>\n
\"\"<\/a><\/td>\nC.<\/span><\/td>\nwater enters the cell by osmosis, from a high water concentration to a lower water concentration inside the cell<\/span><\/td>\n<\/tr>\n
\"\"<\/a><\/td>\nD.<\/span><\/td>\nwater leaves the cell by osmosis, from a high water concentration to a lower water concentration outside the cell<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n\n\n\n\n\n
\u00a0<\/td>\n<\/tr>\n
14.<\/span><\/em><\/td>\n\n
A sample of red blood cells were place in a solution of unknown concentration. After 20 minutes, the cells were examined under the microscope.Of 400 cells examined, 160 had burst.From this experiment, what percentage of the red blood cells were hypertonic to the solution they were placed in?<\/span><\/div>\n

\u00a0\u00a0\u00a0<\/td>\n<\/tr>\n

\"\"<\/a><\/td>\nA.<\/span><\/td>\n40%<\/span><\/td>\n<\/tr>\n
\"\"<\/a><\/td>\nB.<\/span><\/td>\n60%<\/span><\/td>\n<\/tr>\n
\"\"<\/a><\/td>\nC.<\/span><\/td>\n154%<\/span><\/td>\n<\/tr>\n
\"\"<\/a><\/td>\nD.<\/span><\/td>\n250%<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Choose letter A, B, C or D from the following diagram to answer questions 15 and 16 below.
\nThe diagram shows the ways in which molecules may move into or out of an animal cell.<\/p>\n

\"\"<\/a><\/p>\n\n\n\n\n
\u00a0<\/td>\n<\/tr>\n
15.<\/span><\/em><\/td>\n\n
Which of the molecules could represent the movement of carbon dioxide?\u00a0<\/span><\/div>\n\n\n\n\n
\u00a0<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/td>\n<\/tr>\n
\"\"<\/a><\/td>\nA.<\/span><\/td>\nA<\/span><\/td>\n\"\"<\/a><\/td>\nB.<\/span><\/td>\nB<\/span><\/td>\n\"\"<\/a><\/td>\nC.<\/span><\/td>\nC<\/span><\/td>\n\"\"<\/a><\/td>\nD.<\/span><\/td>\nD<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n\n
\u00a0<\/td>\n<\/tr>\n
16.<\/span><\/em><\/td>\n\n
Which of the\u00a0molecules could represent the movement of oxygen?\u00a0<\/span><\/div>\n\n\n\n\n
\u00a0<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/td>\n<\/tr>\n
\"\"<\/a><\/td>\nA.<\/span><\/td>\nA<\/span><\/td>\n\"\"<\/a><\/td>\nB.<\/span><\/td>\nB<\/span><\/td>\n\"\"<\/a><\/td>\nC.<\/span><\/td>\nC<\/span><\/td>\n\"\"<\/a><\/td>\nD.<\/span><\/td>\nD<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n\n\n\n\n\n
\u00a0<\/td>\n<\/tr>\n
17.<\/span><\/em><\/td>\n\n
Stentor is a single-celled organism living in freshwater ponds. It gains water by osmosis, which is removed by contractile vacuoles, which gradually fill and are then emptied by the Stentor.In an experiment, Stentor were placed in solutions of increasing salt concentration. The contractile vacuoles were found to empty less often.The best explanation for this observation is<\/span><\/div>\n

\u00a0\u00a0\u00a0<\/td>\n<\/tr>\n

\"\"<\/a><\/td>\nA.<\/span><\/td>\nless water is entering the Stentor<\/span><\/td>\n<\/tr>\n
\"\"<\/a><\/td>\nB.<\/span><\/td>\nless salt is entering the Stentor<\/span><\/td>\n<\/tr>\n
\"\"<\/a><\/td>\nC.<\/span><\/td>\nthe salt has poisoned the Stentor<\/span><\/td>\n<\/tr>\n
\"\"<\/a><\/td>\nD.<\/span><\/td>\nsalt blocks the pores in the cell membrane<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n\n\n\n\n\n
\u00a0<\/td>\n<\/tr>\n
18.<\/span><\/em><\/td>\nThe cell membrane contains<\/span><\/td>\n<\/tr>\n
\"\"<\/a><\/td>\nA.<\/span><\/td>\ncellulose and protein<\/span><\/td>\n<\/tr>\n
\"\"<\/a><\/td>\nB.<\/span><\/td>\nphospholipids and cellulose<\/span><\/td>\n<\/tr>\n
\"\"<\/a><\/td>\nC.<\/span><\/td>\nphospholipids and proteins<\/span><\/td>\n<\/tr>\n
\"\"<\/a><\/td>\nD.<\/span><\/td>\nproteins, phospholipids and cellulose<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n\n\n\n\n\n\n
\u00a0<\/td>\n<\/tr>\n
19.<\/span><\/em><\/td>\n\"\"<\/a>A student was studying the responses of cells to solutions of varying salt concentrations.
\nWhich solution below would cause no change in cell size?<\/span><\/td>\n<\/tr>\n
\"\"<\/a><\/td>\nA.<\/span><\/td>\n\"\"<\/a><\/span><\/td>\n\"\"<\/a><\/td>\nB.<\/span><\/td>\n\"\"<\/a><\/span><\/td>\n<\/tr>\n
\"\"<\/a><\/td>\nC.<\/span><\/td>\n\"\"<\/a><\/span><\/td>\n\"\"<\/a><\/td>\nD.<\/span><\/td>\n\u00a0\"\"<\/a><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

Marking Guide 1. A plant cell, which was placed in a liquid, lost water by osmosis. When compared to the liquid, the cell contents are described as being \u00a0 A. plasmolysed B. hypertonic C. hypotonic D. flaccid \u00a0 \u00a0 2. The diagram below shows the initial diameter of a potato disc. The potato disc was … Continue reading “MCQ 1_2B Osmosis & Diffusion”<\/span><\/a><\/p>\n","protected":false},"author":2454,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"open","ping_status":"open","template":"","meta":{"footnotes":""},"class_list":["post-237","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/blogs.glowscotland.org.uk\/gc\/hyndsecbio5u1hwrk\/wp-json\/wp\/v2\/pages\/237","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blogs.glowscotland.org.uk\/gc\/hyndsecbio5u1hwrk\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/blogs.glowscotland.org.uk\/gc\/hyndsecbio5u1hwrk\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/blogs.glowscotland.org.uk\/gc\/hyndsecbio5u1hwrk\/wp-json\/wp\/v2\/users\/2454"}],"replies":[{"embeddable":true,"href":"https:\/\/blogs.glowscotland.org.uk\/gc\/hyndsecbio5u1hwrk\/wp-json\/wp\/v2\/comments?post=237"}],"version-history":[{"count":33,"href":"https:\/\/blogs.glowscotland.org.uk\/gc\/hyndsecbio5u1hwrk\/wp-json\/wp\/v2\/pages\/237\/revisions"}],"predecessor-version":[{"id":241,"href":"https:\/\/blogs.glowscotland.org.uk\/gc\/hyndsecbio5u1hwrk\/wp-json\/wp\/v2\/pages\/237\/revisions\/241"}],"wp:attachment":[{"href":"https:\/\/blogs.glowscotland.org.uk\/gc\/hyndsecbio5u1hwrk\/wp-json\/wp\/v2\/media?parent=237"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}