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Mid-Term Review For each statement, write true or false
If the answer is false, write WHY it is false
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1 All prokaryotes and eukaryotes store hereditary information (also known as DNA)
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2 All prokaryotes and eukaryotes have organelles that help control cell processes
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3 All prokaryotes and eukaryotes use the process of cellular respiration to release energy
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4 All prokaryotes and eukaryotes move
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5 Bacteria are an example of prokaryotes
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6 Prokaryotes are smaller than eukaryotes because they don’t have a nucleus or organelles
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7 Prokaryotes and eukaryotes both have a nucleus
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8 Prokaryotes and eukaryotes both have cell membranes
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9 All prokaryotes and all eukaryotes have a cell wall
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10 The four types of macromolecules are water, carbohydrates, proteins, and nucleic acids
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11 The reason carbon is an ideal central element for macromolecules is that it can form large, diverse molecules
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12 Enzymes are an example of a carbohydrate
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13 Carbohydrates store information
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14 Carbohydrates store energy for short-term use
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15 Carbohydrates store energy for long-term use
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16 The role of an enzyme is to speed up a chemical reaction
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17 Enzymes provide energy for reactions
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18 pH and temperature can affect enzymes by changing the enzyme’s shape
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19 If you were measuring the volume of a liquid, you would use units like meter or millimeter
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20 Photosynthesis occurs in plants and animals
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21 Cellular respiration occurs in plants and animals
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22 Photosynthesis and cellular respiration both transform energy
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23 Photosynthesis and cellular respiration both require light energy
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24 When proteins need energy to move something across the membrane, they use ADP as an energy source
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25 When molecules like carbon dioxide or oxygen move across a cell membrane, this is called osmosis
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26 When molecules move freely across a cell membrane, that is because there is a concentration gradient or difference in concentrations
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27 When a cell is placed in a hypertonic solution, water will leave the cell
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28 The rough endoplasmic reticulum makes nucleic acids
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29 Old cell materials are broken down by enzymes stored inside of lysosomes
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30 The golgi body packages proteins into vesicles
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31 The rough endoplasmic reticulum helps to determine which proteins to synthesize
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32 Sweating is an example of homeostasis
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33 Every hypothesis must be able to be tested using research or experiments
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34 Every hypothesis should test multiple variables
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35 All living things move
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36 All living things breathe in oxygen
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37 All living things are made of many cells
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38 All living things use energy
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39 A neutral solution has a pH of 10
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40 Basic solutions have a pH of less than 7
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41 Water is an acid
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42 Water is a non-polar molecule
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43 Water has a low heat capacity
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44 Water is both cohesive (sticks to other water molecules) and adhesive (sticks to different molecules)
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45 In a chemical reaction, the materials that enter a reaction are called products
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46 Photosynthesis occurs in the chloroplast
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47 Animal cells have chloroplasts
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48 The part of a cell that controls the cell’s activities is called the nucleus
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49 Energy is released when ADP is converted to ATP
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50 Cells are the basic unit of life
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51 Cellular respiration converts oxygen and glucose into carbon dioxide and water
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52 During photosynthesis, plants absorb oxygen and produce carbon dioxide
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53 Proteins are long chains of amino acids
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54 Carbohydrates are made of carbon, hydrogen, and nitrogen
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55 Photosynthesis requires light
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56 Even if plants aren’t in the light, they still use the process of photosynthesis
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57 If a hypothesis is rejected, that means it was not correct.
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58 Aquatic plants use photosynthesis just like plants that live on land
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59 Snails do not use oxygen for cellular respiration because they live under water
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60 In an experiment, the variable that is different for each experimental group is called the independent variable
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Answer Key Check your answers on your notebook paper
Really THINK about why you got a question wrong and what you need to do to correct your understanding
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1 All prokaryotes and eukaryotes store hereditary information (also known as DNA) TRUE
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2 All prokaryotes and eukaryotes have organelles that help control cell processes False Prokaryotes don’t have organelles (like the golgi or endoplasmic reticulum)
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3 All prokaryotes and eukaryotes use the process of cellular respiration to release energy False Some organisms use fermentation.
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4 All prokaryotes and eukaryotes move False
Movement is not a characteristic that all living things share
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5 Bacteria are an example of prokaryotes True
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6 Prokaryotes are smaller than eukaryotes because they don’t have a nucleus or organelles True
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7 Prokaryotes and eukaryotes both have a nucleus False
The DNA of prokaryotic cells isn’t contained in a nucleus- they don’t have one
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8 Prokaryotes and eukaryotes both have cell membranes True
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9 All prokaryotes and all eukaryotes have a cell wall False
All prokaryotes have a cell wall Not all eukaryotes have a cell wall Plants do Animals don’t
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10 The four types of macromolecules are water, carbohydrates, proteins, and nucleic acids False The four types of macromolecules are Proteins Lipids Nucleic acids carbohydrates
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11 The reason carbon is an ideal central element for macromolecules is that it can form large, diverse molecules True
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12 Enzymes are an example of a carbohydrate False Enzymes are proteins
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13 Carbohydrates store information False
Nucleic acids store information
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14 Carbohydrates store energy for short-term use True
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15 Carbohydrates store energy for long-term use False
Lipids are the long-term energy storage molecule
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16 The role of an enzyme is to speed up a chemical reaction True
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17 Enzymes provide energy for reaction False
Enzymes don’t provide energy They bring reactants together so that the reaction doesn’t require as much energy to begin with This is known as “lowering the activation energy”
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18 pH and temperature can affect enzymes by changing the enzymes shape
True
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19 If you were measuring the volume of a liquid, you would use units like meter or millimeter False Meter and millimeter measure distance For volume, you’d use liter, milliliter, or cubic centimeter
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20 Photosynthesis occurs in plants and animals False
Animal cells don’t use the process of photosynthesis
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21 Cellular respiration occurs in plants and animals True
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22 Photosynthesis and cellular respiration both transform energy True
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23 Photosynthesis and cellular respiration both require light energy
False Cellular respiration does not require light energy
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24 When proteins need energy to move something across the membrane, they use ADP as an energy source. False They use ATP
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25 When molecules like carbon dioxide or oxygen move across a cell membrane, this is called osmosis False This type of movement is called diffusion Osmosis is strictly the movement of water molecules
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26 When molecules move freely across a cell membrane, that is because there is a concentration gradient or difference in concentrations. True
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27 When a cell is placed in a hypertonic solution, water will leave the cell True
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28 The rough endoplasmic reticulum makes nucleic acids False
It helps assemble and transport proteins
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29 Old cell materials are broken down by enzymes stored inside of lysosomes. True
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30 The Golgi Body packages proteins into vesicles True
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31 The rough endoplasmic reticulum helps to determine which proteins to synthesize True
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32 Sweating is an example of homeostasis True
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33 Every hypothesis must be able to be tested using research or experiments True
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34 Every hypothesis should test multiple variables False
Usually a hypothesis only involves one variable’s impact on another
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35 All living things move. False Not all living things move
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36 All living things breathe in oxygen. False
For example, plants are living and they don’t take in oxygen
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37 All living things are made of many cells False
Some things are made of only one cell, like yeast or bacteria
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38 All living things use energy True
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39 A neutral solution has a pH of 10 False
Neutral solutions like pure water have a pH of 7
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40 Basic solutions have a pH of less than 7 False
Bases have a pH between 7 and 14
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41 Water is an acid False Water is neutral
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42 Water is a non-polar molecule False
Water is polar, meaning one end has a slightly negative charge and one end has a slightly positive charge
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43 Water has a low heat capacity False
Water has a high heat capacity, meaning that it can absorb a lot of energy without a big change in temperature
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44 Water is both cohesive (sticks to other water molecules) and adhesive (sticks to different molecules) True
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45 In a chemical reaction, the materials that enter a reaction are called products False The materials that enter a reaction are called reactants Products are what are produced during a reaction (the end result)
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46 Photosynthesis occurs in the chloroplast True
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47 Animal cells have chloroplasts False
Animal cells do not have chloroplasts
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48 The part of a cell that controls the cell’s activities is called the nucleus True
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49 Energy is released when ADP is converted to ATP False
Energy is released when ATP is converted to ADP after one of the phosphate bonds in ATP is broken
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50 Cells are the basic unit of life True
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51 Cellular respiration converts oxygen and glucose into carbon dioxide and water True
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52 During photosynthesis, plants absorb oxygen and produce carbon dioxide False Plants absorb carbon dioxide and water and produce oxygen and glucose during photosynthesis
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53 Proteins are long chains of amino acids True
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54 Carbohydrates are made of carbon, hydrogen, and nitrogen False
Carbohydrates are made of carbon, hydrogen, and oxygen
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55 Photosynthesis requires light True
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56 Even if plants aren’t in the light, they still use the process of photosynthesis False Photosynthesis require light No light = no photosynthesis
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57 If a hypothesis is rejected, that means it was not correct. True
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58 Aquatic plants use photosynthesis just like plants that live on land True
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59 Snails do not use oxygen for cellular respiration because they live under water False Aquatic animals still use oxygen even though they are under water They absorb the oxygen that is dissolved in water
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60 In an experiment, the variable that is different for each experimental group is called the independent variable True
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Suggested Study Time (per day)
How did you do??? # Of Questions Correct Grade Comment Suggested Study Time (per day) 54-60 A Fantastic! 1 hour 48-53 B Nice job! 1 hour 15 min 42-47 C Pretty good 1 hour 30 min 36-41 D Have a lot of work to do 1 hour 45 min 35 and Below F Uh oh- start studying ASAP 2 hours
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