Pate's First Semester Biology Final Exam
Quiz by Hope Pate
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- Q1
The fluid-mosaic model is a model of the cell membrane. It suggests that the membrane is primarily composed of lipids and proteins. Choose the BEST explanation of the function of proteins in the cell membrane.
Proteins package and sort molecules to be sent in vesicles.
Proteins read messenger RNA to assemble amino acids.
Proteins provide a hydrophilic head so that water can enter the cell.
Proteins allow substances to cross the plasma membrane by active transport.
120s - Q2
What would be a possible cause of a cell's inability to make proteins?
Many of the cell's ribosomes were destroyed.
The cell was unable to produce ATP.
The cell was unable to photosynthesize.
The cell was unable to divide.
120s - Q3
Which of the following is a natural polymer containing repeating units known as nucleotides?
fatty acid
DNA
enzyme
glucose
120s - Q4
Which statement best describes the enzyme represented in the graphs?
This enzyme works best at a temperature of 10°C and a pH of 5.
This enzyme works best at a temperature of 55°C and a pH of 11.
This enzyme works best at a temperature of 35°C and a pH of 8.
This enzyme works best at a temperature of 45°C and a pH of 10.
120s - Q5
The diagram shows a beaker of water and molecules of red dye at the beginning of an experiment and the same beaker of water and molecules of red dye after 30 minutes. Which of the following best explains what happened?
The molecules of water moved by osmosis from an area of higher concentration to an area of lower concentration.
The molecules of water moved by active transport from an area of lower concentration to an area of higher concentration.
The molecules of red dye moved by diffusion from a higher concentration to a lower concentration.
The molecules of red dye moved by active transport from an area of higher concentration to an area of lower concentration.
120s - Q6
The diagram below shows the relationship between photosynthesis and cellular respiration and the organelles in which they occur. Which statement describes how photosynthesis and cellular respiration are interrelated?
Oxygen is produced during cellular respiration and stored during photosynthesis.
Carbon dioxide and water released by cellular respiration are used in photosynthesis.
Glucose is used during cellular respiration to produce food that is broken down during photosynthesis.
Photosynthesis releases the energy that is stored during the process of cellular respiration.
120s - Q7
An investigation is set up to study the movement of water through a membrane. The results are shown in the diagram. The beaker with 100% water in it is an isotonic solution. What type of solution is in the beaker that has 80% water and 20% starch in it?
homogeneous
hypertonic
heterogeneous
hypotonic
120s - Q8
A student is studying cell structures and organelles. He wants to create an explanation of how the various organelles interact to meet the cell’s need for proteins while preventing too many proteins from collecting inside the cell. Which of the following would be the BEST explanation for the student to use?
The ribosomes that cover the rough endoplasmic reticulum manufacture proteins. These proteins are sent to lysosomes where they are modified and sorted based on their destinations. Proteins no longer needed by the cell are broken down by the Golgi apparatus.
The ribosomes that cover the rough endoplasmic reticulum manufacture proteins. These proteins are sent to the Golgi apparatus where they are modified and sorted based on their destinations. Proteins no longer needed by the cell are broken down by lysosomes.
The surface of the smooth endoplasmic reticulum manufactures proteins. These proteins are sent to the Golgi apparatus where they are modified and sorted based on their destinations. Proteins no longer needed by the cell are broken down by lysosomes.
The ribosomes that cover the Golgi apparatus manufacture proteins. These proteins are sent to the smooth endoplasmic reticulum where they are modified and sorted based on their destinations. Proteins no longer needed by the cell are broken down by lysosomes.
120s - Q9
The powerhouse of the cell is the
nucleus
mitochondria
Ribosomes
Golgi Apparatus
120s - Q10
There are two types of this organelle in the cell. Which type is the site of protein synthesis?
Golgi Apparatus
plasma membrane
The smooth ER
The rough ER
120s - Q11
Which level of organization includes organisms of the same species?
community
population
biosphere
ecosystem
60s - Q12
Biodiversity is...
the variety of life found in a particular habitat, ecosystem, or the world.
members of the same species living in a particular area
the living portion of the Earth
the biotic factors found in a certain area
120s - Q13
Examples of limiting factors are...
biotic and abiotic factors
frogs and beavers
lack of resources and disease
rocks and soil
120s - Q14
Autotrophs make their own food through the process of photosynthesis. An example of an autotroph is...
a rabbit
a bear
algae
deer
120s - Q15
Which statement is true about how energy flows in an ecosystem?
The energy from the sun flows to producers to consumers.
Heterotrophs get most of the energy.
Energy levels increase as it reaches the top of the foodchain.
Energy flows from heterotrophs to autotrophs.
120s
