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WorksheetsUnit Study Guide/ Practice Test
Total questions: 37
Worksheet time: 20mins
In the animal cell structure, the cell membrane is composed of a phospholipid bilayer that separates the cell from its surroundings. Which of the following is also present in the cell membrane?
Proteins
ATP
Vacuoles
Mitochondria
Lysosomes are organelles that contain enzymes. Which of the following is a function of lysosomes?
Lysosomes build lipids, carbohydrates, and proteins.
Lysosomes package lipids, carbohydrates, and proteins.
Lysosomes break down lipids, carbohydrates, and proteins.
Lysosomes store lipids, carbohydrates, and proteins.
In facilitated diffusion, what are the special channels that help substances cross the cell membrane made off?
Carbon Bonds
Proteins
Nucleic Acids
Water Molecules
What types of cells DO NOT contain a nucleus or membrane- bound organelles?
Eukaryotic
Prokaryotic
Plant
Fungi
Which of the following matches a cell organelle with its function?
Chloroplast- movement
Nucleus- storage of genetic information
Vacuole- energy production
Mitochondria- photosynthesis
Which of the following functions is controlled by the cell membrane?
Excreting waste
Replicating DNA
Producing energy
Assembling proteins
Which of these is the process by which water moves across a selectively permeable membrane?
Osmosis
transpiration
capillary action
active transport
Which group of macromolecules contains enzymes?
Carbohydrates
Proteins
Nucleic Acids
Lipids
How does cellular transport help a cell to maintain homeostasis?
It helps replace cells that are old.
It helps the cell maintain balance.
It helps the cells divide into two cells.
It helps prevent mutations in the cell.
During cellular respiration, molecular bonds are broken in the transfer of matter that occurs. Which statement accurately describes this process?
The bonds in carbon dioxide and water molecules are broken to form glucose and oxygen molecules.
The bonds in glucose and oxygen molecules are broken to form water and carbon dioxide molecules.
The bonds in glucose and water molecules are broken to form oxygen and carbon dioxide molecules.
The bonds in carbon dioxide and oxygen molecules are broken to form glucose and water molecules.
If the water molecule concentration outside the cell is higher than the inside of the cell, the solution outside of the cell is ______________.
Hypertonic
Isotonic
Hypotonic
None of the above
Joy took the notes shown below while learning about cells:
1. Forms boundary between a cell and the outside environment
2. Controls the movement of materials into and out of the cell
3. Consists of double layer of phospholipids
She forgot to write the name of the cell structure that her class was studying that day. What structure is described in her notes?
Cell Membrane
Nucleus
Endoplasmic Reticulum
Cell Wall
All Macromolecules are considered to be organic because
They naturally reproduce
They are made up of natural chemical bonds.
They naturally contain carbon.
They contain Nucleic Acids.
Mark places some cells from an onion skin on a microscope slide. He uses a freshwater solution to make the wet- bound slide. When he observes the cells under the microscope for an extended period of time, what is he most likely to see?
The cells have dissolved, destroying the cell walls.
The cells have shrunk within the cell.
The cells have not been affected by the solution.
The cells have swollen, expanding the cell walls.
Cellular respiration occurs in the _______________.
Chloroplast
Mitochondrium
Lysosome
Cell Wall
Photosynthesis occurs in the ______________.
Chloroplast
Mitochondrium
Lysosome
Cell Wall
Which cell organelle is most directly involved with the bonding of amino acids?
Endoplasmic Reticulum
Mitochondrion
Ribosome
Cell Wall
Both lipids and carbohydrates can be used by the cell as
sources of energy
replacements for salts
building blocks for RNA
catalysts for metabolic reactions
Unlike lipids, nucleic acids typically do not
seperate in water
contain sugars
provide energy
direct a cell
The structures of proteins and nucleic acids in living organisms differ in that
proteins can take a variety of shapes, and nucleic acids tend to form linear chains.
proteins tend to form rings, and nucleic acids tend to form globes.
proteins tend to form helices, and nucleic acids tend to take irregular shapes
proteins tend to form branched chains, and nucleic acids can take a variety of shapes
The structures of proteins and nucleic acids in living organisms differ in that
proteins can take a variety of shapes, and nucleic acids tend to from linear chains.
proteins tend to form rings, and nucleic acids tend to form globes.
proteins tend to form helices, and nucleic acids tend to take irregular shapes.
proteins tend to form branched chains, and nucleic acids can take a variety of shapes.
Carbohydrates are usually composed of sequences of carbon (C), hydrogen (H), and oxygen (O). Proteins differ from carbohydrates in that most proteins contain
potassium ( K)
helium (He)
iron ( Fe)
nitrogen ( N)
Two proteins in the same cell perform different functions. This is because they have different sequences of
fatty acids
nucleotides
amino acids
carbohydrates
Sugar is complex molecule made of
sodium, hydrogen, and nitrogen
carbon, hydrogen, and oxygen
sodium and nitrogen, only
carbon and oxygen, only.
What is the process that uses energy to move substances across a partially permeable membrane or concentration gradient?
diffusion
active transport
facilitated diffusion
osmosis
Two processes used to maintain homeostasis by transporting substances into and out of the cell are
diffusion and osmosis
vesicles and transport
diffusion and fluidity
osmosis and turgor
Diffusion does not require the cell to expend ATP. Therefore, diffusion is considered a type of
endocytosis
exocytosis
active transport
passive transport
An important step in cellular respiration
the creation of phosphate
the creation of oxygen
the breakdown of carbon dioxide
the breakdown of glucose
Which of the following explains the cellular function of a ribosome?
It is associated with attaching to the plasma membrane in active transport.
It is directly involved in the bonding of amino acids to synthesize proteins.
It is associated with microtubules and microfilaments to move organelles.
It is directly involved in the storage of energy by converting ADP to ATP/
Lipids and carbohydrates are dissimilar in that
carbohydrates are composed of monomers, and lipids are composed of polymers.
carbohydrates are composed of water and ammonia, and lipids are composed of trisaccharides.
carbohydrates are composed of nucleotides and lipids are composed of sugars.
carbohydrates are composed of monosaccharides, and lipids are composed of glycerol and fatty acids.
Which major group of macromolecules are the fastest source of energy?
lipids
proteins
nucleic acids
carbohydrates
All enzymes are examples of which type of organic molecule?
proteins
carbohydrates
nucleic acids
carbohydrates
The main source of ATP in an organism comes from
the mitochondria
the vesicles
the ribosomes
the nucleus
Which of the following is a potential function of a polysaccharide?
enzymatic activity
energy storage
oxygen uptake
thermal insulation
What is the role of carbohydrates in animal cells?
synthesizing proteins
developing enzymes
storing energy
protecting the cell wall
Why are enzymes important in digestion?
They allow reactions to occur rapidly and at body temperature.
They change inorganic compounds into organic ones.
They let reactions repeat without energy.
They control photosynthetic processes.
What will most likely occur if a cell is placed in isotonic solution?
Water will not move into or out of the cell at all.
Water will move into the cell from the surrounding solution, only.
Water will move out of the cell into the surrounding solution, only.
Water will move into and out of the cell at equal rates.
