WorksheetsCell and Molecular Biology (Bio225) Midterm Examination
Total questions: 54
Worksheet time: 1hrs 15mins
This molecules is a ______________
amino acid
nucleic acid
carbohydrates
lipid
Which of the following elements is NOT found in carbohydrates?
Carbon
Hydrogen
Nitrogen
Oxygen
Simple sugars, like glucose, are called __________.
monosaccharides
disaccharides
polysaccharides
starch
Many __________ come together to form one ______________.
monomers; polymer
polymers; monomer
Glycerol and fatty acids are the monomers of ____________.
Carbohydrates
Lipids
Proteins
Nucleic Acids
Lipids are made of... ..
CHO
CHON
CHONP
CHONS
Which macromolecule is this?
carbohydrate
lipid
protein
nucleic acid
_________ is a carbohydrate polymer that humans cannot digest and that make up cell walls of plants.
Starch
Cellulose
Glucose
Lactose
The monomer unit for cellulose is...
Glucose
Galactose
Amino acids
Glucose and fructose
Which of the following monosaccharide combination produces sucrose?
Glucose + fructose
Glucose + galactose
Fructose + galactose
Glucose + glucose
Which of the following tests for starch?
Iodine
Benedict's
Biuret
Emulsion
When starch is present iodine turns...
purple
blue-black
orange
brick red
A negative test for starch will cause Iodine to stay...
orange/red
blue
black
brick red
How do you test for lipids?
By using ethanol and water
By using Benedict's solution
By using Iodine
By using Biuret test
What is a positive result for the lipid emulsion test?
milky white color
clear
yellow
green
DNA and RNA are examples of...
proteins
nucleic acids
carbohydrates
lipids
What is the function of nucleic acids?
Stores energy
Stores genetic information
Movement
Physical structure
What is the monomer of nucleic acids?
Glycerol
Monosaccharides
Amino Acids
Nucleotides
Which macromolecule is shown?
lipid
protein
nucleic acid
carbohydrates
Proteins are made of monomers called ___________
Nucleotides
Monosaccharides
Amino Acids
Glycerol and fatty acids
Which macromolecule is shown?
lipid
protein
nucleic acid
carbohydrate
What type of macromolecule are enzymes?
Protein
Carbohydrate
Lipid
Nucleic Acid
_________ are composed out of carbon (C), hydrogen (H), oxygen (O), nitrogen (N), and phosphorus (P)
carbohydrate
lipids
proteins
nucleic acids
Which of the following are examples of protein?
cutin, waxes, fats, oils
Collagen, enzymes, hemoglobin, insulin, and antibodies
DNA& RNA
Glucose, sucrose, glycogen, and cellulose
Basic unit of structure and function of living things is called:
Cell
Atom
Molecules
Nucleus
Rigid layer that surrounds plant cells is called___________.
Cell Membrane
Cell Wall
ER
Golgi Bodies
Control center of the cell:
ER
Golgi Bodies
Cell Membrane
Nucleus
Widely accepted explanation of the relationship between cells and living things:
Cell Theory
Theory of Gravity
Theory of Evolution
None of These
This layer surrounds the cell and controls what substances come into and out of a cell:
Cell Wall
Nucleus
Mitochondria
Cell Membrane
Tiny cell structures that carry out specific functions in the cell:
Organelles
Organs
Cytoplasm
Mitochondria
The invention of the ________ lead to the discovery of cells because it can magnify small objects to make them appear bigger.
Telescope
Microscope
Barometer
Anemometer
Small structures within all cells that make proteins:
Ribosomes
Mitochondria
Nucleus
ER
This organelle is known as “powerhouse” of cell because it converts food into energy during cell respiration.
Nucleus
Cell Membrane
Mitochondria
Golgi Bodies
Storage area for a cell is called:
Nucleus
Ribosome
Vacuole
ER
Clear, gel-like fluid in a cell:
Cytoplasm
Chloroplast
Mitochondria
Cell Membrane
This organelle contains digestive chemicals that break down certain materials in a cell like a recycling center:
Lysosome
Chloroplast
Golgi Bodies
Mitochondria
This organelle forms passageways in which proteins and other materials are carried from one part of the cell to another like a road:
Chloroplast
Nucleus
Endoplasmic Reticulum
Ribosomes
Green organelle that captures sunlight and uses it to produce food for a plant cell:
Cell Membrane
Cytoplasm
Chloroplast
Cell Wall
This cell organelle receives proteins from the endoplasmic reticulum, packages, and delivers them to other parts of a cell:
Mitochondria
Nucleus
Golgi Bodies
Ribosomes
What 3 cell parts are found in PLANT cells, but not animal cells? (Check all that apply.)
Cell Wall
Large Vacuole
Mitochondria
Chloroplast
Nucleus
Which of the following is NOT part of the cell theory?
All living things are composed of cells.
All cells are produced from other cells.
All cells have a nucleus and chloroplasts.
Cells are the basic unit of structure and function in living things.
Which scientist discovered and named cells after “small rooms”?
Robert Hooke
Anton Van Leeuwenhoek
Matthias Schleiden
Theodor Schwann
What did Theodor Schwann discover about cells?
All plants are made of cells.
All animals are made of cells.
Cells come from other cells.
None of these
Cells with a nucleus like plant and animal cells are also:
Prokaryotic Cells
Eukaryotic Cells
Bacteria Cells
All of these
This is part of his work.
Robert Hooke
Anton Van Leeuweenhoek
Robert Brown
Rudolf Virchow
Which statement is a part of the cell theory?
bacteria are prokaryotic cells
all cells come from preexisting cells
eukaryotic cells are complex
humans are multicellular
Which of the following scientists was the first to observe bacteria?
Anton van Leuwenhoek
Matthias Schleiden
Robert Hooke
Theodor Schwann
Cell theory states:
All living cells must have a cell wall.
All living cells require glucose for survival.
All cells contain a nucleus
The basic unit of life is a cell.
Which of the following scientists concluded that all animals are made of cells?
Rudolf Virchow
Matthias Schleiden
Robert Hooke
Theodor Schwann
Cells are often called "the ____ of life."
bread
road map
building blocks
meaning
Discuss fully the process and how emulsion test detects lipids (10 pts).
What are the steps in doing DNA extraction at home? Explain the importance of DNA in an organism. (15 pts)
Label the parts of prokaryotic cell. Give the function of each parts. (10 pts)
Label the parts and state the function of each organelle. (15 pts)
