HLTH103 Study Guide - Final Guide: Endosome, Endosperm, Cloning
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Question 211 pts
Blood cells placed in pure water will burst because there is a net movement of water out of the cell.
True |
False |
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Question 221 pts
Photosynthesis takes place in tiny organelles within the cell known as mitochondria.
True |
False |
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Question 231 pts
The balanced chemical equation for cellular respiration is
C6H12O6 + 6O2 â 6CO2 + 6 H2O + 36 or 38 ATP
True |
False |
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Question 241 pts
A catalyst is anything that speeds up a chemical reaction.
True |
False |
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Question 251 pts
Kinetic energy is the energy an object possesses due to its motion.
True |
False |
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Question 261 pts
Changes in temperature and pH may speed up or slow down the activity of an enzyme.
True |
False |
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Question 271 pts
There are 20 different amino acids.
True |
False |
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Question 281 pts
The products of the light-dependent reactions of photosynthesis are oxygen, ATP, and NADPH.
True |
False |
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Question 291 pts
Which of the following is NOT a component of the Cell Theory?
Cells arise only by division of a previously existing cell. |
Cells are the smallest units of structure and function |
All organisms are composed of one or more cells. |
Cells can vary their shape and size to suit the environment for survival. |
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Question 301 pts
What is the name of the two subatomic particles that can be found in the nucleus of an atom?
neutrons and electrons |
protons and neutrons |
protons and electrons |
protons and morons |
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Question 311 pts
Atoms that have either a positive or negative charge are known as:
ions |
magnetic |
lacking nuclei |
electrically neutral |
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Question 321 pts
An atom with an unfilled outer energy level (electron shell) is likely to be:
inert |
unable to form bonds with other atoms |
reactive |
extremely stable |
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Question 331 pts
All living things are able to maintain stable internal conditions. This is known as
metabolism |
homeostasis |
heredity |
cellular organization |
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Question 341 pts
Which of the following is NOT considered to be one of the five basic properties shared among living organisms?
made of one or more cells |
grow and reproduce |
posses DNA |
need oxygen to survive |
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Question 351 pts
CFCs (Chlorofluorocarbons) in the stratosphere cause:
global warming due to increased CO2 |
increase ozone levels by converting O2 to O3 and decreasing UV passage to Earth. |
act as a catalyst to destroy ozone increasing UV passage to Earth. |
increased ice crystal formation that cools the earth. |
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Question 361 pts
The process by which traits are passed from parents to offspring is known as:
heredity |
homeostasis |
complexity |
movement |
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Question 371 pts
Alcoholic fermentation occurs in muscle cells of the human body.
True |
False |
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Question 381 pts
If carbon has 6 protons and 6 neutrons, how many electrons must it have to be electrically neutral?
3 |
36 |
6 |
12 |
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Question 391 pts
The loss of an electron is known as _______; the gain of an electron is known as ________.
reduction; oxidation |
transduction; adduction |
oxidation; reduction |
removal; addition |
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Question 401 pts
Kinetic energy is the stored energy that can be used for motion.
True |
Question 401 pts
Kinetic energy is the stored energy that can be used for motion.
True |
False |
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Question 411 pts
When an electron is transferred from one atom to another, and the two atoms are then electrically attracted to one another, a(n) ________________ bond is formed.
ionic |
kinetic |
covalent |
hydrogen |
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Question 421 pts
Changing the number of ____________ of an atom would change the chemical properties of the atom.
neutrons |
protons |
electrons |
electron shells |
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Question 431 pts
Forming molecules and breaking down molecules in biological organisms usually requires the use of _________ to help the reaction proceed faster.
oil |
heat |
enzymes |
blood |
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Question 441 pts
Organic molecules have a core composed of .
carbon |
nitrogen |
phosphorus |
hydrogen |
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Question 451 pts
The building blocks of carbohydrates are
polypeptides |
amino acids |
nucleotides |
monosaccharides |
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Question 461 pts
Water molecules crossing a membrane from high to low concentration is .
active transport |
cell fate |
facilitated diffusion |
osmosis |
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Question 471 pts
Choose the membrane molecule responsible for the passage of polar molecules and ions into and out of the cell.
phospholipids |
transmembrane channel proteins |
cell surface proteins |
carbohydrate chains |
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Question 481 pts
The simplest cells are .
prokaryotic |
animal cells |
eukaryotic |
cells of fungi |
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Question 491 pts
Which of the following membrane bound organelles are found inside bacterial cells:
nucleus |
organelles are not found in prokaryotic cells |
mitochondria |
chloroplasts |
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Question 501 pts
Which of the following is a specialized components of the cell, is associated with the rough endoplasmic reticulum, and is responsible for making proteins.
vacuoles |
ribosomes |
golgi complex |
nucleus |
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Question 511 pts
Proteins are sorted, modified, and packaged by the _____________ and later transported to the outside of the cell.
ribosomes |
golgi bodies (golgi apparatus) |
nucleus |
mitochondria |
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Question 521 pts
Dehydration synthesis is a process of linking two smaller subunits together to form a polymer. Which of the following statements below is true of dehydration synthesis?
Oxygen is consumed. |
A water molecule is removed from the molecules. |
A water molecule is added to the molecules |
Carbon dioxide is given off. |
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Question 531 pts
Proteins are made up of _________ held together by peptide bonds.
monomers |
monosaccharides |
polymers |
amino acids |
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Question 541 pts
Which of the following gives an amino acid its properties?
NH2 |
R Group or functional group |
COOH |
H |
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Question 551 pts
The final three-dimensional shape of a protein that includes the bonding of two or more polypeptide chains is call its _____ structure.
Tertiary |
Quaternary |
Secondary |
Primary |
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Question 561 pts
How do DNA and RNA differ?
all statements are differences between DNA and RNA. |
DNA is double stranded while RNA is single stranded. |
They have different sugars. |
Thymine is present in DNA but not in RNA. |
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Question 571 pts
Which of the following is a component of a DNA nucleotide?
phosphate |
a nitrogen containing base |
All are components of a nucleotide. |
5-carbon sugar |
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Question 581 pts
Cell membranes are made up of several different types of molecules. Select the membrane molecule below that is made up of a polar region and two non-polar fatty acid tails.
transmembrane proteins |
carbohydrate chains |
phospholipids |
cell surface proteins |
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Question 591 pts
Two organelles which are believed to have once been free-living bacterial cells are ____________ and ______________.
chloroplasts and mitochondria |
golgi apparatus and endoplasmic reticulum |
ribosomes and nucleolus |
peroxisomes and lysosomes |
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Question 601 pts
The is an extensive system of internal membranes responsible for producing carbohydrates and lipids.
smooth endoplasmic reticulum |
rough endoplasmic reticulum |
nucleolus |
mitochondria |
1.
__________ are fairly small organelles that provide a safe place within the cell to carry out certain biochemical reactions that generate harmful, highly reactive oxygen species. These chemicals are both generated and broken down in the same location.
Lysosomes |
Endosomes |
Peroxisomes |
Nucleosomes 2. Biologists cannot possibly study all living species. Instead, they try to understand cell behavior by studying a select subset of them. Which of the following characteristics are useful in an organism chosen for use as a model in laboratory studies?
|