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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
Science   Biology   
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Homework Answers

Answer #1

Answer 401 - False

Answer 411 - Ionic

Answer 421 - Electron

Answer 431 - Enzymes

Answer 441 - Carbon

Answer 451 - Monosaccharides

Answer 461 - Active transport

Answer 471 - Transmembrane channel proteins

Answer 481 - Prokaryotic

Answer 491 - Organelles are not found in prokaryotic cell

Answer 501 - Ribosome

Answer 511 - Golgi bodies (Golgi apparatus)

Answer 521 - A water molecule is removed from the molecules

Answer 531 - Amino acids

Answer 541 - R group or functional group

Answer 551 - Quaternary

Answer 561- All statements are the differences between DNA and RNA

Answer 571 - All are components of a nucleotide

Answer 581- Phospholipids

Answer 591- Chloroplasts and mitochondria

Answer 601 - Smooth endoplasmic reticulum

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