Unit 3A: Basics of Life - Entry & Exit Tickets

Question 1

How many levels of organization are in protein folding?

Answer 1

Four

Question 2

Based on the amino acid side chains, an amino acid could be what type of charged?

Answer 2

Positively and negatively charged

Question 3

Based on the amino acid side chains, an amino acid could be hydrophobic, hydrophillic, or both?

Answer 3

Both

Question 4

The results of dehydration synthesis reactions can be reversed by…?

Answer 4

Hydrolyis reactions

Question 5

What type of reaction is A + H20 –> B + C?

Answer 5

Hydrolysis

Question 6

What are cellulose, starch, and glycogen?

Answer 6

Polysaccharides

Question 7

A water strider can stake along the top of a pond because:

Answer 7

Surface tension

Question 8

Water is considered the universal solvent because it is really good at dissolving solutes. This is mainly due to what property?

Answer 8

Polarity

Question 9

What property of water helps your body maintain homeostasis?

Answer 9

Specific heat

Question 10

Cold water is denser than hot water because the molecules are

Answer 10

Moving slower

Question 11

Ice is less dense than water because the molecules are

Answer 11

Not moving

Question 12

Which functional group is a combination of two other functional groups?

Answer 12

Methyl

Question 13

In the process of digestion in your stomach, small, and large intestine, what chemical reaction is occurring?

Answer 13

Hydrolysis

Question 14

What property of water creates a link from the partial positive hydrogen atom of one molecule to the partial negative oxygen atom of another?

Answer 14

Hydrogen bonding

Question 15

When you break down a large molecule into smaller parts

Answer 15

Hydrolysis

Question 16

A molecule that is a chain of many subunits

Answer 16

Polymer

Question 17

Functional group that makes acids

Answer 17

Carboxyl

Question 18

Molecule require to build or break bonds in polymers

Answer 18

Water

Question 19

This macromolecule provides short term energy storage

Answer 19

Carbohydrates

Question 20

This macromolecule makes up steroid hormones

Answer 20

Lipids

Question 21

Carbohydrate content is the highest in what types of food?

Answer 21

Plant material (Hays, greens, oranges)

Question 22

Amino acids are linked together by peptide bonds to form polypeptide chain, which ultimately become proteins. What reaction takes place to form a peptide bonds?

Answer 22

Dehydration synthesis

Question 23

Why may an animal have different dietary needs at different times of the year?

Answer 23

Hibernation require storing additional kilocalories; mating, nesting, and hatching season requires more kilocalories

Question 24

Short-term energy storage is most used by what category of macromolecule?

Answer 24

Carbohydrate

Question 25

Lipids with single bonds are called which of the following?

Answer 25

Saturated

Question 26

Steroids and phospholipids are examples of what macromolecule?

Answer 26

Lipids

Question 27

Glycogen and cellulose are examples of what macromolecule?

Answer 27

Carbohydrates

Question 28

The creation of larger molecules comes from what process?

Answer 28

Dehydration synthesis

Question 29

Which is more complex, a polypeptide or a dipeptide?

Answer 29

Polypeptide

Question 30

In the process of human, elephant, lion, or other animal digestion, what would you assume is always used?

Answer 30

Water

Question 31

What are the three names of the subatomic particles?

Answer 31

Neutrons, electrons, and protons

Question 32

What does science call anything that has mass and takes up space?

Answer 32

Matter

Question 33

An atom is found with 11 protons. It has an atomic mass of 23. How many electrons does it have?

Answer 33

11

Question 34

What is the overall charge of an atom?

Answer 34

Zero

Question 35

An atom is found that has 15 protons and a mass number of 31. How many electrons does it have?

Answer 35

15

Question 36

The number of proteins and neutrons in an atom is the __________________. The average of all the isotopes' weight of an atom is the _____________________.

Answer 36

Mass number; atomic mass

Question 37

An atom is found with 6 protons and a mass number of 13. How many neutrons does it have?

Answer 37

7

Question 38

Polar molecules have ______________ charges - one end is positively charged and the other is negatively charged.

Answer 38

Uneven

Question 39

The positively charged hydrogen ends of water are attracted to the _______________ charged oxygen ends.

Answer 39

Negatively

Question 40

An IV solution contains water, slats, and other water-soluble molecules. In this example, the salts are the _____________________, and the water is the ____________________.

Answer 40

Solute; solvent

Question 41

When water freezes it becomes (density)

Answer 41

less dense

Question 42

Most of the unique properties of water come from the fact that water molecules

Answer 42

are polar and form hydrogen bonds

Question 43

A molecule with uneven charges is called what?

Answer 43

Polar

Question 44

Adhesion is the tendency for water to bond to...

Answer 44

Other surfaces

Question 45

Water forms what types of bonds with other water molecules?

Answer 45

Hydrogen bonds

Question 46

Fatty acids with carbon-carbon double bonds are called what?

Answer 46

Unsaturated

Question 47

A molecule is made of two fatty acids and a phosphate group is called which of the following?

Answer 47

Phospholipid

Question 48

Peptide bonds are found in what macromolecule?

Answer 48

Proteins

Question 49

Which organelle synthesizes lipids, oils, phospholipids, and steroids?

Answer 49

Smooth ER

Question 50

Mitochondria would be most abundant in what kind of cell?

Answer 50

Muscle cells

Question 51

If a cell didn't have a nucleus, it would not be able to perform which two functions?

Answer 51

Make proteins and divide.

Question 52

The theory of endosymbiosis explains what?

Answer 52

The origin of eukaryotes

Question 53

Organelles that definitely arose from endosymbiosis

Answer 53

Mitochondria and chloroplast

Question 54

What did the host cell receive from its endosymbiont?

Answer 54

Energy

Question 55

What did the endosymbiont receive from the host cell?

Answer 55

Shelter

Question 56

Red blood cells lack which organelles?

Answer 56

Nucleus, mitochondria

Question 57

Liver cells are rich in...?

Answer 57

Smooth ER

Question 58

Red blood cells are formed in the bone marrow from parent cells. The RBCs themselves do not perform mitosis. Based on this description, what organelle could the RBC do without?

Answer 58

Nucleus

Question 59

A protein has been formed in the ribosome. Which of the following is a correct pathway to export the cell?

Answer 59

Rough ER --> Golgi Bodies --> Vesicles --> Plasma Membrane

Question 60

If a cell is unable to make proteins, which organelles could be affected?

Answer 60

Rough ER, ribosome, and nucleus

Question 61

A cell is not allowing sugars to enter the cell and move to the mitochondria. Which organelle is most likely malfunctioning?

Answer 61

Cell membrane

Question 62

If peroxisomes do not function properly, what could occur?

Answer 62

Inability to break down long chain fatty acids and a build up of hydrogen peroxide in the cell.

Question 63

A cell is unable to form protein from RNA. What organelle is most likely affected?

Answer 63

Ribosomes

Question 64

An autotrophic cell is unable to make enough glucose. What organelle is most likely affected?

Answer 64

Chloroplast

Question 65

The inner membranes of chloroplasts are called _________________ and the inner membrane of the mitochondria is called _____________________.

Answer 65

Thylakoid; cristae

Question 66

Which type of inhibitor changes the shape of the enzyme?

Answer 66

Competitive

Question 67

Hexokinase is an enzyme that is involved with glycolysis (the breakdown of glucose for energy release) that occurs in the cytoplasm. What cellular structure makes hexokinase?

Answer 67

Free ribosomes in the cytoplasm