AnswersRVACR EcologyCharacteristics of Life

The Function of Organelles Answers

0 verified answers1 views
4

The table shows the energy that is stored in three types of organic molecules.Energy Storage in HumansWhat is the best conclusion based on this data?

Question illustration
A
Blood is a primary location for energy storage.
B
Fat molecules contain more energy-containing bonds than simple sugars.
C
A gram of glycogen has twice as much energy as a gram of fat.
D
The human body stores approximately 1,000 kcal of glucose.
6

Why do phospholipids form a bilayer in water?

A
The phosphate portions repel each other.
B
The hydrophilic and hydrophobic parts attract each other.
C
The phosphate portions attract water, and the lipid portions repel water.
D
The lipid portions attract water, and the phosphate portions repel water.
7

What would most likely happen to a person who is not getting enough essential amino acids in his or her diet?

A
The body would synthesize the amino acids.
B
Muscle growth and repair would be limited.
C
Stored protein would break down.
D
The formation of proteins would increase.
8

What is the general term for any carbohydrate monomer?

A
glucose
B
polysaccharide
C
monosaccharide
D
fructose
9

A scientist is conducting an investigation that involves water, silver, carbon dioxide, and oxygen gas. Which group of statements best describe all of the materials he is using in the investigation?

A
They are each compounds. Each of the compounds is made of atoms. All of the atoms are made of matter.
B
They are each made of matter. Some are compounds and some are elements. They all contain atoms.
C
They are all elements. Some contain molecules of the same type of atom. Some contain different types of atoms.
D
They are each made of matter. Some are compounds made of one type of element. Some are pure atoms.
10

A scientist is examining the role of an element found in fats and carbohydrates of living things. This element makes up 65% of human body mass. Which statement describes the element he is studying?

A
He is studying oxygen, which can also be found in proteins.
B
He is studying oxygen, which is the most abundant element in the atmosphere.
C
He is studying nitrogen, which can also be found in proteins.
D
He is studying nitrogen, which is the most abundant element in the atmosphere.
11

Where is the greatest amount of the world’s carbon found?

A
atmosphere
B
seafloor sediments
C
ocean
D
plants and animals
12

Which statement best describes the relationship between photosynthesis and cellular respiration?

A
Photosynthesis removes carbon from the atmosphere, and cellular respiration releases carbon back into the atmosphere.
B
Photosynthesis is part of the carbon cycle, and cellular respiration is not.
C
Only plants perform photosynthesis, and only animals perform cellular respiration.
D
Photosynthesis releases carbon into the atmosphere, and cellular respiration removes carbon from the atmosphere.
13

Responding to the environment is a characteristic of life best shown by which example?

A
a human shivers on a cold day
B
a horse trots in a field
C
a dog swims in a pond
D
a cat licks its paws
20

The carbon cycle ensures that carbon is not lost. Which is another important benefit of the carbon cycle?

A
The carbon cycle helps regulate Earth's temperature.
B
The carbon cycle ensures that living things have a continual source of hydrogen.
C
The carbon cycle helps transport nutrients in bodies of water.
D
The carbon cycle ensures that there is a continual supply of water.

Did you find these answers helpful?