Deck 23: Life Science

Question 1

In the DNA transcription and translation process, DNA is copied into mRNA using RNA polymerase. The mRNA is then translated by:

A)The Golgi body.
B)The mitochondria.
C)The ribosomes.
D)The cell membrane.
E)The cytoplasm.

Answer 1

The ribosomes.

Question 2

Which of the following is always true of prokaryotes?

A)They have no cell membrane.
B)They will have a flagella.
C)They can eat other cells.
D)They do not have a nucleus.
E)All of the above are true.

Answer 2

They do not have a nucleus.

Question 3

What is a heterotrophic organism?

A)An organism that has male and female genders.
B)An organism that can photosynthesize.
C)An organism unable to make its own food.
D)A single-celled organism.
E)A form of plant.

Answer 3

An organism unable to make its own food.

Question 4

Chromosomes are used to store DNA for reproduction. How many pairs of chromosomes do humans have?

A)11
B)13
C)20
D)23
E)26

Question 5

The cell membrane is mostly made of:

A)Proteins
B)Lipids
C)DNA
D)RNA
E)Cytoplasm

Question 6

According to Mendel's theories on genetics, if a dominant allele is paired with a recessive allele, which trait will be expressed?

A)The dominant trait.
B)The recessive trait.
C)A mixture of the two traits.
D)A mixture of the two traits, but with the dominant one taking precedence.
E)Neither trait.

Question 7

Humans and apes both have hand structures used to grab objects. Which structure is the equivalent of the hand in a whale?

A)Tail
B)Flipper
C)Snout
D)Shoulder
E)Underbelly

Question 8

In order to make a viable gamete, which of the following processes needs to occur?

A)Mitosis
B)Translation
C)Injection
D)Metamorphosis
E)Meiosis

Question 9

In plant photosynthesis, what two molecules are combined to create glucose (C₆H₁₂O₆)?

A)Carbon dioxide and hydrogen
B)Carbon dioxide and oxygen
C)Water and carbon dioxide
D)Water and oxygen
E)Oxygen and methane

Question 10

Living organisms are classified into 5 kingdoms. Which of the following is not one of the kingdoms?

A)Animalia
B)Fungi
C)Plantae
D)Eubacerae
E)Protista

Question 11

Of the following types of life forms, which was likely to have occurred the earliest?

A)Bacteria
B)Reptiles
C)Mammals
D)Viruses
E)Fish

Question 12

Charles Darwin pioneered work that proposed a scientific theory stating that species evolved due to:

A)Rational order.
B)Transmogrification.
C)Natural selection.
D)Uniform solidarity.
E)Spontaneous combustion.

Question 13

The Calvin Cycle is a metabolic cycle found in:

A)Fish.
B)Yeast.
C)Plants.
D)Animals.
E)Fungi.

Question 14

Which of the following is not an energy molecule associated with metabolism?

A)ADP
B)NADPH
C)FADH
D)Glycine
E)ATP

Question 15

John has discovered that he has a mutation in one of his DNA base pairs. He is worried that this will cause his proteins to come out all wrong. However, John is perfectly fine. Why?

A)Each amino acid has multiple DNA codons.
B)Mutated DNA doesn't cause mutated proteins.
C)DNA isn't used to create proteins, so there is no problem for John.
D)A single mutation cannot cause a DNA mismatch.
E)John won't be fine. He'll just have to wait and see.

Question 16

Of the following organisms, which is highest on the food chain?

A)Turkey
B)Tiger
C)Snake
D)Guppy
E)Spider

Question 17

An ecosystem that is prevalent in North America is the taiga. What is the taiga ecosystem characterized by?

A)A moist, humid environment.
B)Hot, dry, temperatures.
C)Sandy dunes.
D)Widespread deciduous trees.
E)Widespread coniferous trees.

Question 18

If two organisms share resources in order to gain mutual benefit for each other, then their relationship is:

A)Individualistic.
B)Symbiotic.
C)Predatory.
D)Commensalism.
E)Differential.

Question 19

The primary difference between DNA and RNA is:

A)DNA uses thymine, whereas RNA uses uracil.
B)DNA uses guanine, whereas RNA uses glucosamine.
C)DNA has a single strand, whereas RNA has two strands.
D)DNA is produced in animals, whereas RNA is produced in plants.
E)RNA can exist in prokaryotes, but DNA cannot.

Question 20

Since 1900, how many species have gone extinct?

A)Less than 5.
B)Between 5 and 10.
C)Between 10 and 20.
D)Between 20 and 40.
E)Greater than 40.

Question 21

Which of the following is not a mammal?

A)Whale
B)Gorilla
C)Hippopotamus
D)Parrot
E)Meerkat

Question 22

A species population can grow or decline over time. Which of the following is a way in which the population of a species could decline?

A)Drift
B)Increased birth rate
C)Emigration
D)Increased food sources
E)None of the above

Question 23

In a multicellular organism, what is the correct organization, from simplest to most complex system?

A)Organs, cells, organ systems.
B)Cells, tissues, organs.
C)Specialized cells, blood vessels, organ systems.
D)Cells, organs, tissues.
E)Organ systems, organs, tissues.

Question 24

Which of the following is present in a plant cell but not an animal cell?

A)Cell wall
B)Chloroplast
C)Mitochondria
D)Both A and B.
E)Both B and C.

Question 25

Although plants produce oxygen as a byproduct of their metabolism, animals produce carbon dioxide as a waste product. What process in animals produces carbon dioxide?

A)Ingestion
B)Duplication
C)Respiration
D)Reduction
E)Generation

Question 26

In the human body, which of the following organs produces hormones?

A)Thyroid
B)Heart
C)Skin
D)Muscles
E)Bones

Question 27

Water is able to enter the cell through:

A)Osmosis.
B)Regulation.
C)Active transport.
D)Passive transport.
E)Hydrosynthesis.

Question 28

William has found a lake that is very high in nutrient content, and he plans to grow some algae there to produce biofuel. This lake could also be called:

A)Eutrophic.
B)Autotrophic.
C)Dengatrophic.
D)Plausatrophic.
E)Mesotrophic.

Question 29

The marigold is a plant that completes its entire life cycle, from birth to reproduction to death, in one year. This kind of plant is known as a:

A)Perennial.
B)Circadian type.
C)Monogrowth.
D)Annual.
E)Cyclon.