Biology Flashcards

Ecology, Evolution, Genetics (DNA), Cells

1
Q

What is the definition of ECOLOGY?

A

The study of the relationships between living organisms, including humans, and their physical environment.

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2
Q

Abiotic

A

Non-Living

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3
Q

Biotic

A

Living

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4
Q

What are the three trophic levels and how are they displayed on the pyramid?

A

BOTTOM TO TOP

Producers (100%) - Primary Consumers (10%) - Secondary Consumers (1%) - Apex Predators (.1%)

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5
Q

What is the 10% rule?

A

The 10% rule is when every time the energy is transferred from one organism to another 10% of the energy is lost

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6
Q

What are Producers?

A

They are able to produce their own food (energy) by using external sources like the sun for photosynthesis
Ex: Plants/grass

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7
Q

What are Consumers?

A

Consumers eat the producers to gain their energy but 90% of the energy the producer had was lost when the energy was transferred to the consumer
Ex: Deer, Rabbits, Bunnies, and Snails

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8
Q

What are decomposers?

A

An organism, often a bacterium, or fungus, that feeds on and breaks down dead plants or animals making organic nutrients. They can be found in all layers of the pyramid.

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9
Q

What are Apex Predators?

A

They are at the top of the ecology pyramid and primarily eat secondary consumers who eat Primary consumers who eat the producers.
Ex: Shark, Lions, and Bald Eagles

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10
Q

What is a Cell?

A

The smallest init that can live on its own and that makes up all living organisms and the tissues of the body.

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11
Q

How are prokaryotes and eukaryotes different from each other?

A

Prokaryotes: Is NOT multicellular and the DO have a cell wall, and their cell is simple
Ex: Bacteria

Eukaryotes: SOMETIMES have a cell wall, they ARE multicellular, and they are MORE COMPLEX
Ex: Animals, Plants, and Fungi

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12
Q

What is the cell cycle and how does it relate to Mitosis?

A

The cell cycle refers to the cell’s life cycle or the period of cellular growth and DNA replication. Mitosis represents the final step in the cell cycle.

Mitosis (Cell division at the end of the cell cycle) and the cell cycle is the Entire process

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13
Q

What does Meiosis Produce?

A

Gamete Cells (Sex Cells)

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14
Q

What is DNA made of and where is it found in the EUKARYOTIC cell?

A

It is made up of Deoxyribose sugar, nucleic acids, phosphate group, and it is found in the nucleus

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15
Q

What two laws did Gregor Mendel write and what were their impacts on the idea of genetic inheritance?

A
  1. Law of SEGREGATION: The alleles split and you got one letter from each parent
  2. Law of DOMINANCE: The dominate allele is expressed in the phenotype
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16
Q

What is a Punnet Square?

A

It is a way to show the genetic makeup of something
Ex: Hair and Eye color

17
Q

What does a pedigree display?

A

Family relationships

18
Q

What is a transcription and where does it occur in the cell?

A

Transcription is the process of transcribing DNA in mRNA and it occurs in the Nucleus

19
Q

What is translation and where does it occur in the cell?

A

it is the process of translating mRNA into amino acids and then into proteins. This occurs in the ribose which is on the cytoplasm.

20
Q

What are the most important events from the revolution timeline?

A

First eukaryote and prokaryotes, first animals, and first humans

21
Q

Who is Charles Darwin?

A

Charles Darwin is credited with the theory of evolution?

22
Q

How are organisms organized in a cladogram?

A

It shows how evolution occurs over time some aspects stayed the same but other aspects changed such as a Brown bear turning into having darker fur and becoming a black bear. It’s a visual that shows a progression of organisms hanging overtime due to the environment.

23
Q

What is the difference between Autotroph and Heterotrophs?

A

Autotrophs makes it own energy and heterotroph acquires energy

24
Q

What is the difference between producer and Decomposer?

A

A producer generates its own energy through the use of Chloroplasts

Decomposers break down dead material, which cycles nutrients

25
Q

Which of the following is and example of an autotroph?

Lion or Snail or Plant

A

Plant

26
Q

Which of the following is an example of an autotroph?

Dog or Elephant or Goat or Slugs

A

Slugs

27
Q

Which of the following are not part of a nucleotide?

Ribose or phosphate or deoxyribose or None of the above

A

Ribose

28
Q

DNA is best describe as ________.

A

Anti-parallel

29
Q

The “Backbone” of DNA contains which of the following structures?

A

Phosphate and deoxyribose

30
Q

What is the correct order for the central dogma?

A

DNA -> RNA -> Protein

31
Q

Which organelle does DNA replication occur in?

A

Nucleus

31
Q

How many strands are produced at the end of DNA replication?

A

2

31
Q

What are the three general steps of DNA replication?

A
  1. Helicase
  2. DNA Polymerase
  3. Ligase
31
Q

What is the significance for DNA replication?

A

It eventually creates Proteins