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Life Science Test > Chapter 2 Test > Flashcards

Chapter 2 Test Flashcards

1
Q

What happens during photosynthesis?

A

The cells use the energy in sunlight to make food.

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2
Q

The product of photosynthesis do most living things need to survive?

A

Oxygen

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3
Q

How does photosynthesis benefit heterotrophs?

A

It creates food that they can eat.

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4
Q

What happens during photosynthesis?

A

Glucose is broken down, releasing energy.

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5
Q

The stage of respiration that releases most of the energy in glucose occurs in the

A

Mitochondria

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6
Q

How are photosynthesis and respiration related?

A

They have opposite equations

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7
Q

Respiration and photosynthesis keep levels of carbon dioxide and oxygen in the atmosphere ——-.

A

Fairly constant

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8
Q

Which term refers to the production of energy by a cell without using oxygen?

A

Fermentation

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9
Q

What causes lactic-acid fermentation?

A

Too little oxygen in the muscles

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10
Q

What captures energy from the sunlight during photosynthesis?

A

Chlorophyll and other pigments

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11
Q

Carbon dioxide enters plants through the

A

Stomata

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12
Q

Respiration in most cells require

A

Oxygen

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13
Q

Which of these causes a form of alcoholic fermentation?

A

Yeast

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14
Q

Which of the following types of organisms can perform photosynthesis?

A

Autotrophs

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15
Q

What happens during cytokinesis in animal cells?

A

Two new daughter cells are formed.

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16
Q

Dan is shaped like a

A

Double helix

17
Q

During DNA replication, adenine always pairs with

A

Thymine

18
Q

Each rung of the DNA ladder is made of

A

Pair of nitrogen bases

19
Q

During what stage of the cell cycle does replication occur?

A

Interphase

20
Q

What is copied during replication?

A

The cell’s DNA

21
Q

The stage of the cell cycle that follows mitosis is called?

A

Cytokinesis

22
Q

During what phase does the nuclear membrane disintegrate?

A

Prophase

23
Q

During which phase do the thickened chromosomes unravel back into chromatin?

A

Telophase

24
Q

Disease in which cells grow and divide uncontrollably, damaging the parts of the body around them.

A

Cancer

25
Q

Change in the DNA of a chromosome

A

Mutation

26
Q

A mass of abnormal cells that develops when cancerous cells divide and grow uncontrollably

A

Tumor

27
Q

How do you prevent cancer?

A

No smoking

Eat healthy

Protect skin from uv light

28
Q

What are the types of treatment?

A

Surgery remove tumor before it spreads

Radiation: use beams of high energy waves to kill cells

Chemotherapy- use drug/chemicals to kill cells

29
Q

Rumors can take how long to grow?

Cells become more abnormal as they divide

Some cells can break off from the tumor and enter the blood stream traveling to other parts of the body

A

Years

30
Q

What are the products of photosynthesis?

A

Oxygen and sugar

Life Science Test (12 decks)

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