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Biology - First Nine Weeks Study Guide > Multiple Choice > Flashcards

Multiple Choice Flashcards

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1
Q

Which of the following is NOT a goal of science?

A

To use data to support a particular point of view

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2
Q

Scientific hypotheses must be proposed in a way that…

A

Enables them to be tested

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3
Q

The ability to reproduce results is an important part of any…

A

Experiment

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4
Q

A theory…

A

May be revised or replaced

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5
Q

The space surrounding the nucleus of an atom contains…

A

Electrons

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6
Q

What makes up a molecule of water?

A

Two atoms of hydrogen and one atom of oxygen

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7
Q

What type of ion forms when an atom loses electrons?

A

Positive

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8
Q

The most abundant compound in most living things is…

A

Water

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9
Q

When salt is dissolved in water, water is the…

A

Solvent

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10
Q

A substance with a pH of 6 is called…

A

An acid

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11
Q

A monosaccharide is a…

A

Carbohydrate

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12
Q

If a reaction in one direction releases energy, the reaction in the opposite direction….

A

Absorbs energy and is endergonic

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13
Q

Enzymes affect the reactions in living cells by changing the…

A

Speed of the reaction

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14
Q

Which cell structure contains the cell’s genetic material and controls many of the cell’s activities?

A

Nucleus

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15
Q

Cells fall into two broad categories, depending on whether they…

A

Have a nucleus

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16
Q

Eukaryotes usually contain

A

A nucleus, genetic material, and specialized organelles

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17
Q

What is not found in a nucleus?

A

Cytoplasm

18
Q

Which structures carry out cell movement?

A

Microtubules and Microfilaments

19
Q

Which organelle breaks down compounds into small particles that the cell can use?

A

Lysosome

20
Q

Which organelle make proteins using coded instructions that come from the nucleus?

A

Ribosome

21
Q

Which organelle converts the chemical energy stored in food into compounds that are more convenient for the cell to use?

A

Mitochondrion

22
Q

Which of the following is a function of the cell membrane?

A

Regulates which materials enter and leave the cell

23
Q

An animal cell that is surrounded by fresh water will burst because the osmotic pressure causes…

A

Water to move into the cell

24
Q

The cells of multicellular organisms are…

A

Specialized to perform particular functions

25
Q

An organ system is a group of organs that…

A

Work together to perform a specific function

26
Q

Biology is the study of

A

Living organisms

27
Q

The process by which organisms keep their internal conditions fairly constant is called?

A

Homeostasis

28
Q

What is the term for a group of organisms of one type of living in the same place?

A

Population

29
Q

The nucleus is made of

A

Protons and neutrons

30
Q

A solution is a(an)

A

Evenly distributed mixture of a solute dissolved in a solvent

31
Q

What is the term used to describe the energy needed to get a reaction started?

A

Activation Energy

32
Q

A substance that speeds up the rate of a chemical reaction is called a(an)

A

Catalyst or an Enzyme

33
Q

The thin, flexible barrier around a cell is called the…

A

Cell membrane

34
Q

Prokaryotes lack…

A

A nucleus

35
Q

The main function of the cell wall is to…

A

Support and protect the cell

36
Q

Diffusion is the movement of particles from

A

An area of high concentration to an area of low concentration

37
Q

The diffusion of water across a selectively permeable membrane is called

A

Osmosis

38
Q

Which of the following is an example of an organ?

A

Heart

39
Q

A group of similar cells that perform a particular function is called a(an)

A

Tissue

40
Q

An animal cell that is surrounded by salty water will shrink because the osmotic pressure causes

A

Water to move out of the cell

Biology - First Nine Weeks Study Guide (2 decks)

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