b1 Flashcards

(32 cards)

1
Q

What is the basic unit of life?

A

The cell.

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2
Q

True or False: DNA stands for Deoxyribonucleic Acid.

A

True.

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3
Q

Fill in the blank: The process by which plants convert sunlight into energy is called ______.

A

photosynthesis.

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4
Q

What is the function of ribosomes in a cell?

A

Ribosomes are responsible for protein synthesis.

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5
Q

Multiple Choice: Which of the following is a type of cell division?

A

Mitosis.

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6
Q

What are the two main types of cells?

A

Prokaryotic and Eukaryotic.

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7
Q

True or False: All living organisms are made up of cells.

A

True.

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8
Q

What is the role of the mitochondria?

A

Mitochondria are known as the powerhouse of the cell, producing energy.

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9
Q

Fill in the blank: The genetic material of an organism is found in its ______.

A

DNA.

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10
Q

Multiple Choice: What is the primary function of the cell membrane?

A

To protect the cell and regulate what enters and leaves.

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11
Q

What is the difference between aerobic and anaerobic respiration?

A

Aerobic respiration requires oxygen, while anaerobic respiration does not.

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12
Q

True or False: Enzymes are proteins that speed up chemical reactions in the body.

A

True.

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13
Q

What is homeostasis?

A

The maintenance of a stable internal environment in an organism.

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14
Q

Fill in the blank: The __________ is the part of the cell that contains the nucleus.

A

cytoplasm.

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15
Q

Multiple Choice: Which of the following is NOT a macromolecule?

A

Water.

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16
Q

What is the purpose of the chloroplast?

A

Chloroplasts are responsible for photosynthesis in plant cells.

17
Q

True or False: All cells have a nucleus.

18
Q

What is a mutation?

A

A change in the DNA sequence of an organism.

19
Q

Fill in the blank: The __________ theory states that all living things are composed of cells.

20
Q

Multiple Choice: Which organelle is responsible for packaging proteins?

A

Golgi apparatus.

21
Q

What is the role of the lysosome?

A

Lysosomes digest waste materials and cellular debris.

22
Q

True or False: Osmosis is the movement of water across a semi-permeable membrane.

23
Q

Fill in the blank: The __________ is the semi-permeable membrane surrounding the cell.

A

cell membrane.

24
Q

What does the term ‘species’ refer to?

A

A group of organisms that can interbreed and produce fertile offspring.

25
Multiple Choice: Which of the following processes occurs in the mitochondria?
Cellular respiration.
26
What is the function of the nucleus?
The nucleus houses the cell's genetic material.
27
True or False: Genetic variation is important for evolution.
True.
28
Fill in the blank: The __________ is responsible for controlling the cell's activities.
nucleus.
29
Multiple Choice: Which of the following is a characteristic of life?
Reproduction.
30
What are enzymes made of?
Proteins.
31
True or False: All enzymes are specific to one substrate.
True.
32
Fill in the blank: The __________ is the region of the cell where chemical reactions occur.
cytoplasm.