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Untitled Deck Flashcards

(51 cards)

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1
Q

Which of the following is the basic unit of life?

A

B. Cell

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2
Q

What is the primary function of the cell membrane?

A

B. To control what enters and exits the cell

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3
Q

Which of the following is a characteristic of eukaryotic cells?

A

B. Membrane-bound organelles

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4
Q

Which organelle is responsible for producing energy in the form of ATP?

A

B. Mitochondria

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5
Q

What does the nucleus contain?

A

C. DNA

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6
Q

Which of the following is NOT a component of a eukaryotic cell?

A

C. Nucleoid

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7
Q

What is the main function of ribosomes in a cell?

A

B. Protein synthesis

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8
Q

Which structure is responsible for storing nutrients, waste products, and other materials in plant cells?

A

C. Vacuole

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9
Q

What is the primary difference between prokaryotic and eukaryotic cells?

A

B. Eukaryotic cells have a nucleus

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10
Q

What is found in both plant and animal cells but not in bacterial cells?

A

C. Nucleus

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11
Q

What is the main function of the mitochondria?

A

B. Produce energy (ATP)

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12
Q

How do the functions of the nucleus and mitochondria differ?

A

B. The nucleus stores genetic material, while the mitochondria produce energy

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13
Q

Which of the following is an example of a prokaryotic organism?

A

B. A bacterial cell

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14
Q

Which of the following is a function of chloroplasts in plant cells?

A

D. Photosynthesis

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15
Q

Which of the following statements compares plant and animal cells?

A

C. Both contain mitochondria

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16
Q

Which of the following best classifies bacterial cells?

A

C. Prokaryotic, unicellular

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17
Q

What is the primary role of cellular respiration in a cell?

A

B. To break down glucose for energy (ATP)

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18
Q

Which of the following is the correct sequence of stages in cellular respiration?

A

A. Glycolysis → Krebs cycle → Oxidative phosphorylation

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19
Q

What is the average size of a human cell compared to a bacterial cell?

A

C. Human cells are much larger than bacterial cells

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20
Q

Why is cellular respiration important for cells?

A

A. It generates the energy (ATP) needed for cell functions

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21
Q

What are the four main types of macromolecules?

Study These Flashcards
A

A. Proteins, Carbohydrates, Nucleic Acids, Lipids

22
Q

What is a macromolecule?

Study These Flashcards
A

B. A large molecule formed by the polymerization of smaller units

23
Q

Which of the following are the building blocks of proteins?

Study These Flashcards
A

B. Amino acids

24
Q

What is the primary function of carbohydrates in living organisms?

Study These Flashcards
A

B. To provide energy

25
Which of the following macromolecules is used to store genetic information?
C. Nucleic acids
26
Which statement compares DNA and RNA structures?
C. DNA is a long, double-stranded helix, while RNA is single-stranded
27
What is one of the main roles of lipids in biological systems?
A. To store energy and form cell membranes
28
Classify the following macromolecules: starch, insulin, cholesterol, and DNA.
B. Starch – Carbohydrate, Insulin – Protein, Cholesterol – Lipid, DNA – Nucleic Acid
29
Which of the following is the typical number of amino acids in a protein?
C. 100-5000
30
What is the primary function of nucleic acids like DNA and RNA?
B. To store and transmit genetic information
31
How does the structure of an enzyme affect its function?
B. The shape of the enzyme determines the substrate it can bind to and catalyze
32
What would happen if the temperature is too high for an enzyme?
B. The enzyme may lose its shape and become denatured
33
Formulate a hypothesis about the impact of a high-protein diet on human health.
A. A high-protein diet leads to higher energy levels but causes kidney damage
34
What could be the consequences of a diet high in carbohydrates and low in proteins?
B. Increased risk of diabetes and weight gain
35
What is the likely impact on an organism if its cells are unable to produce lipids?
B. The organism may have difficulty forming cell membranes and storing energy
36
What is the role of enzymes in cellular metabolism?
B. To act as catalysts that speed up chemical reactions
37
What conclusions can be drawn about how macromolecules interact in cellular processes?
D. Macromolecules work together to maintain homeostasis and perform cellular functions
38
How would a mutation in the gene coding for an enzyme affect its activity?
B. It may cause the enzyme to lose its function or become more efficient
39
Investigate the role of cholesterol in cellular membranes.
A. Cholesterol maintains membrane fluidity and stabilizes the structure
40
How does the presence of both proteins and lipids in the cell membrane affect its function?
B. Proteins act as channels and receptors, while lipids provide the membrane’s flexibility
41
What is the scientific method?
C. A systematic approach to problem-solving based on observation and evidence
42
Which of the following is NOT a step in the scientific method?
D. Opinion
43
What are the main steps of the scientific method?
A. Observation, Hypothesis, Experimentation, Analysis, Conclusion
44
Which of the following is a scientific attitude?
A. Curiosity
45
What is the difference between a hypothesis and a theory?
B. A hypothesis is an educated guess that can be tested, while a theory is a broad explanation supported by evidence
46
Which of the following is an example of a qualitative observation?
C. The flower is red
47
Which of the following is an example of a quantitative observation?
C. The temperature of the solution is 25°C
48
What is the role of experimentation in the scientific method?
C. To test a hypothesis and gather data
49
What is an example of a quantitative observation?
C. The temperature of the solution is 25°C
50
Which of the following is an example of scientific analysis?
C. Reviewing data to find patterns
51
Which of the following is an example of scientific skepticism?
B. Asking questions and requiring evidence for claims

biology (1 decks)

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