Quiz about More Exam 1 Practice - Bio 1

Question 1

Which of the following is the first step in the scientific method?

Accepted Answer

Making an observation

Answer

Forming a hypothesis

Answer

Conducting an experiment

Answer

Drawing a conclusion

Question 2

What is the primary function of mitochondria in eukaryotic cells?

Accepted Answer

Energy production

Answer

Protein synthesis

Answer

Photosynthesis

Answer

Storage of genetic material

Question 3

Which organelle is responsible for photosynthesis in plant cells?

Accepted Answer

Chloroplast

Answer

Mitochondrion

Answer

Nucleus

Answer

Ribosome

Question 4

Which of the following best describes prokaryotic cells?

Accepted Answer

They lack a nucleus and membrane-bound organelles.

Answer

They have a nucleus and membrane-bound organelles.

Answer

They only exist in multicellular organisms.

Answer

They contain chloroplasts.

Question 5

Which equation correctly represents photosynthesis?

Accepted Answer

$$6CO_2 + 6H_2O \rightarrow C_6H_{12}O_6 + 6O_2$$

Answer

$$C_6H_{12}O_6 + 6O_2 ightarrow 6CO_2 + 6H_2O + ext{energy}$$

Answer

$$C_6H_{12}O_6 \rightarrow 2C_2H_5OH + 2CO_2$$

Answer

$$6O_2 + 6H_2O \rightarrow 6CO_2 + C_6H_{12}O_6$$

Question 6

Which of the following statements is true regarding antibiotics?

Accepted Answer

Antibiotics are only effective against bacterial infections.

Answer

Antibiotics are effective against viruses.

Answer

Antibiotics can cure all infectious diseases.

Answer

Antibiotics are used to treat genetic disorders.

Question 7

Which cellular process produces the most ATP in eukaryotic cells?

Accepted Answer

Cellular respiration

Answer

Fermentation

Answer

Glycolysis

Answer

Photosynthesis

Question 8

Which organelle is primarily responsible for protein synthesis?

Accepted Answer

Ribosome

Answer

Lysosome

Answer

Golgi apparatus

Answer

Vacuole

Question 9

Which of the following is a key difference between prokaryotic and eukaryotic cells?

Accepted Answer

Eukaryotes have a nucleus; prokaryotes do not.

Answer

Prokaryotes have mitochondria; eukaryotes do not.

Answer

Prokaryotes have chloroplasts; eukaryotes do not.

Answer

Eukaryotes lack ribosomes; prokaryotes have them.

Question 10

Which of the following is NOT a step in the scientific method?

Accepted Answer

Ignoring data that does not fit

Answer

Making observations

Answer

Formulating a hypothesis

Answer

Conducting experiments

Question 11

Given a scenario where a scientist observes a new microorganism, which step should they take next according to the scientific method?

Accepted Answer

Formulate a hypothesis about its characteristics

Answer

Draw a conclusion

Answer

Publish results

Answer

Ignore the observation

Question 12

A student is given a diagram of a cell and asked to identify the structure responsible for packaging and transporting proteins. Which organelle should they select?

Accepted Answer

Golgi apparatus

Answer

Nucleus

Answer

Mitochondrion

Answer

Chloroplast

Question 13

If a cell is placed in an environment without oxygen, which process will it use to generate ATP?

Accepted Answer

Fermentation

Answer

Photosynthesis

Answer

Aerobic respiration

Answer

Chemosynthesis

Question 14

A patient is diagnosed with a viral infection. Which of the following is the most appropriate course of action regarding antibiotics?

Accepted Answer

Do not prescribe antibiotics, as they are ineffective against viruses

Answer

Prescribe antibiotics to treat the virus

Answer

Increase the dosage of antibiotics

Answer

Prescribe antibiotics to prevent viral replication

Question 15

Which of the following best explains why mitochondria are often called the "powerhouse" of the cell?

Accepted Answer

They produce ATP through cellular respiration.

Answer

They store genetic information.

Answer

They synthesize proteins.

Answer

They control cell division.

Question 16

A scientist claims that a new herbal supplement cures the common cold. Which of the following would best help you evaluate whether this claim is scientific or pseudoscientific?

Accepted Answer

Whether the claim is supported by controlled, repeatable experiments

Answer

Whether the claim is popular on social media

Answer

Whether the supplement is natural

Answer

Whether the claim is based on testimonials

Question 17

A researcher wants to test the effect of light intensity on the rate of photosynthesis. Which variable should be kept constant to ensure a fair test?

Accepted Answer

Type of plant

Answer

Light intensity

Answer

Rate of photosynthesis

Answer

Amount of oxygen produced

Question 18

A student observes that yeast produces bubbles when placed in sugar water but not in salt water. What is the most reasonable hypothesis for this observation?

Accepted Answer

Sugar provides energy for yeast fermentation, producing gas.

Answer

Yeast cannot survive in water.

Answer

Salt water increases yeast activity.

Answer

Yeast only grows in salt water.

Question 19

Given the equation for cellular respiration: $$C_6H_{12}O_6 + 6O_2 ightarrow 6CO_2 + 6H_2O + ext{energy}$$ , explain why oxygen is necessary for this process.

Accepted Answer

Oxygen acts as the final electron acceptor in the electron transport chain, allowing ATP production.

Answer

Oxygen is needed to break down glucose into amino acids.

Answer

Oxygen is converted into glucose.

Answer

Oxygen is used to synthesize DNA.

Question 20

A scientist conducts an experiment to test a new drug's effect on bacterial growth. The results show no significant difference between the treated and control groups. What is the most logical conclusion?

Accepted Answer

The drug has no effect on bacterial growth.

Answer

The drug is effective against bacteria.

Answer

The experiment was a failure.

Answer

The bacteria were not present.

Question 21

headline such as these best illustrate the concept that

Accepted Answer

scientific explanations are tentative and subject to change

Answer

some newspapers are not honest and report incorrect information on purpose

Answer

worms can enter the body many different ways

Answer

worms found in swamp should not be used for fishing

Question 22

Which of the following is a testable statement to be falsified?

Accepted Answer

hypothesis

Answer

scientific theory

Answer

scientific law

Answer

observation

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