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BIO 183 Hypertonic and Shrinking Lab Midterm Questions

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BIO 183 Lab Midterm Name:

Please write your name & lab section on the exam and scantron. Please CIRCLE your

answer on this exam AND fill in the answer on the scantron using a pencil in case there is

an issue with grading the scantron. Please note: any form of suspicious activity / cheating will

result in you receiving a grade of “zero” and further action will be taken.

1) A man gets stranded on an island with no fresh water and supplies. He begins to drink

the saltwater he finds close by and after some time he begins to feel really sick. This

is because his cells are:

a. Hypertonic and shrinking

b. Hypertonic and getting better

c. Hypotonic and getting bigger

d. Hypotonic and shrinking

2) Which of the following answer choices lists the scientific method steps in order?

I. Retesting the hypothesis

II. Drawing conclusions

III. Developing a hypothesis

IV. Collecting experimental data

V. Making observations

VI. Conducting an experiment

a. V, IV, III, II, VI, I

b. III, V, VI, IV, I, II

c. V, III, VI, IV, II, I

d. V, III, VI, IV, I, II

3) A student continuously finds himself doing bad in quizzes. He decides to conduct an

experiment where he spends time either studying the night before a quiz or half an

hour before a quiz and observes the changes in his grade for several days. Assuming,

every quiz was different from one another- He found that he scores better when he

studies the night before the quiz. In this scenario, which of the following is true?

a. Independent variable: changes in grades; dependent variable: studying night

before or half hour before exam; control variable: type of quiz

b. Independent variable: studying night before or half hour before exam, dependent

variable: changes in grade, control variable: student

c. Independent variable: studying night before or half hour before exam, dependent

variable: changes in grade, control variable: type of quiz

d. Independent variable and dependent variable: studying night before or half hour

before exam, control variable: student

4) A protein is too large to pass through the plasma membrane. Which of the following

processes allows the protein to cross over to the other side through a channel?

a. Simple diffusion

b. Osmosis

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c. Facilitated diffusion

d. Active transport

5) When looking through the microscope you

are looking through the ________ lens. You

see a sample with 1000x total magnification.

What is the objective lens that you used?

a. Objective lens, 40x

b. Objective lens, 100x

c. Ocular lens, 40x

d. Ocular lens, 100x

6) Which of the following answer choices refers

to the letter “K” in the picture ?

a. Mechanical stage-adjustment knob

b. Fine adjustment knob

c. Coarse adjustment knob

d. Iris diaphragm

7) Which of the following is the best example of

a testable hypothesis?

a. Classical music is better than jazz because stringed instruments, like violins,

are used.

b. Cats have a completely different personality in comparison to dogs.

c. After a long discussion, the people at the meeting finally agreed that it was

time to start the presentation.

d. Garden plants grow better in wet soil than in dry soil

8) Active transport is a way for molecules to move across the plasma membrane. When

active transport is used to move molecules, what is required?

a. Concentration gradient

b. Very small molecules

c. Energy that the cell provides

d. Osmosis

9) In lab, we conducted a lab experiment with different dyes. Which of the following

would you expect to have the fastest diffusion?

a. 0.1 M potassium permanganate (MW= 158 g/mol)

b. 0. 1 M methylene blue (MW= 374 g/mol)

c. 1.0 M methylene blue (MW = 376 g/mol)

d. 1.0 M Congo red (MW= 697 g/mol)

10) Which of the following processes do NOT require energy from the cell?

a. Facilitated diffusion

b. Active transport

c. Simple diffusion

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BIO 183 Lab Midterm Name: Please write your name & lab section on the exam and scantron. Please CIRCLE your answer on this exam AND fill in the answer on the scantron using a pencil in case there is an issue with grading the scantron. Please note: any form of suspicious activity / cheating will result in you receiving a grade of “zero” and further action will be taken. 1) A man gets stranded on an island with no fresh water and supplies. He begins to drink the saltwater he finds close by and after some time he begins to feel really sick. This is because his cells are: a. Hypertonic and shrinking b. Hypertonic and getting better c. Hypotonic and getting bigger d. Hypotonic and shrinking 2) Which of the following answer choices lists the scientific method steps in order? I. Retesting the hypothesis II. Drawing conclusions III. Developing a hypothesis IV. Collecting experimental data V. Making observations VI. Conducting an experiment a. b. c. d. V, IV, III, II, VI, I III, V, VI, IV, I, II V, III, VI, IV, II, I V, III, VI, IV, I, II 3) A student continuously finds himself doing bad in quizzes. He decides to conduct an experiment where he spends time either studying the night before a quiz or half an hour before a quiz and observes the changes in his grade for several days. Assuming, every quiz was different from one another- He found that he scores better when he studies the night before the quiz. In this scenario, which of the following is true? a. Independent variable: ...
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Tags: feel really sick getting bigger scientific method independent variable plasma membrane