Question

Question 1
The image represents a human cell in an isotonic solution. Some common cellular molecules that can freely move across the plasma membrane are shown5



What do you think will happen if no energy is used?

a
Some CO2 will leave the cell.
b
Some H2O will leave the cell.
c
Some O2 will enter the cell.
d
Some H2O will enter the cell.
Question 2
A group of students are conducting an experiment. Since potatoes contain both sugar and water, the students use them in the experiment. The students cut six equal cubes of potato and weigh them. They place the six cubes into six different beakers containing different concentrations of sugar solutions, then weigh each potato cube after 24 hours and calculate the percent change in mass. The graph below shows the result of their experiment.




Which of the statements below is a valid conclusion about this experiment?

a
The higher the concentration of sugar, the more likely the potato will gain mass.
b
The higher the concentration of sugar, the more likely the water concentration will be at equilibrium.
c
The lower the concentration of sugar, the less likely the potato will gain mass.
d
The lower the concentration of sugar, the more likely the potato will gain mass.
Question 3
Suppose a white blood cell destroys invading bacteria by phagocytosis. Which statement best describes this process?

a
The white blood cells are using diffusion and therefore are not using energy.
b
The white blood cells are using active transport, and therefore are using energy.
c
The white blood cells are using passive transport and therefore are not using energy.
d
The white blood cells are using osmosis and therefore are using energy.
Question 4
Which of the following is NOT an example of homeostasis?

a
During rigorous exercise the heart rate increases to deliver more blood to the cells.
b
When blood glucose is high, the hormone insulin reduces blood glucose.
c
As humans age, they become more susceptible to disease and cancer.
d
When body temperature rises, nerve impulses cause sweat glands to release more sweat.
Question 5
Herpes simplex and HIV are excellent examples of which of the following?

a
antigens
b
immunity
c
bacteria
d
virus
Question 6
The table compares a eukaryotic cell and a virus.

Which statement correctly compares a eukaryotic cell and a virus?



Characteristic Eukaryotic Cell Virus
organelles many none
method of reproduction cell division only with a host
responds to stimuli yes no
nucleic acid DNA DNA or RNA


a
A eukaryotic cell responds to changes in the environment, whereas a virus cannot adapt.
b
A eukaryotic cell maintains homeostasis, whereas a virus does not possess the required organelles.
c
A eukaryotic cell contains genetic material, whereas a virus does not contain genetic material.
d
A eukaryotic cell can reproduce to make more cells, whereas a virus cannot reproduce.
Question 7
Correctly identify the following labels on the plant and animal cells.



Column A
1.
a:
a
2.
b:
b
3.
c:
c
4.
d:
d
5.
e:
e
6.
f:
f
7.
g:
g
8.
h:
h
9.
i (present in both cells- labeled in one):
i (present in both cells- labeled in one)
Column B
a.chloroplasts
b.cell membrane
c.cytoplasm
d.endoplasmic reticulum
e.centriole
f.mitochondria
g.vacuole
h.nucleus
i.cell wall
Question 8
Which three organelles work together to prevent a plant cell from bursting when it has absorbed too much water?

a
ribosome, cell membrane, and Golgi apparatus
b
vacuole, cell wall, and cell membrane
c
cytoplasm, cell wall, and endoplasmic reticulum
d
lysosome, cell membrane, and chloroplast
Question 9
How do the Golgi apparatus and vesicles interact in an animal cell?



a
The Golgi apparatus synthesizes proteins, and the vesicles package the proteins for transport in the cell.
b
The Golgi apparatus transports proteins, and the vesicles control the transportation of the proteins in the cell.
c
The Golgi apparatus degrades proteins, and the vesicles synthesize replacement proteins in the cell.
d
The Golgi apparatus packages proteins, and the vesicles transport the packages to various locations in the cell.
Question 10
Chlamydia is a sexually transmitted disease that is caused by a bacterium called Chlamydia trachomatis.

Which of these are characteristics of the infectious agent that causes chlamydia?

a
Unicellular organism that replicates only inside of other organisms
b
Unicellular organism that contains DNA
c
Nonliving particle that replicates only inside of other organisms
d
Non-living particle that contains DNA

Answers

Answered by GPT-4o mini
Here are the answers to your questions:

### Question 1
The answer is **a**: Some CO2 will leave the cell.

In an isotonic solution, the movement of water is balanced, but gases like CO2 can diffuse out of the cell without the use of energy.

### Question 2
The answer is **d**: The lower the concentration of sugar, the more likely the potato will gain mass.

In lower concentrations of sugar, water moves into the potato cubes by osmosis, causing an increase in mass.

### Question 3
The answer is **b**: The white blood cells are using active transport, and therefore are using energy.

Phagocytosis is an active process that requires energy to engulf bacteria.

### Question 4
The answer is **c**: As humans age, they become more susceptible to disease and cancer.

This statement describes a consequence of aging rather than a homeostatic mechanism.

### Question 5
The answer is **d**: virus.

Both herpes simplex and HIV are types of viruses.

### Question 6
The answer is **a**: A eukaryotic cell responds to changes in the environment, whereas a virus cannot adapt.

Eukaryotic cells can respond to stimuli, while viruses cannot adapt without a host cell.

### Question 7
1. a: **chloroplasts**
2. b: **cell membrane**
3. c: **cytoplasm**
4. d: **endoplasmic reticulum**
5. e: **centriole**
6. f: **mitochondria**
7. g: **vacuole**
8. h: **nucleus**
9. i (present in both cells- labeled in one): **cell wall**

### Question 8
The answer is **b**: vacuole, cell wall, and cell membrane.

These three organelles work together to manage water balance and prevent bursting in plant cells.

### Question 9
The answer is **d**: The Golgi apparatus packages proteins, and the vesicles transport the packages to various locations in the cell.

The Golgi apparatus modifies and packages proteins into vesicles for transport.

### Question 10
The answer is **a**: Unicellular organism that replicates only inside of other organisms.

Chlamydia trachomatis is a bacterium that requires a host to replicate.

Let me know if you have any further questions or need more clarification!
There are no human answers yet. A form for humans to post answers is coming very soon!

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