(AKS 3b / DOK 2) Four students were discussing how surface area to volume ratio limits cell size. Which student claim below would be the
BEST claim to support?
O A. Student 1: The larger the cell, the more nutrients it will receive in a shorter amount of time
B. Student 2: As the cell gets bigger, the outside of the cell is able to keep up with its internal needs
OC. Student 3: Waste diffuse out of the larger cells faster than smaller cells
D. Student 4: The bigger the cell gets, the less surface area it has for its size

Answer:

D

Explanation:

Let's assume there's two cuboidal cells, cell A and B

Cell A has a side of x

Let's find the surface area of cell A

SA = 6(L²)

SA = 6(x²)

SA = 6x²

Let's find the volume of cell A

V = L³

V = (x)³

V = x³

Cell B has a side of 2x

Now let's find the surface area of cell B

SA = 6(L²)

SA = 6(2x)²

SA = 24x²

Let's find the volume of cell B

V = (L)³

V = (2x)³

V = 8x³

As you can see, just by doubling the side length, the ratio between Surface Area and Volume went from 6/x to 3/x (the x² in the numerator and the x³ in the denominator cancel out forming 1/x)

The ratio decreased, therefore, D is the statement that makes sense

The result of DNA having one parent strand and one completely new strand of DNA is???

PLEASE ANSWER 15 POINTS

determine the CHARACTER of the bond that will form between phosphorus and bromine

How much energy is used by the organism or lost to the environment as heat between trophic levels

10% or 90%

Whitch part of the cells help keep all its pieces together

Which of these Earth spheres interacts with coral reefs to cause coral bleaching?

Atmosphere
Cryosphere
Geosphere
Hydrosphere

PLZZZ HELP!!! I NEED HELP DESPERATELY!!
What is the gain of FADH₂ per pyruvic acid in the citric acid cycle?

What is Cellular Respiration and what is the formula for it?

which statement accurately describes bioaccumulation:
1) a substance, such as a pesticide, collects in the body of an organism over time.
2) the concentration of a substance increases as it moves up the food chain
3) a method to get rid of an invasive species in an ecosystem
4) pesticides in the soil, air and water become sources of pollution.

If the mRNA codon is CCA, what should be the tRNA anticodon be? And Which amino acid does this make?

In the box provided explain why living organisms
contain more hydrogen atoms than any other
atoms, yet 65% of a typical organism's mass is
oxygen
І

why consumers would want GMO?

Ten fish have lived in a 10-gallon fish tank for 6 months. However, within 2 weeks of adding 6 new fish, the population of fish drops to 7
fish. Which most likely accounts for this drop in the fish population?
A. The additional fish increased the water level.
B. The additional fish reduced the space per fish.
C. The additional fish increased the water temperature.
D. The additional fish reduced the carbon dioxide levels.

which two products are bromelain likely to produce when breaking down proteins
amino acids
fatty acid
monosaccharides
nucleic acid
polypeptides
disaccharides

In your own words, define or describe what you
already know about photosynthesis?

what are the 3 major purposes for the cell cycle

what is the unit for mass

Which of the following is the study of the chemistry of living things?
Biology
Geology
Physics
Organic Chemistry

Metals have properties that we use when we walk into safe buildings, use electricity, or cook food .
TRUE OR FALSE?

Which statement explains a difference between a cell wall and a cell membrane?

Question 1 (2 points)
How did we define homeostasis?

Question 1 options:

Actively changing due to an environmental stimulus


Taking “raw” materials and turning it into a usable energy


The ability to increase in size and complexity


Regulation of bodily functions to stay within a certain range

Question 2 (2 points)
Saved
A hypothesis can be described as

Question 2 options:

a testable explanation.


a theory.


a law.


a wild guess.

Question 3 (2 points)
You notice you begin to sweat whenever the door to your bedroom is closed. This is most closely related to which step in the scientific method?

Question 3 options:

making an observation


forming a hypothesis


forming a conclusion


recording data

Question 4 (2 points)
In an experiment, the variable being tested or changed is the

Question 4 options:

control variable


dependent variable


responding variable


independent variable

Question 5 (1 point)
Match each of the following terms with the correct definition?

dependent variable


controls or constants


independent variable


hypothesis

1.
An testable explanation to explain a natural phenomenon

2.
the variables that are held constant in an experiment

3.
the variable that is measured as data in an experiment

4.
the variable that is controlled by the experimenter

Question 6 (2 points)
Some chickens lay an egg every day. Other chickens produce few eggs. A study is planned to examine some factors that might affect the number of eggs produced by chickens. Which of the following is NOT a suitable hypothesis for the study?

Question 6 options:

If the cage for the chickens is larger, they will produce more eggs.


If more eggs are produced by the chickens, they will lose more weight.


If there is more protein in the feed, then more eggs are produced.


If chickens receive more hours of light, then they will produce more eggs.

Question 6 (2 points)
Some chickens lay an egg every day. Other chickens produce few eggs. A study is planned to examine some factors that might affect the number of eggs produced by chickens. Which of the following is NOT a suitable hypothesis for the study
If the cage for the chickens is larger, they will produce more eggs.


If more eggs are produced by the chickens, they will lose more weight.


If there is more protein in the feed, then more eggs are produced.


If chickens receive more hours of light, then they will produce more eggs.

Sam wished to investigate how fertilizer run-off affects the growth of algae in freshwater lakes and streams. He set his experiment up as follows. He placed 900 ml of water into each of five 1000 ml glass beakers. To each beaker, he added 5 ml of water from an aquarium which contained a large concentration of algae. The beakers were placed under a lamp which was on a timer to provide 12 hours of light each day. Liquid fertilizer was added to the beakers in the following amounts.

Each week, a random sample from each of the beakers was examined under a microscope to get a count of the number of algal cells present.

What is the independent variable in this experiment?

On what basis are rocks classified into three
main groups?
A. their age
B. their color
C. their formation
D. their texture

Describe the two stage life cycle of plants: the gemetophyte stage and the sopophyte stage

Which researcher proposed that dreams are a chance for problem solving? A. Sigmund Freud B. Matthew Wilson C. Rosalind Cartwright D. J. Allan Hobson

Which molecule can freely diffuse through the cell membrane?

Oxygen

Nitrogen

Hydrogen

Glucose

which of the following blood types is considered a "universal reciever" A B AB O
​

how do 2 siblings from the same parents look different to each other

Which substance is harmful in drinking water at any amount?

A) Nitrates
B) Pesticides
C) Charcoal
D) Coliform Bacteria

Don came up with the hypotheses that butterflies prefer to eat nectar from white flowers Don conduct an experiment and learn that his hypotheses with not correct what should Don do next

arrange these metric prefixes in order from largest to smallest Milli, kilo- hecto, base, deci-, deca, centi-

Which of the following is NOT a function of the smooth ER?
A. Lipid synthesis
B. Protein synthesis
C. Detoxification
D. Ion storage