Question 1

Question

Which element is present in all ORGANIC molecules?

a
oxygen
b
wadenesium
c
carbon
d
phosphorus
Question 2
You work for a company that manufactures food products. A new "wonder food" contains only carbon, oxygen, and hydrogen. At this point, your research can say with certainty that the food ______.

WONDER FOODS SRL - Locuri de munca, Joburi, Angajari, Cariere - eJobs.ro

a
cannot include proteins or nucleic acids
b
could only be made of triglycerides
c
includes proteins
d
could only be made of carbohydrates
Question 3
The building blocks of proteins are known as:

How Many Combinations Are Possible Using 6 LEGO Bricks? | Mental Floss

a
polysaccharides
b
nucleic acids
c
amino acids
d
monosaccharides
Question 4
Which element is present in all ORGANIC molecules?

a
oxygen
b
carbon
c
phosphorus
d
wadenesium
Watch this video, and answer the questions that follow:

Question 5
The rough ER’s main purpose is membrane and protein production, the latter process assisted by ribosomes. These processes help maintain _____ in eukaryotic cells.

shopping?q=tbn:ANd9GcSgpgiVSLtUFX0m7g1VwFXkOhf28Tue6PAg-LW4QJpL0kvgtBjdWwH8JrtUZ0KBkoLnwoqGO38jSb4B86iAzRs0rUnXeZDpGmHVlp3rTGBFUfIcaYuCwv5ZTg

a
Mrs.Ruhala's garden gnome collection
b
passive transport
c
vitamin synthesis
d
homeostasis
Question 6
Review the diagram below and select the best response:

Plant cell vs Animal cell- Definition, 25 Differences with cell organelles

a
Only plant cells have rough endoplasmic reticulum
b
Plant and animal cells have chloroplasts
c
Plants have a larger vacuole
d
Animal cells always have cell walls
Question 7
The diagram below shows the structure of a bacterial cell.

Which of the following distinguishes this bacterial cell from eukaryotes?

a
The bacterial cell has both a cell membrane and a cell wall, and eukaryotes have only cell membranes.
b
Ribosomes are found in the cytoplasm of the bacterial cell, and eukaryotes do not have ribosomes.
c
The bacterial cell is a unicellular organism, and all eukaryotes are multicellular.
d
DNA in the bacterial cell is always in contact with the cytoplasm, and all eukaryotes have DNA located inside a nucleus.
Watch this video, and answer the questions that follow:

Question 8
Glucose is needed by all cells in order to do cellular respiration. How does glucose, a large molecule, enter cells without using cell energy?

a
via channel proteins using facilitated diffusion
b
by employing active transport
c
using proteins pumps and ATP
d
osmosis moving against the concentration gradient
Question 9
Use the diagram below to answer the question.

Image

The diagram shows a beaker of water and molecules of red dye at the beginning of an experiment (Time 1) and the same beaker of water and molecules of red dye after 30 minutes (Time 2). Which of the following best explains what happened?

a
Molecules of water moved by active transport from a higher concentration to a lower concentration.
b
Molecules of red dye moved by active transport from a higher concentration to a lower concentration.
c
Molecules of red dye moved by diffusion from a higher concentration to a lower concentration.
d
Molecules of water moved by osmosis from a lower concentration to a higher concentration.
Question 10
When a cell needs to get rid of waste products and push them OUT OF THE CELL, which term best describe the process by which cells release substances from the cell?

a
endocytosis
b
phagocytosis
c
exocytosis
d
pinocytosis
Watch this video, then answer the questions that follow:

Question 11
Which are the products of aerobic cellular respiration?

Grocery Shopping Carts for Supermarkets (3.5 Cu. Ft.)



a
water and carbon dioxide
b
glucose, oxygen and light
c
water, oxygen and ATP
d
water and carbon dioxide and ATP
Question 12
Jarrick is observing a single-celled alga and knows that it undergoes photosynthesis and respiration. Which question could the student ask to find out how it can do both processes?

Volvox-microscope-colony-structure_631255bc6f1c7.jpg

a
Is water needed for the processes of respiration and photosynthesis?
b
Is carbon dioxide needed for the process of photosynthesis?
c
Are the inputs of photosynthesis the same as the outputs of respiration?
d
Are the inputs of photosynthesis the same as the inputs of respiration?
Question 13
Name this summary reaction for all the points!

Chemical formula: 6 CO2 + 6 H2O + (light energy) → C6H12O6 + 6 O2

a
Dehydration synthesis
b
Cellular respiration
c
Photosynthesis
d
Lipid hydrolysis
Question 14
The model shows the light-dependent reactions and the Calvin Cycle within a cell.

image bace73ffe99f45138274b455013cc3cd

Which question can be answered about the light-dependent reactions?

a
Where is CO2 used?
b
Where is water broken down?
c
Where is oxygen used?
d
Where is glucose formed?
Question 15
What is the high-energy molecule that is one of the end products of the digestion (breakdown) of carbohydrates?

a
ADP
b
ATP
c
glucose
d
protein
Question 16
Dr Injectus treats an animal cell with a chemical that destroys the cell's mitochondria. As a result of his action, which of the cell's processes will most likely be stopped?

a
enzyme production
b
fermentation
c
photosynthesis
d
aerobic respiration
Watch this video, and answer the questions that follow:



Question 17
During prophase, a stage in the cell cycle,

Molecular Expressions Photo Gallery: Mitosis

a
the cell begins to separate into two new genetically unique cells.
b
the nuclear envelope breaks down and chromatin condenses into chromosomes.
c
the cell duplicates its genetic material- doubling the number of chromossomes.
d
the chromosomes in the cell begin to move and align at the equator of the cell.
Question 18
Review the four models below (the number show the number of chromosomes present in each cell):

image f62c7ddd3de644e5b4cb1a0097526d48

Which model correctly shows the results of mitosis?
a
Model 1 because during mitosis, two daughter cells receive half of the chromosomes of the parent cell.
b
Model 2 because during mitosis, one daughter cell receives the same number of chromosomes as the parent cell.
c
Model 3 because during mitosis, two identical daughter cells receive the same number of chromosomes as the parent cell.
d
Model 4 because during mitosis, four daughter cells receive one quarter of the chromosomes of the parent cell.
Question 19
A student uses gummy worms to model the process of mitosis. The model is shown below.
image 7e8f5518d2214a2eb2d2a97cbb1fd183
Using the model, which statement correctly explains how mitosis preserves genetic continuity?
a
Each daughter cell receives half of its chromosomes from each of the parent cells.
b
The daughter cells receive chromosomes that are recombined from the parent cells.
c
The daughter cells receive chromosomes that are identical to the parent cell.
d
Each daughter cell receives twice as many chromosomes as the parent cell.
Question 20
Use the gamete formation flow chart to help answer the following question:

In humans, the segregation that occurs during meiosis results in:



a
all sex cells having 23 pairs of chromosomes.
b
all sex cells having 23 alleles.
c
each somatic cell is identical to every sex cell.
d
all sex cells having 23 chromosomes.
Watch this video, then answer the questions that follow:

Question 21
The table below shows the percentages of bases in a DNA sample. How much Adenine (A) should you expect to find in the sample?

a
17%
b
33%
c
50%
d
72%
Question 22
Watson and Crick (with Franklin's help) were the first to suggest that DNA is a_____.
a
protein
b
double helix
c
source of genetic material
d
very short molecule

Answer 1

Here are the answers to the questions based on the information provided:

Question 1:
Which element is present in all ORGANIC molecules?
Answer: c - carbon

Question 2:
At this point, your research can say with certainty that the food ______.
Answer: a - cannot include proteins or nucleic acids

Question 3:
The building blocks of proteins are known as:
Answer: c - amino acids

Question 4:
Which element is present in all ORGANIC molecules?
Answer: b - carbon

Question 5:
These processes help maintain _____ in eukaryotic cells.
Answer: d - homeostasis

Question 6:
Which statement is true?
Answer: c - Plants have a larger vacuole

Question 7:
Which of the following distinguishes this bacterial cell from eukaryotes?
Answer: d - DNA in the bacterial cell is always in contact with the cytoplasm, and all eukaryotes have DNA located inside a nucleus.

Question 8:
How does glucose enter cells without using cell energy?
Answer: a - via channel proteins using facilitated diffusion

Question 9:
Which of the following best explains what happened?
Answer: c - Molecules of red dye moved by diffusion from a higher concentration to a lower concentration.

Question 10:
Which term best describe the process by which cells release substances from the cell?
Answer: c - exocytosis

Question 11:
Which are the products of aerobic cellular respiration?
Answer: d - water and carbon dioxide and ATP

Question 12:
Which question could the student ask to find out how it can do both processes?
Answer: c - Are the inputs of photosynthesis the same as the outputs of respiration?

Question 13:
Name this summary reaction for all the points!
Answer: c - Photosynthesis

Question 14:
Which question can be answered about the light-dependent reactions?
Answer: b - Where is water broken down?

Question 15:
What is the high-energy molecule that is one of the end products of the digestion of carbohydrates?
Answer: b - ATP

Question 16:
As a result of destroying the cell's mitochondria, which process will most likely be stopped?
Answer: d - aerobic respiration

Question 17:
During prophase, a stage in the cell cycle,
Answer: b - the nuclear envelope breaks down and chromatin condenses into chromosomes.

Question 18:
Which model correctly shows the results of mitosis?
Answer: c - Model 3 because during mitosis, two identical daughter cells receive the same number of chromosomes as the parent cell.

Question 19:
Using the model, which statement correctly explains how mitosis preserves genetic continuity?
Answer: c - The daughter cells receive chromosomes that are identical to the parent cell.

Question 20:
In humans, the segregation that occurs during meiosis results in:
Answer: d - all sex cells having 23 chromosomes.

Question 21:
How much Adenine (A) should you expect to find in the sample?
Answer: b - 33% (If you assume that A pairs with T and they are in equal amounts).

Question 22:
Watson and Crick were the first to suggest that DNA is a_____.
Answer: b - double helix

Feel free to ask for further clarification on any of these answers!