1. Which of the following are examples of Eukaryotic cells?(1 point)
Responses
A. plants cells and animal cells
B. plant cells and bacteria
C. bacteria and animal cells
D. none of these choices are correct
Question 2
2. What best describes a cell?(1 point)
Responses
A. cells are the basic unit of life
B. cells are the building blocks of life
C. cells can replicate
D. all of the above
Question 3
3. What are the primary differences between plant cells and animal cells?(1 point)
Responses
A. plant cells have cytoplasm, animal cells do not
B. plant cells have a cell wall and larger vacuole, animal cells do not
C. plants cells have chloroplasts, animal cells do not
D. both B and C
Question 4
4. Bacterial cells are Prokaryotes. How are prokaryotic cells different from eukaryotic cells?(1 point)
Responses
C. prokaryotic cells have a circular strand of DNA
A. prokaryotic cells have a nucleus
D. prokaryotic cells do not replicate
B. prokaryotic cells have mitochondria or chloroplasts
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Question 5
5. What is the function of the cell membrane?(1 point)
Responses
A. to provide structure and support to the cell
B. to control what enters and exits the cell
C. to break down food molecules for energy
D. to store genetic material
the answer?
Question 1: A. plants cells and animal cells
Question 2: D. all of the above
Question 3: D. both B and C
Question 4: A. prokaryotic cells have a circular strand of DNA
Question 5: B. to control what enters and exits the cell
What type of tissue aids plants in transport of important materials for photosynthesis?(1 point)
Responses
Vascular
Vascular
Ground
Ground
Reproductive
Reproductive
Dermal
Dermal
Question 2
2. How do the unique properties of water assist plants in transportation of water through the vascular system?(1 point)
Responses
Water's ability to dissolve allows it to flow through the xylem and phloem at a fast rate
Water's ability to dissolve allows it to flow through the xylem and phloem at a fast rate
Cohesion allows water to stick to itself and flow up through the xylem through capillary action
Cohesion allows water to stick to itself and flow up through the xylem through capillary action
Polarity allows water to be attracted to the leaves and be absorbed through evaporation
Polarity allows water to be attracted to the leaves and be absorbed through evaporation
Adhesion allows water to flow down the xylem into the roots
Adhesion allows water to flow down the xylem into the roots
Question 3
3. A student discovers a plastic bag around the leaves of a plant while on a hike. They observe small droplets of water within the bag. Which of the following explanations is most likely the reason behind seeing this water?(1 point)
Responses
Transpiration from the loss of water vapor through leaves
Transpiration from the loss of water vapor through leaves
Cohesion from the transport of water through the vascular system
Cohesion from the transport of water through the vascular system
Photosynthesis from the absorption of oxygen through leaves
Photosynthesis from the absorption of oxygen through leaves
Capillary action from the absorption of water through the leaves
Capillary action from the absorption of water through the leaves
Question 4
4. Plants have organs and tissues, just like animals. Which of the following correctly compares the structure and function of stoma (plural: stomata) in plants to a familiar organ in the human body?(1 point)
Responses
A stoma is like a stomach, because it chemically digest compounds needed for photosynthesis
A stoma is like a stomach, because it chemically digest compounds needed for photosynthesis
A stoma is like a mouth, because it allows for exchange of gasses with the outside environment
A stoma is like a mouth, because it allows for exchange of gasses with the outside environment
A stoma is like a brain, because it controls all transport of water in the vascular system
A stoma is like a brain, because it controls all transport of water in the vascular system
A stoma is like a heart, because it pumps water through the roots of a plant
A stoma is like a heart, because it pumps water through the roots of a plant
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Question 1: Vascular
Question 2: Cohesion allows water to stick to itself and flow up through the xylem through capillary action
Question 3: Transpiration from the loss of water vapor through leaves
Question 4: A stoma is like a mouth, because it allows for exchange of gases with the outside environment
Cells contain DNA, which contains the universal genetic code/instructions for all processes in all organisms on Earth. There are multiple structures important to storing this genetic material. Which of the following correctly places these structures in order from smallest to largest?(1 point)
Responses
gene, DNA, chromosome, nucleus, cell
gene, DNA, chromosome, nucleus, cell
cell, DNA, chromosome, nucleus, gene
cell, DNA, chromosome, nucleus, gene
DNA, gene, cell, chromosome, nucleus
DNA, gene, cell, chromosome, nucleus
gene, nucleus, chromosome, cell, DNA
gene, nucleus, chromosome, cell, DNA
Question 2
2. DNA is in the form of double helix, with very speicfic ways in which the nitrogenous bases pair. A (adenine) always pairs with T (thymine) and C (cytosine) always pairs with G (guanine). mRNA however, does not contain thymine. What base on the mRNA matches up with the adenine on the DNA strand? (The video does not say this but shows it!)(1 point)
Responses
C (cytosine)
C (cytosine)
G (guanine)
G (guanine)
U (uracil)
U (uracil)
A (adenine)
A (adenine)
Question 3
3. Transcription results in:(1 point)
Responses
a new DNA strand
a new DNA strand
a protein
a protein
an mRNA strand
an mRNA strand
a tRNA strand
a tRNA strand
Question 4
4. What is the role of the ribosome in translation?(1 point)
Responses
To unzip the DNA strand for transcription
To unzip the DNA strand for transcription
To match the base pairs from mRNA to the new DNA strand
To match the base pairs from mRNA to the new DNA strand
To carry the mRNA from the nucleus to the cytoplasm
To carry the mRNA from the nucleus to the cytoplasm
To read the code in the mRNA and produce a chain of amino acids
To read the code in the mRNA and produce a chain of amino acids
Question 5
5. What is the effect of a mutation in a DNA sequence prior to transcription?(1 point)
Responses
A mutation could have a helpful, harmful, or no effect
A mutation could have a helpful, harmful, or no effect
Only a negative effect on the organism
Only a negative effect on the organism
A mutation would not affect the organism in any way
A mutation would not affect the organism in any way
Only a positive effect on the organism
Only a positive effect on the organism
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Question 1: gene, DNA, chromosome, nucleus, cell
Question 2: U (uracil)
Question 3: an mRNA strand
Question 4: To read the code in the mRNA and produce a chain of amino acids
Question 5: A mutation could have a helpful, harmful, or no effect