Font size
WorksheetsFinal Exam 2021 7th Life Science
Total questions: 85
Worksheet time: 2hrs 36mins
Respiratory System
The digestive system interacts with the _____________ system to bring nutrients to cells.
nervous
muscular
skeletal
circulatory
An example of a decomposer is a(n)
Fungi
Fox
Rabbit
Grass
In genetics, a lower case letter...
is the dominant gene
is the recessive gene
Which of the following is NOT an SI/Metric Unit of Measurement?
meter
gram
inch
liter
What is the SI Unit for distance?
rise/run
foot
yard
meter
A _________ allele is hidden in the presence of a dominant allele.
Random
Dominant
Recessive
Hybrid
_____________________ is an example of phenotype.
BBbAaa
Chromosome
DNA
Blue eyes
This individual studied the inheritance of 7 different traits in pea plants.
Sir Issac Newton
Gregor Mendel
Michael Padilla
Albert Einstein
An organism's '2 letter'______________________ is its genetic make up.
Genotype
Phenotype
DNA
Codominance
Which of the following represents a heterozygous genotype?
YY
Yy
yy
An organism's physical appearance is known as its:
Genotype
Phenotype
DNA
Codominance
What is the probability that an offspring from the cross above has the genotype Rr?
25%
50%
75%
100%
Which answer belongs in the blank?
AA
Aa
aa
aaa
Mendel's experiments showed that the traits of an offspring were not a blend of the characteristics of parents.
True
False
This occurs when both alleles for a gene are expressed equally.
multiple alleles
polygenic inheritance
incomplete dominance
Codominance
This occurs when only one allele is partially dominant.
multiple alleles
polygenic inheritance
incomplete dominance
Codominance
Organs that work together are part of a(n) ________________________.
cells
tissue
organ system
What is the correct order of organization?
cells->tissue->organs->organ systems-> organism
tissue->cells->organs->organ systems-> organism
organs->organ systems-> organism->cells->tissue
An educated guess is called a
Guess
Hypothesis
Question
Idea
A single celled organism that does not have a nucleus nor membrane bound organelles
eukaryote
prokaryote
An organism made up of cells that have a nucleus and membrane bound organelles
Prokaryote
Eukaryote
The powerhouse of the cell
Nucleus
Golgi Complex
Endoplasmic Reticulum
Mitochondria
The movement of particles from an area of HIGH concentration to an area of LOW concentration
Active Transport
Diffusion
Osmosis
Endocytosis
Found only in a plant cell, this organelle is where photosynthesis takes place
Chlorophyll
Cell Wall
Chloroplast
Nucleus
The passing of traits from parent to offspring
Genetics
Heredity
Selective Breeding
Phenotype
A diagram that shows the occurrence of a genetic trait through several generations of a family.
Punnett Square
Homozygous
Heterozygous
Pedigree
A student thinks that the human body only works properly when cells are getting molecules from food and molecules from air. Is the student correct?
Yes, the body only works when cells get molecules from food and molecules from air.
No, the body only works when cells are getting molecules from different types of food.
No, the body only works when the lungs get molecules from air, and the stomach gets molecules from food.
No, the body works as long as cells are making all the molecules they need.
Stella’s respiratory system is not working well. Why is this a problem for her ability to exercise?
Her respiratory system will not be able to break down molecules from air into oxygen.
Her cells will not work well when they have low levels of oxygen.
Her digestive system will have to work twice as hard to get the same amount of energy from glucose molecules.
Her cells will not work because molecules from air will be too large for her body to use.
A patient has been eating healthy foods, but her respiratory system is not working as well as it usually does. Can this patient still exercise normally?
Yes, her body can get everything it needs for energy from molecules in food.
No, her respiratory system does not have enough oxygen to combine together to release energy.
No, her cells do not have enough oxygen to react with glucose and release energy.
No, her cells do not have enough oxygen to react with proteins to release energy.
the chemical reaction between oxygen and glucose that releases energy into cells
metabolism
diabetes
cellular respiration
anemia
Are microorganisms helpful or harmful?
Helpful
Both
Harmful
Neither
True of False: Antibiotics kill only harmful bacteria.
False
True
True or false: We can live without microorganisms.
True
False
The space exploration program has hired you for advice on how to keep astronauts healthy in the space shuttle. How can the program's doctors make sure the astronauts’ bodies work well enough to exercise in space?
The doctors could make sure that the astronauts’ bodies can make enough energy by getting enough sleep.
The doctors could make sure the astronauts’ stomachs are getting the molecules they need from food and air.
The doctors could make sure the astronauts’ cells are getting the molecules they need from food and air.
The doctors could make sure the astronauts’ cells are getting different types of molecules from food.
2. Some types of syrup are almost entirely made of glucose molecules. If a person ate some syrup like this, what would happen to her ability to exercise?
It would be harder for her to exercise because her digestive system would need to use more enzymes to combine the glucose molecules together.
It would be easier for her to exercise because glucose moves through the circulatory system faster than other food molecules usually do.
Nothing would happen to her ability to exercise, but her respiratory system would not work as hard, since glucose has more energy than oxygen molecules.
Nothing would happen to her ability to exercise, but her digestive system would not work as hard, since glucose is already small enough to get to her cells.
Doctors tested a patient and found that his cells contained normal levels of oxygen and glucose molecules, and no starch molecules. Will this patient be able to exercise normally?
Yes, the glucose and oxygen molecules can react together to release energy for the body to function.
No, his digestive system is not breaking down food molecules; his cells need starch molecules to react with glucose, which releases energy.
No, his body systems are working, but he needs to eat different food; in cells, only amino acids can react with oxygen to release energy.
Yes, as long as his cells have glucose, they don’t need anything else to release energy for the body to function.
4. Some problems with the digestive system make it very difficult for the body to digest enough food. Why would it be harder to exercise when you have a digestion problem like this?
You would not be able to sleep, which would make you too tired to exercise.
Your cells would have molecules from air, but would not get enough molecules from food.
You would need to breathe in a lot more air because your body would have fewer molecules from food.
You would not get any of the molecules your cells need to exercise.
10. Asthma is a condition in which it can be very hard for a person to breathe in enough air. Would it also be difficult for someone with asthma to exercise?
No, as long as the person is getting enough sleep, he will make enough energy to exercise.
No, as long as the person's cells are getting different types of molecules from food, he can still exercise.
No, the person's cells may not have everything they need, but his body can still exercise normally.
Yes, it will be difficult for a person with asthma to exercise because his cells need molecules from air.
A father sheep has curly wool while a mother sheep has straight wool. Which of these statements explains why one of their baby lambs has curly wool?
The baby lamb inherited its copies of the gene for wool shape from its father and not from its mother. Just like its father’s genes, those genes instruct for proteins that connect in ways that make its wool curly.
The baby lamb inherited its copies of the gene for wool shape from its father and not from its mother. Those genes connect together to make its wool curly.
The baby lamb inherited one copy of the gene for wool shape from its father and one copy from its mother. That gene combination instructs for proteins that make its wool curly.
The baby lamb inherited one copy of the gene for wool shape from its father and one copy from its mother. Those genes connect together to make its curly wool.
Three tigers have different parents. They all have the same proteins for stripe pattern in their cells. What can you say about the tigers' stripe patterns?
They will have the same stripe patterns since all tigers have the same stripe patterns.
They will have the same stripe patterns since their proteins for stripe pattern are the same so the proteins will connect in the same way.
They will have different stripe patterns because even with the same proteins for stripe pattern, the proteins can connect in different ways.
They will have different stripe patterns since only offspring from the same parents have the same stripe patterns.
Two goldfish have different parents. One fish has a split tail and the other does not. Why do the goldfish have tails with different shapes?
Each goldfish has a different tail shape because offspring from different parents will have different tail shapes.
Each goldfish has a different tail shape because they have different versions of the gene for tail shape that connect together to make different tail shapes.
The goldfish have different versions of the gene for tail shape. The genes are split inside one goldfish’s tail but not inside the other’s.
The goldfish have different versions of the gene for tail shape, which instruct for different proteins that connect in different ways to make different tail shapes.
A young goat has downward-curved horns. Its father has upward-curved horns while its mother has downward-curved horns. Which of these statements explains why the young goat has downward-curved horns?
The young goat inherited one copy of the gene for horn shape from its mother and one copy from its father. That gene combination instructs for proteins that connect in ways that make downward-curved horns.
The young goat inherited one copy of the gene for horn shape from its mother and one copy from its father. Those genes connect together to make its downward-curved horns.
The young goat inherited its copies of the gene for horn shape from its mother and not from its father. Just like its mother’s genes, those genes instruct for proteins that connect in ways that make its downward-curved horns.
The young goat inherited its copies of the gene for horn shape from its mother and not from its father. Those genes connect together to make its downward-curved horns.
There are two junco birds that each have different proteins in their cells for beak pointiness. They have different parents. What can you say about the birds' beak pointiness?
They will have the same beak pointiness because even with different proteins for beak pointiness, the proteins can connect in the same way.
They will have different beak pointiness since offspring from different parents will have
different beak pointiness.
They will have different beak pointiness since their proteins for beak pointiness are different so the proteins will connect in different ways.
They will have the same beak pointiness since all junco birds have the same beak pointiness.
The body cells of scorpions have proteins that connect together. In one scorpion, the structure of the proteins in the body cells changed, but the amount of that type of protein in the cell stayed the same. What happened to the function of that type of protein?
The changed protein connects differently, but its function doesn’t change.
The changed protein connects differently, so its function changes.
The changed protein connects in the same way, but its function changes.
The amount of that type of protein stayed the same, so its function doesn’t change.
Hannah is trying to figure out how tooth size is determined in two different wolves. In wolf 1, the copies of the gene are different from each other. In wolf 2, the copies of the gene are the same as each other. How does this affect how many types of proteins there are in each tooth cell?
Wolf 1 has one type of protein for the tooth size feature. Wolf 2 has one type of protein for the tooth size feature.
Wolf 1 has two types of protein for the tooth size feature. Wolf 2 has one type of protein for the tooth size feature.
Wolf 1 has two types of protein for the tooth size feature. Wolf 2 has two types of protein for the tooth size feature.
It is impossible to say anything about proteins from the given information.
Two fruit flies have different parents. One fruit fly has orange eyes while the other has red eyes. Why do the fruit flies have different eye colors?
Each fruit fly has a different eye color because offspring from different parents will have different eye colors.
Each fruit fly has a different eye color because they have different versions of the gene for eye color that connect together to make different eye colors.
The fruit flies have different versions of the gene for eye color, which instruct for different proteins that connect in different ways to make different eye colors.
The fruit flies have different versions of the gene for eye color, and the genes are different colors in each fruit fly’s eyes.
