Cells/ Photosynthesis
What are all living things made of?
Cells
Which body system breaks down nutrients and absorbs glucose into the blood stream?
Digestive system
How does variation first occur?
a Mutation
What do the arrows in a food web represent?
Towards which organism should they point?
The arrows represent the flow of energy and matter in the ecosystem
They should point to the consumer
Electric impulses make muscles move in order to eat. What body system controls these electric impulses?
Nervous system
Which cell organelle makes ATP?
Mitochondria
Nutrients and oxygen are transported through a network running throughout the body. What is the network called?
Circulatory system
Any process in which scientists directly manipulate (change) an organism’s DNA is called
Genetic engineering
grass --> bunny--> fox--> hawk
How would decreasing the bunnies effect the grass, fox, and hawk populations?
grass- increase
fox- decrease
hawk- decrease
How do humans interpret stimuli from the environment?
The 5 senses
Which cell organelle converts light energy into glucose?
Chloroplast
What are the inputs of cell respiration?
What body systems provide them?
O2 from respiratory system
glucose from digestive system
What is an example of asexual reproduction? Provide an example and explanation
Binary Fission - bacteria
Budding - hydra
Regeneration - starfish
What are the three types of evidence of evolution we have discussed?
Fossil records, embryological development, anatomical structures
G= Green g= yellow
Give an example of homozygous recessive genotype
What is the phenotype?
gg
yellow
What are the differences between plant and animal cells?
Plant cells have a cell wall and chloroplast
Maria is a soccer player who also has asthma. Her respiratory system is not as efficient during her game because of asthma.
Describe one consequence and explain the scientific reason behind it.
She will not have enough energy because she is not getting enough oxygen which is needed for cellular respiration. Cellular respiration makes ATP (engery)
A patient with the genetic disease cystic fibrosis has the mutated gene replaced with a healthy one.
What is this an example of?
Gene Therapy
Bacteria are becoming resistant to antibiotics. What is this an example of?
Natural selection
How scientist identify nonliving samples using a microscope?
Draw and label a plant cell. Be sure to include 5 cell structures that we have learned about.
Square cell including a labeled Mitochondria, nucleus, cell wall, cell membrane, and chloroplast.
At the end of summer, I took down my pool. The grass underneath was brown and dead. Explain why this happened
Lack of sunlight means photosynthesis could not occur, so the grass could not make glucose, which is needed for cellular respiration.
What are the advantages and disadvantages of asexual and sexual reproduction?
Asexual- fast population growth, no genetic variation
Sexual- slow population growth, genetic variation
Explain how evolution and adaptation can help a species survive when an environment changes over time.
an organism with the best fit traits to survive in an environment will reproduce and pass those traits on. This eventually leads to a shift in the traits of a species to survive in their environment leading to evolution of a species.
If the parents are Gg and Gg. Determine the possible percent genotypes and percent phenotypes of the offspring.
G- green g- yellow
25% GG, 50% Gg, 25% gg
75% green, 25% yellow