Cell Theory/Organelles
Who was the first to view and name a cell?
Robert Hooke
True or false: Mitosis takes place when a parent cell divides to create two identical daughter cells.
True
Different forms of a gene are called _____.
alleles
Give an example of a producer and a consumer.
plant, animal
Which organelle controls a cell and stores DNA?
nucleus
All living things are made of ______, cells are the basic unit of _____, and all cells come from _______.
cells, life, other cells
In which phase of mitosis do chromosomes line up along the middle of the cell?
metaphase
What do we call the genotype Aa? (homozygous dominant, heterozygous, or homozygous recessive)
heterozygous
A colony of fleas lives on a dog. This is an example of what type of symbiotic relationship?
parasitism
Photosynthesis and cellular respiration involve the rearrangement of _____, which means they follow the law of conservation of _____.
atoms, mass
What are the six characteristics of living things?
made of cells, grow/develop, reproduce, make and use energy, respond and adapt to environment, and have an organized structure
How are interphase I and interphase II of meiosis different?
DNA copies itself in interphase I, but not interphase II.
Brown eyes (E) are dominant. Blue eyes (e) are recessive. What would be the homozygous dominant genotype for brown eyes?
EE
Explain the difference between a population and a community.
Mrs. Wehrly will judge
All body systems work together to maintain _______, or balance, within the body.
homeostasis
Which type of cell has NO nucleus and NO membrane-bound organelles?
prokaryotic
Explain how Prophase I and Prophase II of meiosis are different.
Crossing over takes place in Prophase I but not prophase II.
Define “selective breeding” and explain how it can be beneficial in agriculture.
Mrs. Wehrly will judge
What does deforestation have to do with biodiversity?
decreases
Blood cells pick up ____ and drop off ____ in the lungs, and they pick up ____ and drop off ____ in the cells.
oxygen, carbon dioxide in lungs
carbon dioxide, oxygen in the cells
Name the organelle that produces energy for a cell AND the organelle in which photosynthesis takes place.
mitochondria, chloroplasts
Describe the purposes of mitosis and meiosis.
Draw a punnett square showing possible offspring between two parents who are homozygous dominant for brown eyes. Show genotype and phenotype percentages.
Mrs. Wehrly will judge.
grass --> grasshopper --> bird --> snake
If the grasshoppers were removed from this ecosystem, how might it affect the grass?
overgrowth
food for plants, produces oxygen, removes carbon dioxide, allows plants to survive and support ecosystems