7th Grade Science
Science is awesome
Rockstar
Party time
Grab Bag
Punnett Square!
100
This is the term for a consumer who eats both plants and animals.
What is an omnivore?
100
A unicellular organism is a living thing made of
what is one cell?
100
The clear, thick jelly like substance that fills the inside of the cell is the
cytoplasm
100
I am rigid and stiff, and I keep a cell strong. I’m found only in plants, I’ve been there all along.
cell wall
100
This is the thing in an experiment that the scientist changes on purpose (the cause).
What is the independent variable?
100
Dimples are dominant to no dimples. Ben’s mom is heterozygous for dimples and his dad is homozygous dominant for the trait. What genotypes can result from the cross of Ben’s parents?
DD, Dd
200
What three things DO PLANT CELLS HAVE that animal cells do not?
What is a " cell wall, large vacuole, chloroplasts?"
200
A prokaryotic cell is one that ____ while a eukaryotic cell is one that ____.
does not have a nucleus; has a nucleus
200
I am the powerhouse of the cell, and I make energy. I break down food to release ATP
mitochondria
200
Another word for a semi-permeable membrane
Cell membrane
200
I’m the boss of the cell telling others what to do. I control the cell’s activities, which in turn is controlling YOU.
Nucleus
200
In rabbits, black fur (B) is dominant over brown fur (b). If a rabbit has brown fur, what can you conclude about its genotype based on your Punnett square drawing?
bb
300
These are the 7 characteristics of all living things.
What is MRS GREN? (student states each letter)
300
I make glucose, a sugar, and I’m found in plants like trees. I’m green and I’m sly, using the sun’s energy.
chloroplast
300
3 part of the cell theory
1. All living things are composed of cells
2. Cells are the basic unit of structure and function in living things
3. All cells are produced from other cells
300
The movement of substances across the cell membrane that does require the use of energy by the cell is
Active Transport
300
This is the element that makes up most of the mass of the sun
what is hydrogen?
300
Brown eyes are dominant to blue eyes. Both of Lisa’s parents have brown eyes, but Lisa has blue eyes. What is the BEST explanation for why Lisa has blue eyes?
Both of Lisa’s parents carry a gene for blue eyes.
400
Asexual reproduction type that occurs when a nucleus divides
What is binary fission/mitosis?
400
Sexual reproduction requires ______ parent(s) and asexual reproduction requires ______ parent(s).
two, one
400
Organelle Identification
What is D?
Endoplasmic Reticulum
400
The hydra produces a bud that is a copy of itself. When mature, the bud will fall off and be a new organism.
What type of reproduction is this?
Asexual
400
The diffusion of water through a semipermeable membrane is
Osmosis
400
In purple people eaters, one horn is dominant and no horn is recessive. If purple people eater that is heterozygous for horns crosses with one that does not have horns, what are the genotypes of the parents?
Hh, hh
500
How many alleles does a child get from each parent for a trait?
1
500
An offspring that is blue with red specks is the cross between a red fish and blue fish. This is an example of?
codominance
500
There are four types of blood found in the human population: A, B, AB and O. What type of inheritance is AB an example of?
Codominance
500
A black cat and an orange cat mate. In the litter of kittens, all are orange and black calico mixed. What type of inheritance is this an example of?
Incomplete dominance
500
The part of the atmosphere responsible for blocking out the majority of the sun's U.V. radiation
What is the Ozone?
500
If an individual has genotype Dd, they are _____.
heterozygous dominant
600
A group of tissues that are similar in structure and function is called a/(an)
a.Cell
b.Organ
c.Organ system
d.Organism
b.Organ
600
What does DNA stand for?
Deoxyribose nucleus acid
600
How many chromosomes are in a human body cell?
46 chromosomes
600
What is the genotype for a male?
XY
600
Who won the 2018 MLS Cup?
Atlanta United
600
In pepper plants, the allele for hot flavor (H) is dominant to the allele for mild flavor (h). A farmer crosses a homozygous dominant plant with a recessive (mild) plant. What percentage of the offspring from this cross will have hot flavor?
100%
700
The smallest type of cell with very few organelles.
What is Prokaryotic or Bacteria?
700
Jose plays the piano extremely well but his parents do not play at all. What type of trait is piano playing?
aquired
700
What is a phenotype
A trait you can see!
700
What type of reproduction has occurred when an organism is produced from two parents?
sexual
700
You and your lab partner are observing a cell under a microscope, but you do not know whether it is a eukaryote or a prokaryote. Which of the following observations regarding the chromosomes would you use to immediately conclude that the cell is a eukaryote?
a. The chromosomes are circular in structure.
b. The chromosomes are housed in a membrane-enclosed nucleus.
c. The chromosomes contain very few proteins.
d. The chromosomes are very simple in structure.
b. The chromosomes are housed in a membrane-enclosed nucleus.
700
What is the probability that a hamster will have black, fine hair?
4/16 (1/4)