Name: _ _ _Period: _ _

Review Packet for 7thGrade Science FinalFormat:Part 1 – 1-100 Multiple Choice Questions(You will be using a scantron.)

Part 2 – 101-114 Short Answers(You will be using a separate answer sheet.)

Part 3 – 115-119 Short Answers(You will be using a separate answer sheet.)

STATION 1Life Science 1. The function of each organelle: Match the term from the word bank to its functiona. _________ -control center of the cell. Where the chromosomes are found. Control the heredity of traits.

b. _____________ -powerhouse of the cell. Where energy is made.

c. ______________ -controls the passage of nutrients into the cell and wastes out of the cell.

d.________________ -are made of DNA. Contain genes which contain recipes for making proteins.

e. ______ _______ -only found in plant cells. Protects and provides support for the cell.

f. ______________ -read the recipes for making protein. This is where proteins are made.

g.______________ -only found in plant cells. Where food is made using chlorophyll.

Site of photosynthesis

h.__________ -stores water and nutrients.

i. _____________-jelly-like fluid that holds organelles together and allows movement in the cell.

j. _______ -carries the code which produces proteins and controls all activities in the cell.

k._______________ ______________: it is the transport system. It transports ribosomes.

. .

STATION 22. Label the plant and animal cell below and then complete the differences and similarities in the Venn diagram below-

3. Look at the diagram below.

This is the process of _____________ reproduction because __________________________________________________________.

Plant Animal

b

a

STATION 3

4. The picture below shows the joining of the egg and sperm to produce a zygote.

This process is called ___________reproduction

5. The number of chromosomes in a human body cell- ____

6. The number of chromosomes found in a human sex cell-____

7. The male gives ______ the number of chromosomes, which is ___%.

8. The female gives ______ the number of chromosomes which is ___%.

9. The two types of sex cells are _____and ______.

10.The male sex cell is the _______ and the female sex cell is the ______

11. The cell division that makes the sex cells and produces eggs and sperms each in which that has half the number of chromosomes is _________.

11a. __________ – cell divison where two identical cells are made. All your BODY cells are made this way. Sex cells are NOT considered Body cells. Hint: mitosis – The “T” stands for TWIN. Makes a twin.

STATION 412. Answer the following questions based on the diagram below.

a. This is an example of ______reproduction. Because there are two parents.b. The parents have 4 children. They have 2 boys and 2 girls.c. The father’s genotype is ______ (N n). The mom’s genotype is _________nnd. How many children inherited the recessive allele? _________%e. How many children’s phenotype represented the recessive trait? __________ % f. The recessive trait doesn’t show in the phenotype of the children with the

genotype Nn because they have a _____________allele which over powers (masks) blocks it out, covers it, the ___________ allele.

g. Fill-in the Punnett Square based on the diagram above.n n

N

n

STATION 513.In terms of capital letters (B) and lowercase letters (b), the allele for a recessive trait would be ________________ dominant would be _______________

14.In terms of capital letters (B) and lowercase letters (b), the alleles for a hybrid trait would be ____and pure trait would be ____or_____

15._______________ _______________ - transferring a gene from one organism to another. For example when we went to the DNA Learning center, we transferred the gene from the jelly fish to the bacteria and made the bacteria glow in the dark.

16._____________ ____________ -choosing to mate two organisms to get a desired result. For example, pollinating a tomato plant that produces large tomatoes with one that is seedless.

17.The order of cellular organization is

1. ____________

2. ____________

3. _____________

4. ____________

5. _____________

18.Segments of chromosomes that are recipes for specific traits are called _________.

19.The change in the sequence of the order of the bases in the DNA code __________.

20. Abnormal cell division results in a _________ An example of this is _______.

Station 621.Nitrogen bases-a.adenine pairs with _______________

b. thymine pairs with ______________

c. guanine pairs with _______________

d. cytosine pairs with ______________

22. Bonds the nitrogen bases together- ______________

23. According to the pedigree chart, “A” is the allele for a normal person and “a” is the allele for an affected person. Look at the key and the pedigree chart. Then answer the questions.

a.How many children did the couple have? ____b. How many people are affected ___ Male or female?

_________c. How many people have the genotype “AA” or “Aa”?

% 0%orn

Station 724. Punnett Squaresa. In purple people eater, one-horn is dominant (H) and no horns is recessive (h). Draw a Punnett squares showing the cross of a purple people eater that is hybrid for horns with a purple people eater that does not have horns. (recessive)

H hHh x hh % genotype HH

% genotype Hh h

% genotype hh h% phenotype one-h% phenotype no horns b. Look at the Punnett Square below. Each offspring has a hybrid genotype. Therefore, the parent’s genotypes would be ______ x ______

Tt Tt

Tt Tt

Station 8The Nature of Science1.Fill-in the steps of the scientific method. a. __________ -the question you want to answer.

b. ___________ -supplies you need to conduct the experiment.

c. ___________ -your educated guess of the answer to the problem.

d. ___________ -the variable that is being manipulated or tested.

e. ______________ -the group that does not receive the independent variable and is compared to the experimental group.

f. ________________ -the group that receives the independent variable.

g.______________ -the results of the experiment.

2. Read the passage and answer the questions.A group of scientists at Columbia University wanted to find out if drinking one soda with caffeine had a significant effect on the driving skills of adults. To test their hypothesis, they asked for volunteers who were 35-70 years old, 140-180 lbs. and drank 2-4 sodas with caffeine per week.Two groups were set up. Each group had equal number of men and women. The first group was given diet soda with caffeine in it and the second group was given caffeine-free soda. Both groups received their drinks in a cup so they did not know what type of soda they were drinking.a.What is the problem? b. The experiment group is ____________________________________c. The control group is _______________________________________d. The independent variable is___________e. The groups were similar because ______________________________

_________________________________________________________f. They use diet soda because __________________________________g. The placebo is __________________.

Station 93. A student sets up the following experiment using tomato plants and potting soil. Use this picture to help you answer the questions below.

a.By looking at the pots, what is the independent variable? ___________________________

b. What would be a good problem for this set-up? ______________________________________________________________________

c. What are the things that need to remain constant? _______________________________________________________________________.

Station 104. Fill-in the chart below for the scientific tools.Instrument Name Measures Unit

beaker Volume of a liquid ML or L

Volume of ML or Lliquid/volume of

irregular-shaped cm3

object

mass grams

Force (weight) Newtons (N)

Volume of a liquid

ML

Distance/length

millimeter, centimeters, & meters