7/30/2019 2nd 6 weeks review answers

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2nd 6 weeks Exam 7th Grade Science

1. Atoms are made up of all EXCEPTa. protonsb. neutrons

c. compounds

2. The nucleus of an atom is made up ofa. protons and neutrons

b. neutrons and electronsc. compounds

3. Atoms combine using ___________ bondsa. electrical

b. chemicalc. compounds

4. A pure substance that cannot be separated into simplersubstance by physical or

chemical means is calleda. element

b. matterc. brains

5. Organic compounds containa. carbonb. metalsc. stars

6. Inorganic compounds containa. carbon

b. metalsc. stars

7. Organic compounds containa. carbonb. metalsc. stars

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8. During photosynthesis, chlorophyll absorbs _____.a. water c

.light energy

b. glucose d. carbon dioxide

9. During cellular respiration, your body breaks down glucose andreleases _____.a.

ATP c. hydrogen

b. oxygen d. chlorophyll

10. In which part of a plant does photosynthesis take place?a. the rootsb

.

the leaves

c. the flowers

11. Which growth response allows plant tendrils (vines) to wrap around an object?a. gravitropism c. thigmotropism

b. phototropism d. hydrotropism

12. A plants response to light is called

a. gravitropism c. thigmotropism

b. phototropism d. hydrotropism

13. What is the purpose of cellular respiration?a. to make rainb.

to release energy

c. to make chlorophyll

14. Which of the following is NOT part of the respiratory system?a. pharynx c. tracheab.

ventricle d. Bronchus

16. When we breathe, we inhale oxygen and exhale___________________.

a. carbon dioxide c. hydrogenb. diffusion b. energy

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15. Breathing is a ___________ process and respiration is a

____________ process.a. electrical, long c. long, short

b. physical, chemical d. chemical, physical

16. The primary function of the respiratory system is to supply theblood with _______ in order for the blood to deliver it to all parts ofthe body.a. carbon dioxide c

.oxygen

b. hydrogen d. water

17. Which of the following is NOT part of the skeletal system?

a. bones c.

liver

b. joints d. cartilage

18. Which of the following is NOT a function of the skeletal system?a. movement c. stores nutrientsb. support d

.Produces glucose

19. What kind of joints are the hips and shoulders?

a. hinge c.

Ball and socket

b. pivot d. saddle

20. What kind of joints are the knees, toes and fingers?a.

hinge c. Ball and socket

b. pivot d. saddle

21. What kind of bones are the toes and fingers?a.

phalanges c. humorous

b. clavicle d. tibia

22. Which is not a type of muscle?a. smooth c. skeletal

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b. cardiac d.

long

23. Skeletal muscles are ____________, while smooth and cardiacmuscles are ______________?

a. smooth, striated c. involuntary, voluntaryb.

voluntary, involuntary d. long, short

24. Cardiac muscles move the ___________.a. brain c

.heart

b. body d. leg25. Muscles are attached to bones by thick bands of tissue called

______a. ligaments c

.

tendons

b. cartilage d. organs

26. The outer layer of the skin, mostly dead cells, is called the___________________.a. dermis c. hypodermisb.

epidermis d. tibia

27. Blood vessels and nerves are located in the middle layer of the

skin, the ________________.a.

dermis c. hypodermis

b. epidermis d. tibia

28. _____________ is a pigment that protects your skin and gives itcolor.a. dermis c. glandb.

melanin d. Cilia

29. Which is NOT a function of the Integumentary system?a. protection c. regulating body

temperatureb. production of vitamin D d

.oxygen delivery

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30. _____________ is a pigment that protects your skin and gives itcolor.a. dermis c. glandb

.

melanin d. Cilia

What does CTOOO stand for?

Cells _________________________

T issue_________________________

O rgan_________________________

O rgan system_________________________

O rganism________________________