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2ND QTR EXAM REVIEW IN SCIENCE-GRADE 9

Total questions: 58

Worksheet time: 19mins

Name
Class
Date
1.

What is the primary pigment responsible for photosynthesis?

a)

Carotenoids

b)

Chlorophyll

c)

Anthocyanins

d)

Flavonoids

2.

What is the primary source of energy used by plants during photosynthesis?

a)

Heat energy

b)

Wind energy

c)

Light energy

d)

Chemical energy

3.

Which part of the plant cell is responsible for photosynthesis?

a)

Nucleus

b)

Mitochondria

c)

Chloroplast

d)

Ribosome

4.

What are the two main products of photosynthesis?

a)

Glucose and oxygen

b)

Carbon dioxide and water

c)

Glucose and carbon dioxide

d)

Oxygen and water

5.

During which stage of photosynthesis is oxygen released?

a)

Light-dependent reactions

b)

Calvin cycle

c)

Photosystem II

d)

Krebs cycle

6.

What is the role of chlorophyll in photosynthesis?

a)

Absorbing carbon dioxide

b)

Storing glucose

c)

Capturing light energy

d)

Releasing oxygen

7.

In which part of the plant do the light-dependent reactions of photosynthesis occur?

a)

Stroma

b)

Thylakoid

c)

Nucleus

d)

Vacuole

8.

What is the primary function of ATP and NADPH in photosynthesis?

a)

Absorbing light energy

b)

Transporting water

c)

Storing glucose

d)

providing energy for chemical reactions

9.

Which gas is taken in by plants during photosynthesis?

a)

Oxygen

b)

Nitrogen

c)

Carbon dioxide

d)

Hydrogen

10.

What biological pigment is responsible for the blue color of blue berries and purple color of egg plants?

a)

Carotenoids

b)

Anthocyanin

c)

Lycopene

d)

Flavonoids

11.

Which of the following is the final electron acceptor in the electron transport chain?

a)

Oxygen

b)

Carbon dioxide

c)

Water

d)

NADH

12.

What are the two main types of cellular respiration?

a)

Aerobic and anaerobic

b)

Photosynthesis and fermentation

c)

Oxidation and reduction

d)

Catabolism and anabolism

13.

How many ATP molecules are produced through glycolysis?

a)

4

b)

33

c)

36

d)

2

14.

Which stage of cellular respiration produces the most ATP?

a)

Glycolysis

b)

Krebs cycle

c)

Electron transport chain

d)

Fermentation

15.

What is the final product of glycolysis?

a)

Carbon dioxide

b)

Water

c)

Lactic acid

d)

Pyruvate

16.

What type of bond is formed when electrons are transferred from one atom to another?

a)

Covalent bond

b)

Ionic bond

c)

Metallic bond

d)

Hydrogen bond

17.

What type of bond is formed when electrons are shared between atoms?

a)

Covalent bond

b)

Ionic bond

c)

Metallic bond

d)

Hydrogen bond

18.

Which of the following compounds contains an ionic bond?

a)

H₂O

b)

NaCl

c)

CO₂

d)

CH₄

19.

Which of the following compounds contains a covalent bond?

a)

MgCl₂

b)

KBr

c)

HCl

d)

NaF

20.

Which of the following is NOT a characteristic of metals?

a)

Malleability

b)

Ductility

c)

Brittle and dull

d)

Good conductors of heat and electricity

21.

Nonmetals are generally:

a)

Good conductors of heat and electricity

b)

Poor conductors of heat and electricity

c)

Malleable and ductile

d)

Shiny and lustrous

22.

Metalloids have properties of:

a)

Only metals

b)

Only nonmetals

c)

Both metals and nonmetals

d)

Neither metals nor nonmetals

23.

Which of the following is an example of a metalloid?

a)

Iron

b)

Silicon

c)

Oxygen

d)

Gold

24.

What is the term for the ability of a metal to be hammered into thin sheets?

a)

Ductility

b)

Conductivity

c)

Malleability

d)

Luster

25.
The equation for photosynthesis is listed above.  What are the products of photosynthesis?
a)
CO2 and H2O
b)
C6H12O6 and H2O
c)
CO2 and C6H12O6
d)
C6H12O6 and O2
26.
The process that releases energy from food and has to have oxygen present is called?
a)
Synthesis
b)
Cellular Respiration
c)
Fermentation
d)
Photosynthesis
27.
Photosynthesis occurs in which organelle?
a)
Chloroplast
b)
Endoplasmic Reticulum
c)
Vacuole
d)
Mitochondrion
28.
Which process requires the presence of oxygen to produce energy?
a)
Glycolysis
b)
Anaerobic Respiration
c)
Transpiration
d)
Aerobic Respiration
29.
The two main processes by which cells absorb, release, and use energy are
a)
Fermentation and respiration
b)
Digestion and Photosynthesis
c)
Photosynthesis and Cellular Respiration
d)
Aerobic and anaerobic respiration
30.
In cells, the energy available in food is used to make an energy rich compound called?
a)
Water
b)
Glucose
c)
ATP
d)
ADP
31.
What cellular process occurs when you exhale CO2 out of your lungs?
a)
Photosynthesis
b)
Cellular Respiration
32.
What is the pigment that makes a plant green?
a)
Chloroplast
b)
Chlorophyll
c)
Cytoplasm
d)
Mitochondria
33.
Which organism is most responsible for performing cellular respiration?
a)
A
b)
B
c)
C
d)
D
34.
Which organelle contains chlorophyll?
a)
A
b)
B
c)
C
d)
D
35.
Cellular Respiration uses two products of photosynthesis as reactants to produce ATP. Which two products are these?
a)
A
b)
B
c)
C
d)
D
36.

Where does the Calvin Cycle take place?

a)

Thylakoid

b)

Grana

c)

Stroma

d)

Stoma

37.

Where does the light reaction take place?

a)

Thylakoid

b)

Grana

c)

Stroma

d)

Stoma

38.

Which of the following describe ionic bonding?

a)

It involves the transfer of electrons

b)

It involves sharing of electrons.

c)

It involves transfer of protons.

d)

It involves sharing of protons.

39.

Which of the following pairs of atoms is most likely to form a covalent compound?

a)

Ba and Cl

b)

Na and O

c)

Mg and Br

d)

C and O

40.

In Ionic Bonding, metals most likely to

a)

lose electron

b)

lose proton

c)

gain electron

d)

gain proton

41.

Atoms need to be bonded in order to attain the stability needed like that of _______.

a)

alkali metals

b)

alkaline earth metals

c)

noble gases

d)

semi metals

42.

Which of the following is a correct lewis structure for carbon dioxide CO2?

a)
b)
c)
d)
43.

Which atomic model is proposed by Schrodinger?

a)

nuclear model

b)

planetary model

c)

raisin bread model

d)

quantum mechanical model

44.

What are the orbitals present in the fifth principal energy level?

a)

s orbital

b)

s,p orbital

c)

s,p,d orbitals

d)

s, p, d, and f orbitals

45.

An electron can emit energy when it jumps to a higher energy level.

a)

TRUE

b)

FALSE

46.
What electron configuration matches an oxygen atom?
a)
1s22s22p63s2, 3p64s23d104p5
b)
1s22s22p4
c)
1s22s22p6
d)
1s22s22p63s23p64s23d1
47.
What atom matches this electron configuration?
1s22s22p63s23p64s23d10
a)
Zinc
b)
Copper
c)
Nickel
d)
Germanium
48.
The electron configuration of an atom is 1s22s22p6.  The number of electrons in the atom is 
a)
3
b)
6
c)
8
d)
10
49.

Which of these is a property of metals?

a)

It's malleable

b)

It's an insulator

c)

It's very brittle

50.

Which element category could have the characteristic of brittle? Choose the best answer.

a)

Metal

b)

Nonmetal

c)

Metalloid

d)

Metalloid and Nonmetal

51.

Silicon is a semiconductor and has properties of both metals and nonmetals. What type of element is Silicon?

a)

Metal

b)

Nonmetal

c)

Metalloid

52.

All of these properties describe metals except...

a)

malleable

b)

conductors

c)

brittle

d)

shiny

53.

All of the following would classify an element as a metal except?

a)

Dull

b)

Lustrous

c)

Malleable

d)

Conductor

54.
a)

Metal

b)

Nonmetal

c)

Metalloid

55.
a)

Metal

b)

Nonmetal

c)

Metalloid

56.

Which element is a nonmetal?

a)
Titanium
b)
Selenium
c)
Potassium
d)
Polonium
57.

What category of elements is shaded in the periodic table?

a)

Metals

b)

Nonmetals

c)

Metalloids

58.

What category of elements is shaded in the periodic table?

a)

Metalloids

b)

Metals

c)

Nonmetals

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