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Grade 9 Biology Quiz

Total questions: 45

Worksheet time: 27mins

Name
Class
Date
1.

A group of similar cells that work together to perform a specific function is called a/an:

a)

Organ

b)

Organ system

c)

Tissue

d)

Organism

2.

Which type of animal tissue is specialized for covering surfaces, lining cavities, and forming glands?

a)

Connective tissue

b)

Muscular tissue

c)

Nervous tissue

d)

Epithelial tissue

3.

The tissue responsible for transmitting electrical signals throughout the body is:

a)

Muscular tissue

b)

Connective tissue

c)

Nervous tissue

d)

Epithelial tissue

4.

Which of the following is an example of an organ?

a)

Blood

b)

Skin

c)

Neuron

d)

Bone cell

5.

A group of different organs that work together to perform major functions in the body is called a/an:

a)

Organism

b)

Tissue

c)

Organ system

d)

Cell

6.

The human digestive system is an example of a/an:

a)

Tissue

b)

Organ

c)

Organ system

d)

Cell

7.

Which type of plant tissue is responsible for growth at the tips of roots and shoots?

a)

Xylem

b)

Phloem

c)

Meristematic tissue

d)

Permanent tissue

8.

The vascular tissue in plants that transports water and minerals from the roots to the rest of the plant is:

a)

Phloem

b)

Epidermis

c)

Xylem

d)

Parenchyma

9.

Which of the following is a main organ of the human respiratory system?

a)

Stomach

b)

Heart

c)

Lungs

d)

Brain

10.

The function of muscular tissue is primarily for:

a)

Protection

b)

Support

c)

Movement

d)

Communication

11.

The process by which living organisms obtain and use food for growth, energy, and repair is called:

a)

Respiration

b)

Excretion

c)

Nutrition

d)

Reproduction

12.

Organisms that can produce their own food using sunlight are called:

a)

Heterotrophs

b)

Saprophytes

c)

Parasites

d)

Autotrophs

13.

Which of the following is a primary site for the absorption of digested food in humans?

a)

Stomach

b)

Large intestine

c)

Esophagus

d)

Small intestine

14.

Kwashiorkor is a nutritional deficiency disease caused by a lack of:

a)

Vitamin C

b)

Iron

c)

Protein

d)

Carbohydrates

15.

Which class of nutrients is the body's primary source of energy?

a)

Proteins

b)

Vitamins

c)

Carbohydrates

d)

Minerals

16.

The enzyme found in saliva that begins the digestion of starches is:

a)

Pepsin

b)

Lipase

c)

Amylase

d)

Trypsin

17.

Which of the following is NOT a macronutrient required in large amounts by the body?

a)

Carbohydrates

b)

Proteins

c)

Fats

d)

Vitamins

18.

What is the main function of water in the human body regarding nutrition?

a)

Providing energy

b)

Building muscles

c)

Acting as a solvent for chemical reactions and transport

d)

Protecting organs

19.

An animal that feeds exclusively on plants is called a/an:

a)

Carnivore

b)

Omnivore

c)

Herbivore

d)

Decomposer

20.

The final product of carbohydrate digestion that is absorbed into the bloodstream is:

a)

Fatty acids

b)

Amino acids

c)

Glucose

d)

Glycerol

21.
What is the function of the cell nucleus found in both plant and animal cells?
a)
to produce energy
b)
to control cell activity
c)
to remove waste products
d)
to allow molecules to enter the cell
22.
Which cell structure is found in plant and animals cells and controls what can come into or leave a cell?
a)
cell membrane
b)
cytoplasm
c)
nucleus
d)
vacuole
23.
Which structures are found in every living cell?
a)
cell membrane and cytoplasm
b)
chloroplasts and mitochondria
c)
a cell wall and nucleus
d)
chloroplasts and cell wall
24.
Which of the following is the smallest unit of life that can carry out all life functions?
a)
the mitochondria
b)
the vacuoles
c)
the nucleus
d)
the cell
25.

TRANSCRIBE this DNA sequence into RNA: TAC GTT ACT

a)

AUG CAA UGA

b)

ATG CAA TGA

c)

AUG GAT UGA

d)

TAC GTT ACT

26.

How many nucleotides equal make up a codon?

a)

1

b)

2

c)

3

d)

4

27.

Where does TRANSCRIPTION occur in EUKARYOTIC cells?

a)

Nucleus

b)

Ribosome

c)

Cytoplasm

d)

Mitochondria

28.

Which RNA carries the message from the DNA molecule out of the nucleus?

a)

mRNA

b)

rRNA

c)

tRNA

29.
Which of the following is found in plant cells but not in animal cells? 
a)
Cytoplasm
b)
Mitochondria
c)
Cell Wall 
d)
Ribosomes 
30.
What are the three components of a nucleotide?
a)
sugar, hydrogen, nitrogen base
b)
sugar, oxygen, nitrogen base
c)
sugar, phosphate, nitrogen base
d)
sugar, phosphate, protein
31.
Amino acids are the building blocks of... 
a)
DNA
b)
RNA
c)
Atoms
d)
Proteins
32.
What is the difference between DNA and RNA in terms of bases?
a)
RNA contains uracil in place of thymine
b)
RNA contains uracil in place of adenine
c)
RNA contains uracil in place of guanine
d)
RNA contains uracil in place of  cytosine
33.
Which of the following statements is true?
a)
DNA is single-stranded
b)
RNA is single-stranded
c)
DNA contains uracil
d)
RNA contains deoxyribose
34.

Transcribe the following DNA sequence into RNA:


AAT TAG GGC TCG

a)

AAT TAG GGC TCG

b)

TTA ATC CCG AGC

c)

UUA AUC CCG AGC

d)

TTU UTC CCG UGC

35.
How many amino acids are coded for by this sequence of nucleotides:
ATG GGA ACT CCA
a)
4
b)
2
c)
6
d)
12
36.
This organic molecule is the main component of biological membranes.....
a)
carbohydrates
b)
lipids 
c)
proteins 
d)
nucleic acids
37.
Which symbiotic relationship is described by one individual benefiting and the other being neither harmed nor benefited?
a)
Mutualism
b)
Commensalism
c)
Parasitism
d)
Competition
38.

The cell membrane main purpose is...

a)

Selective Permeability

b)

Energy Production

c)

Locomotive

d)

Looking good

39.

A Eukaryotic cell is...

a)

Cell that has no membrane.

b)

Cell with no membrane-bound organelles.

c)

A cell containing a nucleus and other membrane-bound organelles.

d)

A cell containing a nucleus and other nucleus-bound organelle.

40.
Which RNA bases would pair with TACGAA in transcription? 
a)
AUGCUU
b)
ATGCTT
c)
GCATCC
d)
GCAUCC
41.

Where does transcription take place in EUKARYOTIC cells?

a)

nucleus

b)

cytoplasm

c)

ribosome

42.

A prokaryotic cell is...

a)

Cells that don't contain a nucleus but do contain other membrane-bound organelles.

b)

Cells that contain a nucleus but no other membrane-bound organelles.

c)

Cells that contain a nucleus and other membrane-bound organelles.

d)

Cells that don't contain a nucleus or any other membrane-bound organelles.

43.

Which process is used to make mRNA from the DNA in the nucleus?

a)

transcription

b)

translation

c)

replication

44.

The cell theory is...

a)

All living organisms are composed of at least one cell.

b)

building blocks of life. All cells come from

c)

All of the above

d)

Cells arise only from previously existing cells.

45.

The cell theory is...

a)

All living organisms are composed of at least one cell.

b)

building blocks of life. All cells come from

c)

All of the above

d)

Cells arise only from previously existing cells.

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