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DNA, Systems

Total questions: 20

Worksheet time: 11mins

Name
Class
Date
1.

Atom → molecule → organelle → cell→ tissue → organ

→ system → organism

→ population → community

→ ecosystem → biosphere.

a)

Taxonomic System

b)

Classification system

c)

Levels of Organization

d)

Periodic Table

2.

The smallest unit that makes up the known elements.

a)

Molecule

b)

Organelle

c)

Cell

d)

Atom

3.

The smallest unit

of a compound consisting of two or more atoms

bonded together.

a)

Organelle

b)

Cell

c)

Molecule

d)

Atom

4.

Structures in a cell that have specialized jobs.

Similar concept to organs for the human body.

a)

Tissue

b)

Molecule

c)

Atom

d)

Organelles

5.

Groups of cells with similar functions.

a)

Organs

b)

Molecules

c)

Tissues

d)

Organelles

6.

Group of tissues with similar functions.

a)

Organelles

b)

Cells

c)

Tissues

d)

Organs

7.

Group of organs with similar functions.

a)

Organism

b)

Cell

c)

Organ

d)

System

8.

Which of the following is a correct base pair in DNA?

a)

A-G

b)

A-C

c)

C-T

d)

T-A

e)

G-T

9.

Replication is the process by which

a)

DNA makes copies of itself

b)

RNA makes copies of itself

c)

DNA makes proteins

d)

The Borg reproduce

10.
The process of DNA replication occurs in which organelle?
a)
Cytoplasm
b)
Ribosome
c)
Nucleus
d)
Mitochondria
11.

What is the backbone of this DNA molecule made of?

a)

sugars

b)

nitrogen bases

c)

sugar and phosphate

d)

sugar and nitrogen bases

12.

The scientific name for the shape of of DNA.

a)

ladder

b)

double helix

c)

spiral

d)

twist

13.

Given the following sequence - ATG CGT GAC GAT

The complimentary sequence would be...

a)

ATG CGT GAC GAT

b)

UAC GCA CUG CUA

c)

TAC GCA CTG CTA

d)

TAC GTC GAT ATG

14.
The main purpose of the ____________ system is to break food particles into pieces that can be used.
a)
circulatory
b)
respiratory
c)
digestive
d)
skeletal
15.
What is responsible for delivering oxygen and removing carbon dioxide from the body?
a)
cell nucleus
b)
excretory system
c)
nervous tissue
d)
respiratory system
16.
The __________ is the main organ of the nervous system.
a)
heart
b)
lungs
c)
brain
d)
skin
17.
___________ are the building blocks of life.
a)
cells
b)
legos
c)
blocks
d)
blood
18.
Which of the following body systems work together for support, protection, and movement?
a)
respiratory and cardiovascular
b)
skeletal and muscular
c)
skeletal and integumentary
d)
digestive and respiratory
19.
What is the main function of the nervous system?
a)
To communicate with the rest of the body
b)
To pump blood
c)
To breathe
d)
To clean the body
20.
How does the circulatory system work with the digestive system?
a)
Blood is used to build muscle strength.
b)
Food is broken down in the bloodstream
c)
Blood carries nutrients throughout the body.
d)
Food waste is filtered by the heart and blood vessels.