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Natural Sciences 8

Total questions: 10

Worksheet time: 26mins

Name
Class
Date
1.

What type of cell has a nucleus?

a)

Eukaryotic

b)

Prokaryotic

2.

Directs all cell activities through the DNA located there.

a)

Endomembrane System

b)

Nucleus

c)

Ribosomes

d)

Mitochondria

3.

Helps assemble ribosomes, which are combinations made of protein and RNA (ribonucleic acid ).

a)

nuclear membrane

b)

nuclear pores

c)

nucleoplasm

d)

nucleolus

4.

A double stranded helix that holds the code for all the cells in the body.

a)

RNA

b)

DNA

c)

Chromatin

d)

Nucleus

5.

What is the nucleus?

a)

A part of the cell that tells everything else what to do.

b)

An organ that makes you healthy.

c)

A wall that protects everything in the cell.

6.

Which organism performs all life processes in one cell?

a)

grass

b)

bacteria

c)

mushroom

d)

butterfly

7.

Which best explains why humans are multicellular organisms?

a)

Human cells are too small to function alone.

b)

Human cells join together to form one large cell.

c)

Humans need many cells to carry out life processes.

d)

Humans have many systems that perform the same function.

8.

How are single-celled organisms and multi-celled organisms similar?

a)

Both need food for energy and growth.

b)

Both have a skeletal system for support.

c)

Both require the interaction of many cells to survive.

d)

Both are able to carry out all life functions in only one cell.

9.

How are multi-celled and single-celled organisms different?

a)

Multi-celled organisms need energy to survive, while single-celled organisms need no energy to survive.

b)

Single-celled organisms can be seen without using a microscope, while multi-celled organisms are microscopic.

c)

Multi-celled organisms have large numbers of specialized cells to perform a variety of life functions, while single-celled organisms complete life functions with one cell.

d)

Single-celled organisms have large numbers of identical cells that all perform the same function, while multi-celled organisms have cells that are all different and perform different life functions.

10.

Which is a difference between frogs and bacteria?

a)

Frogs are able to control all life processes in one cell, while bacteria cannot.

b)

Frogs are single-celled organisms, while bacteria are multi-celled organisms

c)

.Frogs are multi-celled organisms, while bacteria are single-celled organisms.

d)

Frogs must rely on other single-celled organisms for survival, while bacteria are dependent only on themselves.