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Cells - 2nd grade

Total questions: 15

Worksheet time: 23mins

Name
Class
Date
1.

What is an organism?

a)

one or more cells, grows, changes, uses energy, responds, and can reproduce.

b)

a living thing

c)

protects the cell from invaders

d)

jelly-like liquid that organelles float in

2.

What are the characteristics of a living thing?

a)

red blood cells, white blood cells, skin cells, bone cells, muscle cells, nerve cells

b)

improved the early microscope, saw bacteria, described bacteria

c)

one or more cells, grows, changes, uses energy, responds, and can reproduce

d)

building blocks of life, smallest part of a living thing

3.

What is a cell?

a)

building block of life, smallest part of a living thing

b)

jelly-like substance that organelles float in

c)

gives instructions to all the organelles

d)

a living thing

4.

What are organelles?

a)

store food for the cell

b)

make energy for the cell

c)

protect the cell from invaders

d)

parts that make up a cell

5.

What is the cell membrane?

a)

makes energy for the cell

b)

gives instructions to the organelles

c)

protects the cell from invaders

d)

parts that make up a cell

6.

What is cytoplasm?

a)

Jelly-like substance that organelles float in

b)

makes energy for the cell

c)

stores food for the cell

d)

gives instructions to the organelles

7.

What are the mitochondria?

a)

parts that make up a cell

b)

protect the cell from invaders

c)

makes energy for the cell

d)

store food for the cell

8.

What are vacuoles?

a)

store food for the cell

b)

give instructions to all the organelles

c)

protect the cell from invaders

d)

makes energy for the cell

9.

What is the nucleus?

a)

parts that make up a cell

b)

protect the cell from invaders

c)

stores food for the cell

d)

gives instructions to the organelles

10.

Why does your body have different kids of cells?

a)

We are made of trillions of cells. Each type of cell performs a unique and special function.

b)

They are organized to keep us alive and healthy.

c)

Cell - bone cell, Tissue - muscle, Orgain - skin, System - brain

d)

To give instructions to the organlles

11.

Give an example of cells, tissues, organs, and systems

a)

red blood cells, white blood cells, skin cells, bone cells, muscle cells, nerve cells

b)

organelles, cell membrane, cytoplasm, mitchondria, vacuoles, nucleus

c)

Cell - bone cell, Tissue - muscle, Orgain - skin, System - brain

d)

one or more cells, grows, changes, uses energy, responds, can reproduce

12.

Give an example of different kinds of cells

a)

respiratory, digestive, nervous

b)

red blood cells, white blood cells, skin cells, bone cells, muscle cells, nerve cells

c)

use energy, one or more cells, grows, changes, responds, can reproduce

d)

protect the cell from invaders

13.

How are cells, tissues, organs, and systems related?

a)

Cells are called building blocks of life because they are basic structural and functional units of our life.

b)

Living things respire, move, respond to stimuli, reproduce and grow, and are dependent on their environment.

c)

There are 200 different types of cells in our body. Each type of cell performs a unique and special function.

d)

Cells make up tissues, tissues make up organs, and organs make up organ systems. They are organized to keep us alive and healthy.

14.

Who was Angon von Leeuwenhoek?

a)

He invented calculus and was Master of the Mint in London.

b)

He improved the early microscope, was the 1st person to see and describe bacteria.

c)

He won a Nobel Prize in Physics for discovery of the photoelectric effect.

d)

He discovered evolution, liked taxidermy. enjoyed unusual food, and suffered from ill health.

15.

Why are cells call the building blocks of life?

a)

Because they are basic structural and functional units of our life.

b)

Because they are typically made of wood or plastic.

c)

Because they are fun to gather friends together and play with.

d)

Because they are shaped like Legos and click together to create animals.