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unit 2 7th grade

Total questions: 58

Worksheet time: 45mins

Name
Class
Date
1.

The cell is considered the basic unit of life. The Cell Theory was developed over time using contributions of several scientists working in different fields. Which of the following is NOT part of the Cell Theory?

a)

All cells contain a nucleus.

b)

The cell is the basic unit of life.

c)

All organisms are composed of cells.

d)

All cells come from preexisting cells.

2.

The cell theory took hundreds of years to develop. The scientists over the years added their discoveries to the theory when they were able to scientifically prove their ideas. What aided in the development of the discoveries over the years?

a)

The organisms were able to grow larger after several decades, which allowed the scientists to see them clearer.

b)

The continued development of the microscope helped the scientists to see smaller organisms and their cellular structures.

c)

The scientists were able to think for themselves as time went on.

d)

The development of eyeglasses that were used helped scientists to look deeper into cell structures.

3.

All living things are composed of cells.

a)

True

b)

False

4.
What is diffusion?
a)
when molecules move 
b)
when molecules move from a high concentration to a low.
c)
no movement 
d)
molecules move everywhere
5.
The picture below is an example of _________________.
a)
osmosis
b)
isotonic
c)
diffusion
d)
active transport
6.
Osmosis is the movement of _____ across a membrane.
a)
food
b)
energy
c)
oxygen
d)
water
7.
When both inside and outside of a cell have the same amount of water it is said that the cell has reached a state of
a)
Osmosis
b)
Diffusion
c)
Equilibrium
8.
During osmosis
a)
water moves from high to low concentration
b)
large or oddly shaped molecules move across a cell membrane
c)
water moves when energy is used
d)
proteins are built
9.
A person would never have pure water put into their veins in a hospital because their cells would...
a)
Shrink/Dehydrate
b)
Expand
10.

What is DIFFUSION?

a)
b)
c)
d)
11.

What happened to the CELL WALL and the CELL MEMBRANE in these plant cells?

a)

Both the CELL WALL and CELL MEMBRANE shrunk

b)

Only the CELL WALL shrunk, the CELL MEMBRANE stayed the same

c)

The CELL WALL stayed the same, only the CELL MEMBRANE shrunk

d)

Both the CELL WALL and CELL MEMBRANE stayed the same

12.

Diffusion & Facilitated Diffusion are both __________ transport.

a)

Passive

b)

Active

c)

Easy

d)

Free

13.

The general name for movement of substances across cell membranes WITHOUT the need of energy input

a)

passive transport

b)

active transport

14.

What is the movement of particles with the concentration gradient using protein "helpers"?

a)

diffusion

b)

facilitated diffusion

c)

active transport

d)

enzymatic reactions

15.
What is the definition of  Selective Permeability?
a)
The movement of materials across the cell membrane that requires NO ENERGY from the cell.
b)
The movement of materials through (or across) the cell membrane
c)
The ability of the cell membrane to allow some things to pass through while preventing other things from passing through.
d)
The movement of molecules from an area of high concentration to a area of low concentration 
16.
Which way will the water molecules move during osmosis?
a)
Out of the cell, so the cell shrinks.
b)
Out of the cell, so the cell swells.
c)
Into the cell, so the cell shrinks.
d)
Into the cell, so the cell swells.
17.
_______ regulates what enters and leaves a cell.  
a)
Cell Membrane
b)
Nucleus
c)
Mitochondria
d)
Cytoplasm
18.

The arrow is showing the fluid inside the cell that surrounds the cell organelles. What is the arrow pointing to in the cell?

a)

cytoplasm

b)

mitochondria

c)

ribosomes

d)

nucleus

19.

Cellular respiration is...

a)

the process by which cells obtain energy from glucose

b)

process by which organisms absorb energy from the sun

c)

the process by which cells divide

d)

the process by which cells process carbon dioxide

20.

What is the purpose of cellular respiration?

a)

to get rid of carbon dioxide

b)

to take in oxygen

c)

to take in sugar

d)

to break down food to create energy

21.

Which of these is the correct formula for cellular respiration?

a)

oxygen + carbon = energy + glucose

b)

glucose + carbon dioxide = water + oxygen

c)

glucose + oxygen = carbon dioxide + water + energy

d)

carbon dioxide + water + energy = glucose + oxygen

22.

Cellular respiration takes place in the ...

a)

mitochondria

b)

chloroplast

c)

chlorophyll

d)

lungs

23.

How is cellular respiration different from photosynthesis?

a)

Photosynthesis produces ATP, cellular respiration produces sugars

b)

photosynthesis requires oxygen, cellular respiration requires oxygen

c)

photosynthesis produces oxygen, cellular respiration produces carbon dioxide

d)

photosynthesis requires energy from food, cellular respiration requires energy from the sun

24.

Autotrophs capture the sun's energy using...

a)

cellular respiration

b)

mitochondria

c)

chlorophyll

d)

glucose

25.

Both autotrophs & heterotrophs break down glucose to release _____ energy.

a)

CSI

b)

ATP

c)

HCl

d)

H2O

26.

The products of photosynthesis serve as the reactants in cellular respiration to provide chemical energy.

a)

True

b)

False

27.

The products of photosynthesis combine with the reactants in cellular respiration to remove (ATP) chemical energy from cells.

a)

True

b)

False

28.

The products of photosynthesis inhibit the reactants in cellular respiration in the presence of light.

a)

True

b)

False

29.

What is the one main difference between fermentation & cellular respiration?

a)

Fermentation does not occur in animals, while cellular respiration does

b)

fermentation does not require oxygen, cellular respiration does

c)

fermentation does not release energy, cellular respiration does

d)

fermentation does not depend on the sun, cellular respiration does

30.

Photosynthesis releases energy, while respiration stores energy.

a)

True

b)

False

31.

Both photosynthesis & respiration require sunlight.

a)

True

b)

False

32.

Photosynthesis, the process that plants undergo to make glucose, takes place in the...

a)

mitochondria

b)

cell wall

c)

chloroplast

d)

stomata

33.

Cells of organism must replicate for ?

a)

growth

b)

repair of damaged tissue

c)

replacement of dying cells.

d)

All of the above

34.

What does DNA Replication mean?

a)

DNA is made.

b)

DNA makes new cells.

c)

DNA copies itself.

d)

DNA starts the cell cycle.

35.

In what phase do the chromosomes line up in the middle of the cell?

a)

Cytokinesis

b)

Metaphase

c)

Prophase

d)

Telophase

36.

In what phase do the chromosomes get pulled apart into sister chromatid to opposite sides of the cell?

a)

Prophase

b)

Interphase

c)

Metaphase

d)

Anaphase

37.

What part of the cell cycle results in the splitting into two new cells?

a)

Interphase

b)

Mitosis

c)

Metaphase

d)

Cytokinesis

38.

Which part of the Cell Cycle takes the longest?

a)

Interphase

b)

Mitosis

c)

Prophase

d)

Cytokinesis

39.

Which of these lists presents the stages of the cell cycle in the correct order?

a)

interphase, mitosis, cytokinesis

b)

cytokinesis, mitosis, interphase

c)

mitosis, interphase, cytokinesis

d)

interphase, cytokinesis, mitosis

40.
The division of the nucleus is known as:
a)
Synthesis
b)
Mitosis
c)
G1
d)
G2
41.
The ___________ holds the replicated sister chromatids together.
a)
centriole
b)
chromosomes
c)
centromere
d)
cycles
42.
The cell spends most of it's life in ________________.
a)
mitosis
b)
cytokinesis
c)
Interphase
d)
None of the above
43.
The structures labeled B are
a)
centrioles
b)
chromatids
c)
centromeres
d)
chromopheres
44.
Put the following stages of mitosis in order: anaphase, prophase, metaphase, and telophase. 
a)
prophase, metaphase, telophase, anaphase
b)
prophase, anaphase, metaphase, telophase
c)
prophase, metaphase, anaphase, telophase
d)
prophase, telophase, metaphase, anaphase
45.
In what organelle is the genetic material found inside?
 
a)
Endoplasmic Reticulum
b)
Golgi Complex
c)
Nucleolus
d)
Nucleus
46.
Identify the Cell Cycle Stage.
a)
Prophase
b)
Interphase
c)
Anaphase
d)
Telophase
47.
Identify the Cell Cycle Stage.
a)
Anaphase
b)
Cytokinesis
c)
Telophase
d)
Metaphase
48.
Identify the Cell Cycle Stage.
a)
Cytokinesis
b)
Interphase
c)
Anaphase
d)
Metaphase
49.
Identify the Cell Cycle Stage.
a)
Interphase
b)
Anaphase
c)
Telophase
d)
Prophase
50.

Which part of the cell cycle is divided into prophase, metaphase, anaphase, and telophase?

a)

interphase

b)

mitosis

c)

cytokinesis

51.

Simon looks at an image of a slide and notices that all of the chromosomes are lined up in along the middle of the cell. He is likely looking at a cell that is in

a)

prophase

b)

metaphase

c)

anaphase

d)

telophase

52.

Ramone wants to know: does the distance a person kicks a soccer ball effect how well they will do on their math test. What is the dependent variable?

a)

How far they kick the soccer ball

b)

How well they do on the math test

53.

What happens in metaphase? (choose 1)

a)

DNA splits apart

b)

Cell divides

c)

DNA lines up in middle

d)

New nuclei form

54.

What happens in anaphase? (choose 1)

a)

DNA replicates

b)

Chromatids pull apart to opposite sides

c)

DNA lines up in middle

d)

Cell divides

55.

The end result of mitosis is

a)

4 Identical Cells are produced

b)

4 genetically different cells are produced

c)

2 identical cells are produced

d)

2 genetically different cells are produced

56.

What is the correct order for the phases of mitosis?

a)

Prophase, Anaphase, Telophase, Metaphase

b)

Anaphase, Telophase, Prophase, Metaphase

c)

Telophase, Anaphase, Prophase, Metaphase

d)

Prophase,

Metaphase, Anaphase, Telophase

57.

Timmy fell off his skateboard and scraped his knee. Which cell process is going to be used to heal the wound?

a)

Mitosis

b)

Meiosis

c)

The wound would not heal

d)

Cell diffusion

58.

Which phase does the cell grow and develop?

a)

Prophase

b)

Interphase

c)

Cytokinesis

d)

Metaphase

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