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Biology 1st Semester Review

Total questions: 55

Worksheet time: 34mins

Name
Class
Date
1.

What do both prokaryotic and eukaryotic cells contain?

a)

membrane-bound organelles

b)

linear chromosomes

c)

cytoplasm

d)

a nucleus

2.

Which molecules are joined together to make proteins?

a)

fatty acids

b)

nucleic acids

c)

amino acids

d)

acetic acids

3.

Match the organelle to its description.

a)

Proteins are made on these small structures.

1.

Ribosomes

b)

Controls all activity in the cell (the brain) and stores DNA

2.

Nucleus

c)

The fluid that fills the cell and

keeps the organelles in place

3.

Cytoplasm

d)

Power plant of the cell. They

create energy called ATP.

4.

Mitochondrian

e)

Outer lining the cells.

Controls what goes

in and out.

5.

Cell Membrane

4.
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
5.
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
6.
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
7.
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
8.
What is the function of a cell wall?
a)
to protect and support the cell
b)
to perform different functions in each cell
c)
to prevent water from passing through it
d)
to prevent oxygen from entering the cell
9.
In what part of the plant cell does the process of photosynthesis take place?
a)
nucleus
b)
mitochondria
c)
chloroplasts
d)
vacuoles
10.
To convert the energy of glucose into  the  usable form of ATP is a function of _________.
a)
Cell Wall
b)
Cytoplasm
c)
Nucleus
d)
Mitochondria
11.
What is the main function of chloroplast?
a)
Mitosis
b)
Meiosis
c)
Translation
d)
Photosynthesis
12.

Plant cells are able to produce their own food. This process happens in which structure?

a)

cell wall

b)

chloroplast

c)

mitochondrion

d)

vacuole

13.

These diagrams show a variety of cells from the same organism. How can cells from the same organism have such different shapes and functions?

a)

As each cell differentiates, the DNA changes so that each type of cell has different DNA once it reaches maturity.

b)

Mutations in the cells' nuclei lead to new combinations of DNA, resulting in different shapes and functions in the different types of cells.

c)

During differentiation, different parts of the DNA in each type of cell are activated, resulting in the different structure and function of the cells.

d)

During differentiation, different types of cells produce proteins which destroy the nonactive DNA, leading to cell specialization.

14.

Which statement best explains why animals are considered heterotrophic?

a)

They are able to produce food through the process of photosynthesis.

b)

They are able to produce food through the process of respiration.

c)

They are able to obtain nutrients by decomposing plant and animal tissue.

d)

They are able to obtain nutrients by consuming other organisms or their products.

15.

Which word equation best represents the process of cellular respiration?

a)

carbon dioxide + glucose --> oxygen + water

b)

carbon dioxide + water --> glucose + oxygen

c)

glucose + oxygen ---> carbon dioxide + water

d)

oxygen + water ---> carbon dioxide + glucose

16.

Which best explains why the rate of a biochemical reaction decreases at high temperatures?

a)

The activation energy increases.

b)

The shape of the enzyme changes.

c)

The enzyme-substrate complex forms.

d)

The bonds between substrates are broken.

17.

A contractile vacuole helps protists eliminate excess liquid. This is a "pumping" process which reduces pressure inside the cell and prevents the cell from bursting. What is most likely the source of energy for this process?

a)

DNA

b)

lipids

c)

ATP

d)

ribosomes

18.

Which molecules are joined together to make proteins?

a)

fatty acids

b)

nucleic acids

c)

amino acids

d)

acetic acids

19.
Enzymes are proteins that help increase the rate of chemical reactions inside cells. These proteins are composed of many simpler molecules called amino acids. Which of the following suggests that the shape of an enzyme determines the enzyme’s function?
a)
Enzymes are specific to a substrate
b)
 Enzymes can operate in a wide range of conditions.
c)
Enzymes are activated by neighboring molecules.
d)
Enzymes can be found in all life-forms.
20.

Which of the following is permitted in the lab?

a)

chewing gum

b)

eating

c)

drinking

d)

none of these

21.

Horseplay, practical jokes, or pranks in the classrooms are

a)

always against the rules

b)

okay

c)

not dangerous

d)

okay if you are working alone

22.

 A testable statement that leads to scientific investigation based on prior knowledge is known as: 

a)

theory

b)

experiment

c)

observation

d)

hypothesis

23.

What would the INDEPENDENT variable be in an experiment testing which types of paper airplane goes the furthest?

a)

the height of the plane's flight path

b)

the type of paper airplane

c)

the distance of each plane's flight

d)

the flight pattern of each plane when thrown

24.

What makes up cell membranes, waxy coverings, and is secondary energy storage?

a)

Carbohydrates

b)

Proteins

c)

Nucleic acids

d)

Lipids

25.

Which of the following are the main source of energy?

a)

Carbohydrates

b)

Lipids

c)

Proteins

d)

Nucleic acids

26.

What happens to an enzyme if the pH or temperature is too high?

a)

Nothing happens

b)

The enzyme changes shape

c)

The enzyme works faster

d)

More product is made

27.

What are the reactants of photosynthesis?

a)

carbon dioxide and oxygen

b)

water and oxygen

c)

carbon dioxide and water

d)

water and glucose

28.

Which type of cell is shown in the picture?

(a)  

29.

When placed in a hypertonic solution, a cell will

a)

Diffuse

b)

Shrink

c)

Swell

d)

Stay the same

30.

In what type of cell would you find a chloroplast?

a)

Prokaryotic

b)

Animal

c)

Plant

d)

Fungus

31.

Eukaryotic cells

a)

Have a nucleus and organelles

b)

Do not have a nucleus and organelles

c)

Divide very quickly

d)

Make up only single celled organisms

32.

Facilitated diffusion is a type of active transport.

a)

True

b)

False

33.

Cell theory states that

a)

Organisms are the basic unit of life

b)

Both cells and organisms are the basic units of life

c)

The questions of the basic unit of life are too abstract to answer

d)

None of the above

34.

Plants have a large ______________ for storing water.

a)

mitochondria

b)

nucleus

c)

vacuole

d)

golgi body

35.
Which is true of prokaryotic and eukaryotic cells?
a)
Prokaryotic cells are larger than eukaryotic cells.
b)
Eukaryotic cells do not have nucleus, and prokaryotic cells do have nuclei.
c)
Prokaryotic cells lack membrane-bound organelles, and eukaryotic cells contain membrane-bound organelles.
d)
Eukaryotic cells are simpler than prokaryotic cells.
36.
What do all of these organisms have in common?
a)
They all have uniform offspring
b)
They are all made of cells
c)
They possess the same features
d)
They have the same internal and external structures
37.
The levels of organization from the simplest to the most complex are
a)
Cells, tissues, organs, organ systems, organism
b)
Organisms, organs, tissues, cells, organ systems
c)
Cells, organs, organ systems, tissues, organism
d)
Tissues, cells, organs, organism
38.
Controls what enters and leaves the cell
a)
Cell Membrane
b)
Ribosome
c)
Chloroplast
d)
Vacuole
39.
Permeable means
a)
things can pass through
b)
the concentration levels are different
c)
it is permanent
d)
things are stuck
40.

If a cell is 30% salt and the solution the cell is in is 10% salt ...

a)

water will move into the cell.

b)

water will move out of the cell.

c)

The cell will shrink.

d)

Water will not move.

41.

This type of solution has a higher amount of solute.

a)

Hypertonic

b)

Hypotonic

c)

Isotonic

d)

Osmotonic

42.

These types of cells do not have a nucleus.

a)

Eukaryotic

b)

Prokaryotic

c)

Plant

d)

Animal

43.

If an organism is found to have ribosomes, this organism ...

a)

could be prokaryotic or eukaryotic.

b)

is definitely prokaryotic.

c)

is definitely eukaryotic.

d)

is not living.

44.

Cells that contain a nucleus and other membrane bound organelles are called:

a)

Prokaryotic

b)

Eukaryotic

c)

Simple

d)

Bacteria

45.
Where do substrates bind on an enzyme?
a)
voltage-gated channels
b)
surface receptor
c)
calcium channels
d)
active site
46.
What is the purpose  of an enzyme?
a)
give permission for the reaction
b)
raise activation energy
c)
speed up reactions
d)
control how many reactions occur
47.
With what 3 letters do enzymes typically end?
a)
-ose
b)
-ase
c)
-ese
d)
-tic
48.
Based on the graph, what is the optimal temperature for this enzyme? 
a)
15oC
b)
40oC
c)
30oC
d)
35oC
49.
What happens when enzymes are heated to a high temperature?
a)
The enzymes die.
b)
The shapes of the enzyme are altered denature
c)
The enzymes' amino acid sequence changes.
d)
The enzymes remain the same
50.
Which of these is most likely an enzyme?  
a)
Sucrose
b)
Galactose
c)
Fructose
d)
Amylase
51.
Letter D...
a)
active site
b)
enzyme
c)
substrate
d)
products
52.
Letter E...
a)
active site
b)
enzyme
c)
substrate
d)
products
53.
An animal cell placed in a sugar solution is shown in the diagram. Which statement best describes how osmosis will affect this animal cell?  
a)
Water will move out of the cell and the cell will shrink
b)
Water will move into the cell and the cell will expand 
c)
Sugar will move out of the cell and the cell will expand 
d)
Sugar will move into the cell and the cell will expand
54.
A cell requires energy to move materials from an area of low concentration, across the cell membrane, to an area of high concentration.  This process is called ___. 
a)
Osmosis
b)
Active transport 
c)
Passive transport 
d)
Facilitative diffusion
55.

The study of life

a)

Biodiversity

b)

Biology

c)

Biomolecules

d)

DOG RACE

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