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Biology Midterm Semester 1

Total questions: 52

Worksheet time: 35mins

Name
Class
Date
1.

___________a molecule that is present in all living cells and that contains the information that determines the traits a living thing inherits and needs to live.

a)

Cell

b)

Stimulus

c)

Homeostasis

d)

DNA

2.
When you step out into the cold, your body shivers in order to keep its temperature at 98.6F.
a)
All living things use energy
b)
All living things contain cells
c)
All living things maintain homeostasis
d)
All living things grow
3.
Green plants produce their own food through the process of photosynthesis.
a)
All living things use energy
b)
All living things contain cells
c)
All living things maintain homeostasis
d)
All living things grow
4.
Over three years, Tim's height has increased from 5'4" to 5'11".
a)
All living things contain cells
b)
All living things maintain homeostasis
c)
All living things use energy
d)
All living things grow
5.
YOU are a multi-celled organism but an amoeba is a single celled organism.
a)
All living things have cells
b)
All living things grow
c)
All living things use energy
d)
All living things respond to their environment
6.

Living things are made up of units called

a)

DNA

b)

Cells

c)

Homeostasis

d)

Seeds

7.
In order for something to be considered a living organism, it must display _____ of the eight characteristics of living things.
a)
one
b)
some
c)
all
d)
more than half
8.
Name the levels of organization in the human body in order from smallest to largest:
a)
Tissue, organ, organ system
b)
Organ system, tissue, organs, cells
c)
Cells, tissue, organs, organ system
d)
Cells , organs, tissue, organ system
9.
Homeostasis
a)
allows for a wildly fluctuating internal environment
b)
is impossible in vertebrates
c)

is the maintenance of a relatively stable internal environment

d)

is the maintenance of a relatively stable external environment

10.
The "cause" for something to happen is the
a)
response
b)
effect
c)
stimulus
d)
homeostasis
11.
Homeostasis in the human body is often maintained by a: 
a)

the brain only

b)
solar feedback loop
c)

the muscles

d)
negative feedback loop
12.

When you are hungry, you eat.

What is the response?

a)

hunger

b)

eating

c)

stomach

d)

nerves

13.

The group of organisms that use the process of homeostasis includes

a)

mammals, only

b)

animals, only

c)

plants and animals

d)

all living things

14.
Negative Feedback Loops:
a)
amplify processes
b)
prevent small changes from getting larger
c)
are initiated during childbirth
d)
are found only in plants
15.

Which of the following is an example of positive feedback?

a)

Thermoregulation

b)

Blood Pressure

c)

Childbirth

d)

Blood Sugar Levels

16.
When you get cut, your skin cells release hormones that signal platelets to come and stop the bleeding. Platelets then release more hormones that signal even more platelets to help stop bleeding. The hormone signals continue until the cut is closed.
a)
Positive Feedback Response
b)
Negative Feedback Loop 
17.

A thermostat in a central heating system can determine the temperature of your living room. It switches the air conditioner on when the temperature increases to a predetermined level and shuts it off when it cools to another level. The room temperature remains within a comfortable level regardless of the temperature outside.

a)

Positive Feedback Loop

b)

Negative Feedback Loop

18.

Organisms whose cells do not have a nucleus are called

a)

Eukaryotes

b)

Multicellular

c)

Prokaryotes

d)

Unicellular

19.

An organism made of only one cell is called

a)

Eukaryotes

b)

Monocellular

c)

multicellular

d)

Unicellular

20.

The ____________is a densely packed area in a cell that contains genetic material-DNA- for controlling the cell's activities.

a)

Chloroplast

b)

Nucleus

c)

Mitochondria

d)

Vacuole

21.

Organisms with cells that have a nucleus are called

a)

Archaea

b)

Bacteria

c)

Eukaryotes

d)

Prokaryotes

22.

The basic unit of structure and function in an organism is the

a)

cell

b)

chloroplast

c)

lysosome

d)

unicellular

23.

A _____________ organism is made of many cells, each specialized to do certain jobs.

a)

Eukaryotic

b)

multicellular

c)

Prokaryotic

d)

Unicellular

24.

This outermost layer protects and supports the cells of plants and some other organisms.

a)

cell membrane

b)

cell wall

c)

cytoplasm

d)

Golgi apparatus

25.

This structure surrounds the cytoplasm of all cells and controls what enters and leaves the cell.

a)

Cell Membrane

b)

cellophane

c)

Cell Wall

d)

cellulose

26.

This fluid in the cell is where the organelles are found. It contains water and chemicals the cell needs.

a)

Blood

b)

Cytoplasm

c)

Plasma

d)

Vacuole

27.

These organelles convert the energy in food molecules to a form the cell can use.

a)

Chloroplasts

b)

Mitochondria

c)

Lysosomes

d)

Ribosomes

28.

These tiny cell structures assemble protein molecules from amino acids. Usually referred to as the protein factory.

a)

Carbohydrates

b)

Lipids

c)

Nucleic Acids

d)

Ribosomes

29.

These organelles in plants capture light energy and store it in glucose molecules to be used as food.

a)

Chloroplasts

b)

Mitochondria

c)

Endoplasmic Reticulum

d)

Vacuoles

30.

Tiny structures found within a cell that allow it to function.

a)

Organs

b)

Systems

c)

Parts

d)

Organelles

31.

This organelle is the pathway that proteins travel through to various other parts of the cell. An analogy may refer to it as roads or highways.

a)

Cytoplasm

b)

Endoplasmic Reticulum

c)

Golgi Bodies

d)

Cell Wall

32.

This organelle repackages proteins into smaller amounts to be sent to various places throughout the cell. An analogy would be to compare it to a post office or a UPS store.

a)

Golgi Bodies

b)

Endoplasmic Reticulum

c)

Ribosomes

d)

Nucleus

33.

This organelle is a storage compartment that holds water, some food, and waste. A plant cell has only one or two large ones, while an animal cell has many small ones.

a)

Ribosomes

b)

Nucleus

c)

Lysosomes

d)

Vacuoles

34.

This organelle breaks down dead and damaged parts of the cell and disposes of them. It can be referred to as the cleanup crew.

a)

Chromosomes

b)

golgi Bodies

c)

Ribosomes

d)

Lysosomes

35.

All of the following can be found in an animal cell except (choose the one that does not belong).

a)

Endoplasmic Reticulum

b)

Ribosomes

c)

Chloroplast

d)

Cytoplasm

36.

Diffusion is a form of __________ transport.

a)

Passive

b)

Active

c)

Easy

d)

Free

37.

Passive Transport uses ____ energy

a)

no

b)

a lot of

c)

a little bit of

d)

some

38.

_____________ is the free movement of particles across the membrane with the concentration gradient

a)

diffusion

b)

facilitated diffusion

c)

active transport

d)

fusion

39.

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

a)

diffusion

b)

facilitated diffusion

c)

active transport

d)

enzymatic reactions

40.
Osmosis is the movement of _____ across a membrane.
a)
food
b)
energy
c)
oxygen
d)
water
41.

Some cells move large particles out of the cell through the process of:

a)

Protein Synthesis

b)

Endocytosis

c)

Exocytosis

d)

Cytoplasmic Streaming

42.
In this image, the cell is using which type of molecular transport?
a)
Osmosis
b)
Diffusion 
c)
Endocytosis
d)
Exocytosis 
43.
What forms the channels and pumps in the phospholipid bilayer?
a)
carbohydrates
b)
proteins
c)
hydrophilic heads 
d)
lipids
44.

This image is a model of-

a)

Flagella

b)

Nucleus

c)

Endoplasmic Reticulum

d)

Cell Membrane

45.

 

What does "bilayer" mean?

a)

one layer

b)

two layers

c)

virus

d)

antibiotic

46.

Most of the cell membrane is made of...

a)

Nucleic acids

b)

Proteins

c)

Lipids

d)

Carbohydrates

47.

What is the movement of small particles across a selectively permeable membrane like the cell membrane until equilibrium is reached? 

a)

Diffusion

b)

Osmosis

c)

Facilitated Diffusion

d)

Ion Channel

48.

Which process moves molecules from low to high concentration?

a)

Diffusion

b)

Osmosis

c)

Facilitated diffusion

d)

Active transport

49.

What type of active transport does food move into the cell?

a)

Endocytosis

b)

Exocytosis

c)

Sodium Potassium Pump

d)

Diffusion

50.

Active transport requires

a)

A concentration gradient

b)

Osmosis

c)

Energy

d)

Hypertonic solution

51.

What is the job of the cell membrane?

a)

Make proteins

b)

Fold proteins

c)

Direct cell's activities

d)

Allow things in and out of the cell

52.

What type of transport is occurring in the diagram?

a)

diffusion

b)

facilitated diffusion

c)

active transport

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