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living environment midterm review

Total questions: 46

Worksheet time: 23mins

Name
Class
Date
1.

Which organelle is correctly paired with its function?

a)

lysosome - synthesize carbohydrates

b)

mitochondria - synthesize proteins

c)

chloroplast - site for photosynthesis

d)

nucleus - site for cellular respiration

2.

What substance would you predict was added to the cells to cause the change shown?

a)

Distilled Water

b)

Tap Water

c)

Salt Water

d)

Gummy Bears

3.

What is number 1 and what does it do?

a)

ribosome; protein synthesis

b)

ribosome; cellular respiration

c)

mitochondrion; cellular respiration

d)

nucleus; controls cell activities

4.

Which structure is present in plant, but not animal cells?

a)

A

b)

B

c)

E

d)

F

5.

What would you expect to happen if you left this alone for one hour?

a)

Water turns black

b)

Cell shrivels

c)

Cell bursts

d)

Cell turns black

6.

Which of the following is not necessary for photosynthesis to occur?

a)

light energy

b)

Oxygen

c)

Carbon Dioxide

d)

Water

7.

The diagram below represents a biochemical process. Which molecule is represented by X?

a)

DNA

b)

Protein

c)

Starch

d)

ATP

8.

You think adding peanuts to soil makes plants grow taller. What would be the dependent variable?

a)

The group that gets peanuts in the soil

b)

The soil

c)

The height of the plant

d)

The plants are grown in the same size container.

9.
What type of respiration requires oxygen?
a)
Aerobic
b)
Anaerobic
10.
Respiration that does not require Oxygen
a)
Aerobic
b)
Anaerobic
11.
An organism that produces its own food supply from inorganic compounds is called a(an)
a)
heterotroph
b)
consumer
c)
detritivore
d)
autotroph
12.

In a cell, all organelles work together to carry out

a)

Diffusion

b)

Active transport

c)

Information storage

d)

Metabolic processes

13.

Doctors sometimes use a vaccine to prepare the body to defend itself against future infections. These vaccines most often contain

a)

antibodies

b)

antibiotics

c)

white blood cells

d)

weakened pathogens

14.

White blood cells are most closely associated with which two body systems?

a)

circulatory and digestive

b)

immune and circulatory

c)

digestive and excretory

d)

excretory and immune

15.

An ameba is a single-celled organism. It uses its cell membrane to obtain food from its environment, digests the food with the help of organelles called lysosomes, and uses other organelles to process the digested food. From this, we can best infer that

a)

all single-celled organisms have lysosomes to digest food

b)

amebas are capable of digesting any type of food molecule

c)

single-celled organisms are as complex as multicellular organisms

d)

structures in amebas have functions similar to organs in multicellular organisms

16.

Carmine, a compound that comes from the cochineal beetle, shown above, is used as a food coloring.The food coloring is not harmful to most people, but in a small number of individuals, it causes a reaction and affects their ability to breathe. This response to carmine is known as

a)

a stimulus

b)

an allergy

c)

natural selection

d)

an adaptation

17.

The process of transferring energy during respiration occurs in a series of steps. This prevents too much heat from being released at one time. Maintaining an appropriate temperature is beneficial to an organism because

a)

enzymes need a proper range of temperatures to catalyze vital reactions

b)

cellular waste products can only be excreted in cooler temperatures

c)

hormones can only produce antibodies if temperatures are not excessive

d)

nutrients diffuse faster into cells when temperatures are lower

18.

Fruits and vegetables exposed to air begin to brown because of a chemical reaction in their cells. This may result in these foods being thrown out. Some people have found that adding lemon juice (citric acid) to apple slices keeps them from turning brown. The prevention of browning is likely the result of

a)

increasing the concentration of enzymes

b)

increasing the temperature

c)

slowing the rate of enzyme action

d)

maintaining the pH

19.

The role of antibodies in the human body is to

a)

stimulate pathogen reproduction to produce additional white blood cells

b)

increase the production of guard cells to defend against pathogens

c)

promote the production of antigens to stimulate an immune response

d)

recognize foreign antigens and mark them for destruction

20.
Disease-causing microorganism, such as a bacterium or virus.
a)
pathogen 
b)
allergen
c)
prion 
d)
antigen 
21.
This part of the experiment serves as a basis of comparison; the one variable being tested has been omitted. 
a)
experimental group
b)
control group
c)
data
d)
variables
22.
Antibiotics are used to treat
a)
viruses
b)
bacteria
c)
both viruses and bacteria
d)
fungal infections, only
23.
Which substance is an organic molecule?
a)
water
b)
oxygen
c)
starch
24.
Which substance is an organic molecule?
a)
water
b)
oxygen
c)
starch
25.
Students in a science class took their pulse rates before and after they ran in place for one minute. The class data showed that pulse rates increased with exercise. A graph of the data would look most like (SEE DIAGRAM)
a)
1
b)
2
c)
3
d)
4
26.

An organic compound made of amino acids.

a)

protein

b)

carbohydrate

c)

nucleic acid

d)

lipid

27.

The cells of the blood that contain the red pigment hemoglobin which aids in the transport of oxygen

a)

red blood cells

b)

white blood cells

c)

platelets

d)

plasma

28.

The movement of molecules from an area of high

concentration to an area of low concentration without

the use of energy

a)

diffusion

b)

active transport

c)

photosynthesis

d)

mitosis

29.

Which process must first take place in order for the proteins in foods to be used by body cells?

a)

digestion

b)

storage

c)

synthesis

d)

excretion

30.
 The first successful transplant of insulin producing cells from a living donor pancreas was completed in April 2000 in Japan. This enabled the body of the recipient to
a)
regulate fat concentration by a feedback mechanism
b)
provide protection against an infectious disease
c)
 slow down the heart rate after a period of activity ends
d)
 maintain blood sugar levels throughout the day
31.
A 6-year-old child ate a peanut butter sandwich at snack time in school. Five minutes later, her throat became swollen and she collapsed. This allergic reaction occurred because her body
a)
 recognized an antigen in peanut butter and produced antibiotics against it
b)
 digested the white blood cells that can recognize an antigen in peanut butter
c)
 did not recognize an antigen in peanut butter and could not produce antibodies against it
d)
 recognized an antigen in peanut butter and produced an immune response
32.
Cell membranes are said to be selectively permeable. Which statement best explains what selectively permeable means?
a)
The cell membrane prevents any harmful substance from entering the cell.
b)
The cell membrane lets certain substances enter the cell and keeps certain substances out of the cell.
c)
The cell membrane allows only large molecules to diffuse into the cell.
d)
The cell membrane has pores that let only water and glucose into the cell and carbon dioxide out.
33.
A test is set up to test which brand of soda creates the biggest foam explosion when adding a Mentos candy.  Three different sodas were tested. They measured the height of the foam eruption.   What is the dependent variable?
a)
Brand of soda
b)
Number of mentos candies used
c)
Height of foam eruption
d)
Temperature of soda
34.

A possible explanation for why something happens is called ___.

a)

a variable

b)

an experiment

c)

a hypothesis

d)

an assumption

35.
Amino Acids:
a)
are a type of marinade.
b)
help transport fats in the body.
c)
are the building blocks from which proteins are made.
d)
are only found in plants.
36.
Which diagram represents an organ?
a)
#1
b)
#2
c)
#3
d)
#4
37.

Which body system controls the body to maintain homeostasis?

a)

excretory

b)

nervous

c)

circulatory

d)

skeletal

38.

What is the key function of the respiratory system?

a)

digestion of food

b)

allows movement

c)

exchanges gases

d)

processes energy

39.

Uses chlorophyll to produce oxygen and glucose

a)

Chlorofasts

b)

Mitochondria

c)

Ribosome

d)

Chloroplasts

40.
Regulates the amount of light on the specimen
a)
Diaphragm
b)
Aperature
c)
Ocular Lens
d)
Objective Lenses
41.
What will be the total magnification if the ocular lens is 10X and the objective lens is 40X?
a)
40X
b)
10X
c)
100X
d)
400X
42.
Identify this structure.
a)
cell wall
b)
cell membrane
c)
sap vacuole
d)
cytoplasm
43.
Which organelle, in both plants and animals,  converts the energy in food into energy for the cell (cellular respiration)?
a)
Ribosomes
b)
Nucleolus
c)
Mitochondria
d)
Golgi Body
44.
Fats are considered to be which of the following?
a)
Lipids
b)
Carbohydrates
c)
Proteins
d)
Nucleic Acids
45.
Letter B is the:
a)
active site
b)
enzyme
c)
substrate
d)
products
46.
The picture below is an example of _________________.
a)
osmosis
b)
isotonic
c)
diffusion
d)
active transport

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