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Thanksgiving Homework Assignment

Total questions: 49

Worksheet time: 28mins

Name
Class
Date
1.

Certain seaweeds contain a greater concentration of iodine inside their cells than there is in the seawater surrounding them. The energy required to maintain this concentration difference is most closely associated with the action of

a)

ribosomes

b)

mitochondria

c)

vacuoles

d)

nuclei

2.
In the cells of the human body, oxygen molecules are used directly in a process that
a)
 releases energy
b)
 digests fat
c)
synthesizes carbohydrate molecules
d)
 alters the genetic traits of the cell
3.
Which statement explains the importance of maintaining a constant internal environment to ensure proper enzyme functioning?
a)
 Changes in pH and temperature will cause the enzyme reaction rate to be too fast.
b)
Temperature and pH determine amino acid sequences in enzymes
c)
Changes in pH will change the genetic instructions of enzymes
d)
Increasing the temperature and pH can alter the specific shape of enzymes.
4.
Hospital patients are often given intravenous fluids (IVs) to maintain proper levels of water and salts in the body. Great care is used in preparing these solutions. If a manufacturer accidentally prepared a batch of IV fluid that contained much more than the usual amount of salt, harm to the patient could result. The most likely effect on a patient if this incorrectly prepared IV fluid was used is that
a)
water would move into body cells and cause them to burst
b)
 water would move out of body cells and cause them to dehydrate
c)
 salt and water would both move out of body cells and disrupt homeostasis
d)
salt and water would both move into body cells and preserve homeostasis
5.
This variable in an experiment is the one being deliberately changed by the scientist. 
a)
dependent variable
b)
independent variable
c)
data
d)
control group
6.

Where is DNA stored in a cell?

a)

Nucleus

b)

Cytoplasm

c)

Ribosomes

d)

Vacuole

7.
Which two cell structures work together in the process of protein synthesis?
a)
nucleus and chloroplast
b)
ribosome and vacuole
c)
nucleus and ribosome
d)
mitochondria and cell membrane
8.
A student conducted an original, well-designed experiment, carefully following proper scientific procedure. In order for the conclusions to become generally accepted, the experiment must
a)
(1) contain several experimental variables
b)
(2) be repeated to verify the reliability of the data
c)
(3) support the original hypothesis
d)
(4) be conducted by a scientist
9.
A red onion cell has undergone a change, as represented in the diagram below. This change is most likely due to the cell being placed in
a)
distilled water 
b)
salt water 
c)
light 
d)
darkness
10.
In the diagram below; the dark dots indicate small molecules. These molecules are moving out of the cells as indicated by the arrows. The number of dots inside and outside of the two cells represents the relative concentrations of the molecules inside and outside of the cells. ATP is being used to move the molecules out of the cell by
a)
Cell A 
b)
Cell B 
c)
both Cell A and B
d)
neither Cell A or B
11.
The inability of an organism to produce certain proteins can occur when an organism is lacking an enzyme needed to combine
a)
oxygen molcules
b)
simple sugars
c)
amino acids
d)
biological catalyts
12.

Which sentence represents a hypothesis?

a)

Environmental conditions affect the pollination of plants

b)

Boil 100 milliliters of water, let it cool, and then add 10 seeds to the water.

c)

Is water depth in a lake related to available light in the water?

d)

A lamp, two beakers, and elodea plants are selected for the investigation.

13.

Which life function uses oxygen and glucose to make ATP?

a)

Regulation

b)

Synthesis

c)

Nutrition

d)

Respiration

14.

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

15.
What type of foods do we get energy from?
a)
sugars
b)
carbs
c)
glucose
d)
all of the above
16.

What type of gas is required for photosynthesis?

a)

O2

b)

CO2

17.

What is the energy that is produced through cellular respiration?

a)

CTP

b)

ATP

c)

Light Energy

d)

Glucose

18.
The part of the cell that makes protein.
a)
Vacuoles
b)
Ribosomes
c)
Golgi Apparatus
d)
Cytoplasm
19.
The part of the cell that is used for storage.
a)
Nucleus
b)
Cell Membrane
c)
Mitochondria
d)
Vacuole
20.
Breaks down food  to release energy. Known as the power plant of the cell.
a)
Endoplasmic Reticulum
b)
Mitochondria
c)
Ribosomes
d)
Cell Wall
21.
Uses energy from the sun to make food for the plant.
a)
Cell Wall
b)
Cell Membrane
c)
Chloroplasts
d)
Vacuole
22.
Which organelle is DNA usually found in?
a)
cell membrane
b)
vacuole
c)
chloroplast
d)
nucleus
23.

An organic compound made of amino acids.

a)

protein

b)

carbohydrate

c)

nucleic acid

d)

lipid

24.

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

25.

What organelle is letter A?

a)

Nucleus

b)

Mitochondria

c)

Cytoplasm

d)

Cell membrane

e)

Ribosomes

26.

What organelle is letter A?

a)

Nucleus

b)

Cell membrane

c)

Vacuole

d)

Mitochondria

e)

Ribosomes

27.

What organelle is letter A?

a)

Nucleus

b)

Cell membrane

c)

Vacuole

d)

Mitochondria

e)

Ribosomes

28.

What organelle is letter B?

a)

Nucleus

b)

Mitochondria

c)

Cytoplasm

d)

Cell membrane

e)

Ribosomes

29.

What organelle is letter C?

a)

Nucleus

b)

Mitochondria

c)

Cytoplasm

d)

Cell membrane

e)

Ribosomes

30.

What organelle is letter D?

a)

Nucleus

b)

Mitochondria

c)

Cytoplasm

d)

Cell membrane

e)

Ribosomes

31.

What organelle is letter B?

a)

Nucleus

b)

Cell membrane

c)

Vacuole

d)

Mitochondria

e)

Ribosomes

32.

What organelle is letter C?

a)

Nucleus

b)

Cell membrane

c)

Vacuole

d)

Mitochondria

e)

Ribosomes

33.

What organelle is letter D?

a)

Nucleus

b)

Cell membrane

c)

Vacuole

d)

Mitochondria

e)

Ribosomes

34.

What organelle is letter B?

a)

Nucleus

b)

Cell membrane

c)

Vacuole

d)

Mitochondria

e)

Ribosomes

35.

What organelle is letter C?

a)

Nucleus

b)

Cell membrane

c)

Vacuole

d)

Mitochondria

e)

Ribosomes

36.

What organelle is letter D?

a)

Nucleus

b)

Cell membrane

c)

Vacuole

d)

Mitochondria

e)

Chloroplast

37.

Controls what enters and leaves the cell.

a)

Nucleus

b)

Cell Membrane

c)

Cytoplasm

d)

Mitochondria

e)

Chloroplast

38.

Controls all of the cells activities

a)

Nucleus

b)

Cell Membrane

c)

Cytoplasm

d)

Mitochondria

e)

Chloroplast

39.

Name the organelle in the picture labeled B

a)

Cell Membrane

b)

Vacuole

c)

Cell Wall

d)

Nucleus

40.

Site of cellular respiration where the cell creates energy

a)

Nucleus

b)

Cell Membrane

c)

Cytoplasm

d)

Mitochondria

e)

Chloroplast

41.

Site of Photosynthesis where the cell changes sun energy to food energy

a)

Nucleus

b)

Cell Membrane

c)

Cytoplasm

d)

Mitochondria

e)

Chloroplast

42.

Protects plant cells only. Strong, rigid, and found only in Plant Cells

a)

Nucleus

b)

Cell Membrane

c)

Vacuole

d)

Mitochondria

e)

Cell Wall

43.

Helps cells reproduce by pulling cells apart, found only in animal cells

a)

Nucleus

b)

Cell Membrane

c)

Centrioles

d)

Mitochondria

e)

Cell Wall

44.

Name the organelle in the picture labeled F

a)

Cell Membrane

b)

Vacuole

c)

Cell Wall

d)

Nucleus

e)

Centrioles

45.

Cell membranes are said to be selectively permeable. Which statement best explains what selectively permeable means?

a)

The cell membrane lets certain substances enter the cell and keeps certain substances out of the cell.

b)

The cell membrane prevents any harmful substance from entering the cell

46.

In the diagram of the plasma membrane shown below, which structures are indicated by letters A and B?

a)

A –– proteins; B –– Fats (Lipids)

b)

A –– fats; B –– carbohydrates

c)

A –– cellulose; B –– fats

d)

A –– water; B –– proteins

47.

Which organelle is correctly paired with its function?

a)

nucleus — provides carbohydrates for fermentation

b)

chloroplast — serves as a site for photosynthesis

c)

centriole — synthesizes digestive enzymes

d)

lysosome — packages cellular products

48.

For survival, a hummingbird uses a considerable amount of energy. This energy most directly results from the life activity of

a)

Growth

b)

Regulate

c)

Transport

d)

Synthesis

e)

Respiration

49.

Name the life function. 


Small building blocks are combined into larger molecules!

a)

Excretion

b)

Regulate

c)

Transport

d)

Synthesis

e)

Respiration

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