Download Cell in its Environment - Fort Thomas Independent Schools

Cell in its Environment
1. Why is water important for a cell?
a All proteins require water to function.
c Most chemical reactions in cells require
.
. water.
b Water is the main ingredient in DNA.
d Water is an essential organic compound
.
. for the body.
2. What product of photosynthesis do most living things need to survive?
a water
c chlorophyll
.
.
b oxygen
d carbon dioxide
.
.
3. What are the products of photosynthesis?
a carbon dioxide and water
c oxygen and water
.
.
b oxygen and sugars
d carbon dioxide and sugars
.
.
4. Sugar molecules can combine to form large molecules called
a lipids.
c starches.
.
.
b proteins.
d enzymes.
.
.
5. How does photosynthesis benefit heterotrophs?
a It adds carbon dioxide to the air.
c It creates food that they can eat.
.
.
b It eliminates harmful sugars.
d It creates clean water.
.
.
6. How are photosynthesis and respiration related?
a They both produce oxygen.
c They have opposite equations.
.
.
b They both produce carbon dioxide.
d They have the same equation.
.
.
7. What captures energy from sunlight during photosynthesis?
a chlorophyll and other pigments
c stomata
.
.
b solar cells
d carbohydrates
.
.
8. What happens during photosynthesis?
a The cell uses the energy in sunlight to
c The cell uses oxygen to make food.
. make carbon dioxide.
.
b The cell uses the energy in sunlight to
d The cell uses glucose to make oxygen.
. make food.
.
9. Which term refers to the movement of water molecules through a selectively permeable membrane?
a active transport
c passive transport
.
.
b osmosis
d engulfing
10.
11.
12.
13.
14.
15.
16.
.
.
Which term refers to proteins that speed up chemical reactions in living things?
a carbohydrate
c amino acid
.
.
b enzyme
d nucleic acid
.
.
Which term refers to the movement of molecules from an area of higher concentration to an area of lower
concentration?
a active transport
c concentration
.
.
b collision
d diffusion
.
.
All organic compounds contain the element
a oxygen.
c carbon.
.
.
b nitrogen.
d water.
.
.
Which term refers to the movement of materials through a cell membrane when energy is required?
a passive transport
c osmosis
.
.
b active transport
d diffusion
.
.
What happens during respiration?
a Water and carbon dioxide are converted
c Glucose is broken down, releasing ener. into energy.
. gy.
b Oxygen is released into the air.
d Carbohydrates are released into the
.
. bloodstream.
DNA and RNA are
a lipids.
c amino acids.
.
.
b enzymes.
d nucleic acids.
.
.
Which term refers to the movement of materials through a cell membrane without using energy?
a concentration
c passive transport
.
.
b active transport
d collision
.
.
17. Chloroplasts contain a pigment called ____________________ that captures the energy in light.
18. The diffusion of ____________________ molecules is called osmosis.
19. Sugars and starches are examples of organic compounds known as ____________________.
20. Almost all living things depend on the process of ____________________ to supply them with the energy they
need.
21. Unlike passive transport, active transport requires the cell to use ____________________.
22. Most substances must be dissolved in ____________________ to be used by cells.
23. Oxygen molecules move across cell membranes through a process called ____________________.
24. The energy from glucose is released in the process of ____________________.
25. Plants make their own food using energy that comes from the ____________________.
26. DNA and RNA belong to the group of organic compounds known as ____________________.
Short Answer
27. Explain what would happen if some of the red blood cells were placed in beaker A.
28. Explain what would happen if some of the red blood cells were placed in beaker B.
29. Plasma is the liquid part of blood in which blood cells move. Explain what would happen if some of the red blood
cells were placed in beaker C.
30. Draw a model of Neon:
31. Draw and Label the following:
Isotonic
Hypertonic
Hypotonic
32. How many protons are in Helium? How many electrons are in Nitrogen? How many neutrons are in Lithium?
What is the symbol for Gold?