Semester 1 Test Review (2 Of 3)

30 Questions | By JLovrien | Updated: Mar 20, 2022 | Attempts: 280

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1.

A scientist plants two rows of corn for experimentation. She puts fertilizer on row 1 but does not put fertilizer on row 2. Both rows receive the same amount of water and light intensity. She checks the growth of the corn over the course of 5 months. What is one controlled variable in this experiment?
- A.
  
  Amount of fertlizer given to experimental group
- B.
  
  Growth of corn
- C.
  
  Type of fertilizer
2.

Which sentence best describes the importance of using a control group?
- A.
  
  When you use a control group you don't need a large sample size.
- B.
  
  When you have a control group you don't have to do any calculations.
- C.
  
  Control groups allow you to compare those recieving the variable and those that are not.
3.

What does Abiotic Factor mean?
- A.
  
  All the living parts of an ecosystem.
- B.
  
  All the consumers of an ecosystem.
- C.
  
  All the nonliving parts of an ecosystem.
4.

An example of a consumer in a pond ecosystem is:
- A.
  
  Water lily
- B.
  
  Algae
- C.
  
  Reed
- D.
  
  Frog
5.

In an energy pyramid, the lowest level has:
- A.
  
  Less energy than the top level
- B.
  
  Less energy than the second level
- C.
  
  More energy than the top level
- D.
  
  The same amount of energy is available to a consumer
6.

An animal that eats only plants is a :
- A.
  
  Primary consumer
- B.
  
  Secondary consumer
- C.
  
  Teritary consumer
- D.
  
  Primiary producer
7.

What is, in plants, the rigid barrier that surrounds the outside of the plasma membrane, is made of cellulose, and provides support and structure to the cell?
- A.
  
  Flagellum
- B.
  
  Cell wall
- C.
  
  Centriole
- D.
  
  Nucleolus
8.

What is the membrane-bound vesicle for temporary storage of materials such as food, enzymes, and wastes?
- A.
  
  Vacuole
- B.
  
  Golgi apparatus
- C.
  
  Cytoskeleton
- D.
  
  Ribosome
9.

What is, in eukaryotic cells, the central, membrane-bound organelle that manages cellular functions and contains DNA?
- A.
  
  Ribosome
- B.
  
  Chloroplast
- C.
  
  Ribosome
- D.
  
  Nucleus
10.

What is a double-membrane organelle that captures light energy and converts it to chemical energy through photosynthesis
- A.
  
  Nucleolus
- B.
  
  Mitochondria
- C.
  
  Chloroplast
- D.
  
  Ribosome
11.

What is a simple cell organelle that helps manufacture proteins?
- A.
  
  Cell
- B.
  
  Ribosome
- C.
  
  Lysosome
- D.
  
  Mitochondria
12.

The water molecule is _________, because there is an uneven distribution of electron within the molecule.
- A.
  
  Uneven
- B.
  
  Weird
- C.
  
  Polar
- D.
  
  Strange
13.

A pure substance made up of only one kind of atom
- A.
  
  Molecule
- B.
  
  Compound
- C.
  
  Element
- D.
  
  Isotope
14.

All of these are major organic compounds except
- A.
  
  Carbohydrates
- B.
  
  Lipids
- C.
  
  Proteins
- D.
  
  Acids
15.

All the above are Inorganic except
- A.
  
  Acids
- B.
  
  Bases
- C.
  
  Salts
- D.
  
  Proteins
16.

Central core of atom
- A.
  
  Nucleus
- B.
  
  Neutron
- C.
  
  Proton
- D.
  
  Atomic Mass
17.

Fats and oils
- A.
  
  Phospholipids
- B.
  
  Lipids
- C.
  
  Energy
- D.
  
  Glycerol
18.

Number of protons and neutrons in the nucleus
- A.
  
  Chemical elements
- B.
  
  Nucleic acid
- C.
  
  Protein
- D.
  
  Atomic mass
19.

A pH less than 7 is a
- A.
  
  Acid
- B.
  
  Base
- C.
  
  Neutral
- D.
  
  Chemical
20.

Water is made of 1 oxygen molecule and _____ hydrogen atoms.
- A.
  
  3
- B.
  
  2
- C.
  
  1
- D.
  
  5
21.

The main pigment in leaves i
- A.
  
  Chlorophyll
- B.
  
  Chloroplasts
- C.
  
  Plastids
- D.
  
  Carotonoid
22.

The main products of photosynthesis are:
- A.
  
  Glucose and water
- B.
  
  Water and carbon dioxide
- C.
  
  ATP and NADPH
- D.
  
  Glucose and oxygen
- E.
  
  Oxygen and water
23.

What gas is given off by plants?
- A.
  
  Carbon Dioxide
- B.
  
  Oxygen
- C.
  
  Nitrogen
- D.
  
  Hydrogen
24.

Green plants make their own food through a process known as...
- A.
  
  Electrolysis
- B.
  
  Chemical Properties
- C.
  
  Preparation
- D.
  
  Photosynthesis
25.

The tiny openings on the underside of the leaf that help the plant take in carbon dioxide are called...
- A.
  
  Stomata
- B.
  
  Xylem
- C.
  
  Phloem
- D.
  
  Chlorophyll