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Q1 And Q2 Review
Test Description: Review for marking periods 1 and 2
Instructions: Answer all questions to get your test result.
1) 1. Which organelle is only found in plant cells?
A
nucleus
B
mitochondria
C
cell membrane
D
chloroplast
2) 2. Which of the following is best described as pumping ions against the concentration gradient?
A
protein pumps
B
diffusion
C
osmosis
D
endocytosis
3) 3. Enzymes are made of amino acids. Which macromolecule are enzymes?
A
proteins
B
carbohydrates
C
nucleic acids
D
lipids
4) 4. Potato pieces are placed into a solution. The mass of the pieces are taken and shows that they gained mass. What type of solution were the potato pieces placed in?
A
water
B
hypertonic
C
isotonic
D
hypotonic
5) 5. Which organelle makes proteins?
A
chloroplast
B
mitochondria
C
ribosomes
D
nucleus
6) 6. Which of the following suggests that the shape of an enzyme determines the enzyme’s function (what it does)?
A
Enzymes lower the activation energy.
B
Enzymes are activated by neighboring molecules.
C
Enzymes are specific to a substrate.
D
Enzymes can operate in a wide range of environmental conditions.
7) 7. Why might raising the temperature of an enzyme's environment slow the rate at which the rate occurs?
A
The enzymes work best in higher temperatures.
B
The active site changes shape.
C
It kills the enzymes.
D
The substrate denatures
8) 8. Name the phases of the cell cycle in order.
A
prophase, metaphase, anaphase, and telophase
B
G1, S, and G2
C
interphase, cytokinesis, mitosis
D
interphase, prophase, metaphase, anaphase, telophase, and cytokinesis
9) 9. Which of the following statements best describes the lipid bilayer of a cell membrane?
A
hydrophilic heads face each other while hydrophobic tails face the inside and outside of the cell
B
hydrophilic heads face the outside of the cell while hydrophobic tails face the inside of the cell
C
hydrophilic heads face the inside and outside of the cell while hydrophobic tails face each other
D
Nonpolar molecules are positioned towards the outer edges of the bilayer.
10) 10. Exocytosis is like a(n)
A
a child going down the slide.
B
placing a drop of dye into a cup of water.
C
outgoing international flight.
D
a cruise shipping letting guests into the boat.
*select an answer for all questions
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