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Ch. 3- Cells and Their Functions

Total questions: 15

Worksheet time: 13mins

Name
Class
Date
1.

The part of the cell that regulates what can enter or leave is the

(a)  

2.

The cytosol and organelles make up the

(a)  

3.

If Solution A has more solute and less water than does Solution B, then Solution A is (a)   to Solution B

4.

Mechanisms that require cellular energy to move substances across the plasma membrane are called (a)   transport mechanisms

5.

Distinct segments of DNA that code for specific proteins are called

(a)  

6.

DNA replication occurs

(a)  

7.

DNA is tightly wound into chromosomes

(a)  

8.

Chromosomes line up along the cell's equator

(a)  

9.

Chromosomes separate and move toward opposite ends of the cell

(a)  

10.

Cell membrane pinches off. dividing the cell into two new daughter cells

(a)  

11.

The nucleus is called the cell's control center because it contains the

a)

nucleolus

b)

chromosomes

c)

cytosol

d)

cilia

12.

Where in the cell does ATP synthesis occur?

a)

endoplasmic reticulum

b)

Golgi apparatus

c)

mitochondria

d)

nucleus

13.

The movement of solute from a region of high concentration to one of lower concentration is called ____

a)

diffusion

b)

endocytosis

c)

exocytosis

d)

osmosis

14.

A DNA sequence reads: TGAAC. What is its mRNA sequence?

a)

ACTTG

b)

ACUUG

c)

CACCT

d)

CAGGU

15.

Rupture of red blood cells placed in a hypotonic solution is called

a)

crenation

b)

hemolysis

c)

permeability

d)

mitosis