Self Check 1 Flashcards
Which statement best describes the plasma membrane?
A)it contains a phospholipid bilayer embedded with proteins
B)it is semi-permeable
C)it regulates the entrance and exit of substances into and out of the cell
D)all of the above
D
Which of these does NOT involve substances moving from an area of high concentration to an area of low concentration? A)active transport B)diffusion C)facilitated transport D)osmosis
A
Why is the nucleus, considered the control centre of the cell?
A)it contains the genetic information of the cell
B)it has nuclear pores through which materials can pass
C)it houses the nucleolus
D)it is located in the centre of the cel
A
Where are DNA and RNA located? A) cytoplasm B)nucleus C)mitochondria D)cytoskeleton
B
Which of these cellular structures is NOT composed of membranes? A)endoplasmic reticulum B)Golgi apparatus C)lysosomes D)ribosomes
D
Which organelle is associated with the production of ATP? A)Golgi apparatus B)lysosomes C)mitochondria D)ribosomes
C
Which of the following statement(s) is true about the cytoskeleton?
A)it allows organelles to move about the cell
B)it gives the cell its shape
C)it is a network of microtubules and filaments
D)all of the above
D
Why are cells so small? A)to allow for more efficient movement of material in and out of cell B)to allow for rapid reproduction C)to require more nutrients to survive D)to be harder to see
A
Which statement(s) are true about enzymes?
A)enzymes cannot be used over again
B)enzymes may require coenzymes to aid them
C)enzymes speed up a reaction
D)B and C only
D
Which of the following terms refers to cells of a similar structure that work together? A)organ B)organism C)organ system D)tissue
D
Which of the following is sometimes NOT considered a type of connective tissue? A)adipose tissue B)blood C)bone D)cartilage
B
What does epithelial tissue do? A)it lines body cavities B)it protects C)it secretes D)all of the above
D
What type of tissue is a gland composed of? A)connective B)epithelial C)muscle D)nerve
B
Which of the following is NOT a type of muscle? A)adipose B)cardiac C)skeletal D)smooth
A
Which statement is true about nerve cells?
A)nerve cells are also known as neurons
B)nerve cells are responsible for transmitting information throughout the body
C)nerve cells are found in the brain and spinal cord
D)all of the above
D