Biology Eoc Category 1: Question Preview (ID: 18208)


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Which cytoplasmic organelles contain hereditary material and can undergo replication?
a) chloroplasts and cell walls
b) cell membranes and ribosomes
c) endoplasmic reticula and food vacuoles
d) mitochondria and chloroplasts

Microscope examination of an animal cell reveals the presence of a plasma membrane but no cell wall. Which additional structures would normally be present within this cell?
a) starch grains
b) centrioles
c) chloroplasts
d) large vacuoles

Which substances may pass through a cell membrane by simple diffusion?
a) starch and protein
b) protein and fat
c) carbon dioxide and water
d) carbon dioxide and starch

Molecules that are too large to pass through the pores of a cell membrane may enter the cell by a process known as
a) hydrolysis
b) pinocytosis
c) cyclosis
d) synthesis

Which is an organic compound found in most cells?
a) glucose
b) water
c) sodium chloride
d) oxygen gas

Which structure includes all of the others?
a) nucleolus
b) nucleus
c) chromosomes
d) genes

A biologist diluted a blood sample with distilled water. While observing the sample under a microscope, she noted that the red blood cells burst. This bursting is most likely the result of which process?
a) staining
b) ingestion
c) osmosis
d) active transport

Ribosomes are organelles that function in the process of
a) phagocytosis
b) pinocytosis
c) protein syntheis
d) cellular respiration

Active transport is different from passive transport in that active transport involves
a) the movement of molecules from high concentration to low concentration
b) an expenditure of energy
c) the use of ribosomes
d) a process which occurs only in the cells of simple plants and animals

The building blocks of both DNA and RNA molecules are known as
a) amino acids
b) nucleotides
c) hydrocarbons
d) polysaccharides

Replicate prior to mitosis
a) DNA
b) messenger RNA
c) transfer RNA
d) ATP

Carries protein building blocks to ribosomes
a) DNA
b) messenger RNA
c) transfer RNA
d) ATP

Provides energy for biochemical reactions
a) DNA
b) messenger RNA
c) transfer RNA
d) ATP

A double-stranded molecule that contains instructions for the manufacture of cell protein.
a) DNA
b) messenger RNA
c) transfer RNA
d) ATP

Which process requires the expenditure of cellular energy?
a) passive transport
b) active transport
c) osmosis
d) duffusion

Which molecules must be present in order for energy production to occur in the mitochondria of an animal cell?
a) chlorophyll molecules
b) carbon dioxide molecules
c) lactic acid molecules
d) oxygen molecules

Which structure, composed mainly of proteins and lipids, aids in maintaining homeostasis in a cell?
a) chromosome
b) centrosome
c) cell membrane
d) nucleolus

Which organelle is primarily concerned with the conversion of potential energy of organic compounds into suitable forms for immediate use by the cell?
a) mitochondria
b) centrosomes
c) ribosomes
d) vacuoules

What is the role of DNA in controlling cellular activity?
a) DNA provides energy for all cell activities
b) DNA determines which enzymes are produced by a cell
c) DNA is used by cells for the excretion of nitrogenous wastes
d) DNA provides nucleotides for the construction of plasma

Which organelles function in the maintenance of water balance in freshwater protozoa?
a) lysosomes
b) contractile vacuoles
c) ribosomes
d) food vacuoles

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