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Worksheets🌈 Quizizz #21 (LE Regents 2022-2023) 🌈
Total questions: 25
Worksheet time: 2hrs 5mins
An organism that makes its own food is a(n)
autotroph
heterotroph
decomposer
consumer
A transparent metric ruler is placed on the stage of a microscope and observed under low power. The diameter of the field of vision was found to be 2 millimeters. How many micrometers is the diameter?
10
200
1,000
2,000
Nucleus?
make protein
Contain DNA that controls the production of protein
make their own food
work with chloroplast
Organelles?
make the cell
work with animal and plant cell
smallest units of life
are the structure inside the cell
Guard Cell?
Specialized cells that control the opening and closing of the pores on the surface of a leaf
Help the cell wall and cell membrane
found in plant and animal cell
makes energy and food
As blood glucose levels increase, hormones are released to return glucose levels to normal. This is an example of
a nervous system disorder
the synthesis of antibodies
a stimulus and a response
an antigen and antibody reaction
Which biological process is represented in the diagram below?
photosynthesis
respiration
digestion
replication
The structural formulas shown below represent parts of two different complex carbohydrate molecules composed of glucose subunits. Molecules 1 and 2 differ in their overall structure. Due to the differences in structure, each of these molecules most likely
is composed of different molecular bases
forms a different protein
contains different elements
performs a different function
To capture their prey, spiders have fangs, which pierce the body wall of insects and inject venom. Spider venoms usually contain specific proteins that attack the cell membranes of the prey. The membranes and most of the contents of the insect’s body turn into a liquid that the spider then ingests for food. These specific venom proteins are most likely
ATP molecules
DNA molecules
biological catalysts
regulatory hormones
Students did an experiment comparing the activity of four different enzymes, A, B, C, and D. The results are represented in the graph below. A valid conclusion based on the information in the graph is that
the pH of some enzymes changes as the temperature changes
enzymes change color in proportion to the rate of activity
a difference in the pH of an environment changes enzyme activity
enzyme activity causes acids to change into bases over time
Which statement best describes the general direction of diffusion across the membrane of this cell?
The diagram illustrates the release of chemical A from a human cell in response to a specific stimulus.
Which cell structure plays a direct role in the release of this chemical from the cell?
nucleus
ribosome
chloroplast
cell membrane
Which row in the chart below correctly identifies the structure labeled Y in both diagrams and the process it performs?
The diagram represents red blood cells placed in three test tubes, each containing a different salt solution.
Which solution would be most similar in concentration to the normal internal environment of the human circulatory system?
solution A, only
solution B, only
solutions A and B
solutions A and C
At the end, a human cell would have 23 chromosomes.
mitosis
meiosis
Both
Produces body cells
mitosis
meiosis
Both
What do you call the cell that forms from fertilization?
fertilized egg
sperm cell
zygote
egg cell
Which of the following is an advantage of sexual reproduction?
Genetic variation
Down syndrome
Mutation
New trait formed
Which of the following is a disadvantage of asexual reproduction?
All organisms have genetic variation
Parents produces identical off spring which is not suitable for survival in a changing environment
Finding a mate is not needed
It can produce a lot of offspring
Cells differentiate to perform different functions because
all genes are turned on inside that cell
all genes are turned off inside that cell
different genes are turned on inside that cell
different genes are turned on or off inside that cell
Which body systems working together to bring in oxygen and transport it throughout the body?
Circulatory and respiratory systems
Digestive and circulatory systems
Respiratory and digestive systems
Nervous and Endocrine Systems
Why must starch be digested before it is used inside cells?
It is too large to diffuse to the membrane
Enzymes are specific
The shape of the enzyme has to fit subtrate
What is the optimal pH of pepsin?
1.5
6
9.5
Not found on the graph
