TEAS 7 Science Questions&Answers 2023 Latest Update
(Made 82% with this document)
1. Which of the following is the appropriate threshold value for mammalian
neurons?
o -80 Mv
o -55 mV
o 0 mV
o +35 mV
2. In a certain plant, red flowers are dominant over white flowers. A plant
heterozygous for red flowers and a plant with white flowers are crossed. Which
of the following is the expected proportion of phenotypes in the next
generation?
o 2 red, 2 white
o 4 red, 0 white
o 3 red, 1 white
o 1 red, 3 white
3. Which of the following structures is present in both prokarayotic cells?
o Endoplasmic reticulum
o Cell membrane
o Chloroplast
o Golgi apparatus
4. Which of the following can lead to a tsunami?
o Sunspot activity
o Lightning strikes
, o Flooding
o Earthquakes
5. Which of the following are used to determine a person’s DNA sequence?
o Genes
o Blood type
o Hormones
o Enzymes
6. Which of the following organic molecules contain both an amine and carboxyl
group?
o Lipids
o Chitin
o Cellulose
o Proteins
7. Osteoporosis results from which of the following
o A decline in osteoclast activity while osteoblast activity continues at expected
levels
o An increase in osteocyte activity while osteoblast activity continues at expected
levels
o A decline in osteoblast activity while osteoblast activity continues at expected
levels
o An increase in osteocyte while activity continues at expected levels.
8. Which of the following is released by one type of immune cell to directly
activate type of immune cell?
o Lysozymes
o Perforin
o Cytokines
o Granzymes
9. The measurement indicated by the line across the centre of the cell is best
referred to as which of the following?
(Made 82% with this document)
1. Which of the following is the appropriate threshold value for mammalian
neurons?
o -80 Mv
o -55 mV
o 0 mV
o +35 mV
2. In a certain plant, red flowers are dominant over white flowers. A plant
heterozygous for red flowers and a plant with white flowers are crossed. Which
of the following is the expected proportion of phenotypes in the next
generation?
o 2 red, 2 white
o 4 red, 0 white
o 3 red, 1 white
o 1 red, 3 white
3. Which of the following structures is present in both prokarayotic cells?
o Endoplasmic reticulum
o Cell membrane
o Chloroplast
o Golgi apparatus
4. Which of the following can lead to a tsunami?
o Sunspot activity
o Lightning strikes
, o Flooding
o Earthquakes
5. Which of the following are used to determine a person’s DNA sequence?
o Genes
o Blood type
o Hormones
o Enzymes
6. Which of the following organic molecules contain both an amine and carboxyl
group?
o Lipids
o Chitin
o Cellulose
o Proteins
7. Osteoporosis results from which of the following
o A decline in osteoclast activity while osteoblast activity continues at expected
levels
o An increase in osteocyte activity while osteoblast activity continues at expected
levels
o A decline in osteoblast activity while osteoblast activity continues at expected
levels
o An increase in osteocyte while activity continues at expected levels.
8. Which of the following is released by one type of immune cell to directly
activate type of immune cell?
o Lysozymes
o Perforin
o Cytokines
o Granzymes
9. The measurement indicated by the line across the centre of the cell is best
referred to as which of the following?
