ورقة عمل الأحياء لامتحانات القبول في التمريض مع الإجابات

What is the main role of the cytoskeleton?

1. AIt controls which substances enter the cell
2. BIt joins amino acids into proteins
3. CIt gives the cell its shape and helps it move
4. DIt stores the genetic code of the cell

What is a zygote?

1. AAn unfertilised egg cell
2. BA body cell that has just completed its first round of mitosis
3. CA haploid cell made by meiosis
4. DThe diploid cell formed when a sperm fertilises an egg

What is a model in science?

1. AAn exact copy that has no limitations
2. BA single measurement from an experiment
3. CThe control group of a study
4. DA simplified representation of a real system

ما نواتج التنفس الخلوي الهوائي؟

1. Aثاني أكسيد الكربون والماء وATP
2. Bحمض اللبن والأكسجين
3. Cالغلوكوز والأكسجين
4. Dالنشا والماء

A tall pea plant could be TT or Tt. Which cross will best reveal its genotype?

1. ACross it with a short (tt) plant
2. BCross it with a TT plant
3. CCross it with another tall plant
4. DLet it grow for a longer time

Why is the ABO blood group system an example of multiple alleles?

1. AThere are three alleles of the gene in the population
2. BBlood type is controlled by many separate genes
3. CEach person carries three different alleles of the ABO gene
4. DThe gene is found on several chromosomes

After wolves are removed from a park, the deer population rises sharply and young trees are overgrazed. What does this show?

1. AWolves compete with trees for sunlight
2. BOrganisms in a food web depend on each other
3. CRemoving a predator has no effect on plants
4. DDeer are producers in the food web

Five recovery times in days are 5, 6, 6, 7 and 30. Which value best describes a typical recovery time, and why?

1. AThe median of 6, because the outlier pulls the mean up
2. BThe range of 25, because it shows the spread
3. CThe mean of 10,8, because it uses every value
4. DThe maximum of 30, because it shows the worst case